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T580 Thunderbolt 3 to Dual DisplayPort Wont Detect Second External Monitor

Q: T580 Thunderbolt 3 to Dual DisplayPort Wont Detect Second External Monitor

Ok.. I'll try to keep this breif. I bought this laptop SPECIFICALLY for the capability to run 2 external monitors via Thunderbolt 3. I have spent thousands of dollars on the laptop, monitors, and cables and put hours of research into making sure everything was compatible and it won't work. My setup is as follows: Thinkpad T580 with TB3 portTB3 to Dual DisplayPort Adapter(x2)Monitors are both 32" Samsung 1080P monitors at 60hz (NOT 4k) Here's what I have done: Updated display drivers directly from Intel(newer than Lenovo provides)Updated BIOSUpdated FirmwareBought MULTIPLE adapters thinking it was possible an adapter problem.Bought MULTIPLE cables thinking it could be a cable problemI called Lenovo tech support and, after 10 minutes of convincing the tech that my laptop even has a TB3 port he obviously was unable to resolve it so I was mailed a new motherboard and a tech came to my house and swapped the board out. Same issue. The laptop detects only ONE monitor at a time. If I plug them both in to the displayport adapter, one of them will work, the other will say it's not connected. If I unplug the monitor that is on, the previously undetected monitor will immediately be detected and turn on. If I plug the undetected monitor into the HDMI slot it will detect and output. But this is NOT the functionality that I have spent thousands of dollars for. I am out of ideas and now quite sure that, even though the marketing material for this laptop says that TB3 will support 2 displays, it does not.

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Preferred Solution: T580 Thunderbolt 3 to Dual DisplayPort Wont Detect Second External Monitor

I recommend downloading and running DAP. It can help sort out any driver and firmware related issues on your system

It's worked out well for many of us in the past.

You can download it direct from this link http://downloaddap.org. (This link will open the download page of DAP so you can save a copy to your computer.)


T580 (fresh from factory).  Intel(R) UHD Graphics 620 driver (12/27/2017 -  Intel Core i7 vPro 8th Gen.  Windows 10 64 bit (freshly updated).  Lenovo Vantage system update freshly updated.  (today's date: 4/28/2018) LG display plugged into HDMI port on Thunderbolt adapter which is plugged into the USB-C port on left side.HP display plugged into HDMI port on right side. Either display is detected just fine if I unplug the other one; but when both are present, it only detects one of them. This exact configuration was working fine on my T470, Intel Core i5, vPro, 7th Gen. So, bigger and better (and more $$) is worse. My bet would be on a driver issue.  (Windows won't let me install the Intel April 2018 driver - it says probably because the manufacturer did custom driver coding.)

A:T580 Won't detect a second external monitor

UPDATE: Well, ok, it DOES appear to TRY to "detect" the display when I first plug it in.  But it has no properties (e.g., Resolution) and the #3 icon on the layout panel soon disappears and clicking the Detect button won't bring it back (unless I unplug my other monitor - then it detects fine and works fine).

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I have a hp pavilion dv7. It has treated me good until I upgraded to windows 7. Windows 7 does not recognize a monitor from vga or hdmi. I just recived me view sonic monitor in the mail to find my laptop does not agree. I have called hp and view sonic, neiter can help. Please Help! I have installed and re installed the driver, I don't know what else to do!

A:Windows 7 wont detect external monitor

right click on the desktop and go to properties, once in there check for a display tab or something like that

if you see 2 'monitors' in there, simple check 'extend monitor'

should work.

if not use the go by from HP, in this example they are connecting a TV and an External Monitor, disregard steps for TV.

Using Two or More Displays in Windows 7 HP Pavilion dv7-1175nr Entertainment Notebook PC - HP Customer Care (United States - English)

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Everything is working except - no sound via monitor.  Have updated audio drivers,  Suggestions??

A:Yoga X1 ThinkPad thunderbolt LG Monitor Connected via DisplayPort - No Sound

You might need to enable it. 
With the monitor connected, turned on and displaying your computer's desktop:
Right click on the speaker icon in the taskbar and select "playback devices." 
In the white area of the dialog box, right click and make sure both "show disabled devices" and "show disconnected devices" are both checked.
Right click on the various playback devices to make sure they're all enabled. 
If you start something with audio, you should see the little green "meters" bouncing on one of the devices. Right click that device and set it to default.

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On the XPS 15 9550, can an external monitor with Displayport inputs be connect directly into the laptop's USB-C Thunderbolt output using a straight miniDisplayport-to-Displayport cable?  Similarly, can a miniDisplayPort to VGA adapter cable be plugged directly into the USB-C Thunderbolt port to drive older monitors/projectors? Or is the TB15 Dock mandatory in order to get the computer talking to  external video devices through its Thunderbolt port output?

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Does T580 Laptop with Nvidia card detect an External 4k display monitor, atleast one to start, ideally 2 external displays.Is there a need for docking station to accomplish this or out of the box configuration work ?Based on my T570 experience, it could not find external display.   Thank you,  

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Hello Community-  I recently purchased a Lenovo X1 Carbon along with a Lenovo Thunderbolt 3 and two monitors. I have tested out the monitors individually with another computer, and they work fine.  Currently, I have one monitor connected via VGA to the Thunderbolt dock, and I have 1 monitor connected via HDMI to the Thunderbolt dock, which is connected to my Carbon x1. I only have connectivity with the VGA connected monitor, and do not have connectivity with the HDMI connected monitor, although I hear the system "connection sound" when I plug in the HDMI cord.  What is the issue here?  My goal is to have two monitors connected via Lenovo Thunderbolt 3 docking station to my X1 Carbon laptop. Thank you

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Dear all As subject, I read some articles from Internet and bought a Displayport_to_VGA to connect : the Mainboard's integrated Displayport with 2nd monitor. But system cannot recognize the 2nd monitor at displayport. I haven't seen any setting on BIOS about this.  Can anybody help me to fix this problemMany thanks, 

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My external monitor ASUS PB278Q stopped working. I switched out the DP cable which is newly purchased. I have my GPU driver updated and I'm pretty sure I've updated most other drivers on my laptop as well. I'm connecting the DP through the 433835U TP MiniDock Plus Series 3 (https://www.amazon.com/Lenovo-433835U-MiniDock-Docking-Station/dp/B0085MQLMQ). For some  reason the laptop doesn't seem to detect the monitor or vice versa. The monitor says DP cable no signal. Other inputs like the power adapter and the wireless mouse I attach to the docking station do work however. I'm not sure what else I'm looking at. I haven't tried using the other inputs like the hdmi (id have to buy an adapter) or the VGA and the one other one it has since I dont have cable for those... I'm not sure how to resolve this. Please provide support, thanks.

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I have upgraded my HP Pro X2 612 laptop to Windows 10 and installed all the necessary drivers. I even installed the drivers for the HP UltraSlim Docking Station Product #D9Y32UT#ABA which is supposed to be compatible for the device. I downloaded and installed the drivers from this website:http://support.hp.com/us-en/drivers/selfservice/hp-pro-x2-612-g1/7109448 Even after installing these drivers, the displayport still did not function. I have tested multiple cables and adapters, all of which functioned on other devices, but to no avail. I have also tried following the fix here:http://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c05030352&sp4ts.oid=7109448 Still no external display was detected. Is there a driver or fix that I am missing?

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Hi all, I am trying to connect 2 external monitors (Asus VW22AT) to my W550S laptop.Via the VGA connection, it works fine (for both monitors, i tried one by one), the display automatically sets to 1680x1050 resolution. My problem comes from the mini displayport which i used with DVI adapter (I also tried with VGA adapter), I can't get the 1680x1050 resolution, it recommands to use a 1920x1080 resolution but the screen is blurred. If I manually set to 1680x1050, the image doesn't use all the screen, each side is black on 3 centimeters thus the image is also blurred. Do you have any solution please?Best regards, Jean

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I have a Dell Latitude E7450 laptop with a E-Port Plus II port replicator connected to two external monitors using DisplayPort which will not output to multiple monitors.
I have another Dell model and when placed on the port replicator with two external monitors connected, booting into BIOS/UEFI the screen is cloned onto each monitor. However, when doing the same with a brand new Dell Latitude E7450 only one screen is active - the other is off. Within Windows itself, I can only have 1 monitor connected to the port replicator. If I undock, I can run 3 monitors independently indicating an issue with the dock rather than a hardware limitation with the laptop itself.
I believe the above tests eliminates the OS or driver issue and highlights a compatibility issue between the new Dell Latitude E7450 laptop and E-Port Plus II port replicator. I have tried this on 2 separate machines with the same results. I have also updated both the graphics drivers (Version, A16) and the BIOS (Version A04) to the latest releases. I have also tried using DVI cables as well as swapping out the port replicators. Nothing works. In Windows 8.1 itself, it actually shows as two monitors active, but one is not on. If I swap out the monitors to a different brand, I get the same result.
Is there a BIOS/UEFI setting I need to change? Is there a newer port replicator or update I need?

A:Dell Latitude E7450 compatibility with E-Port Plus II with external Dual DisplayPort monitors

Did you resolve this issue and, if so, how? I have the same laptop (but running Windows 10) and the same docking station with the same results.

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After having worked for more than 1 year in double screen, I started to have flickering problem on the external monitor, connected from mini DisplayPort to DisplayPort on an external ThinkVision Monitor.I do not know how to troubleshoot. Below is a video of the issue.As a hint that the card might have some problem, sometimes the PC takes about 30 seconds to decide the graphic mode when the screen is turned on.I would like to understand how to troubleshoot the issue, determine if it can be- hardware failure (pin, chip damaged)- driver failure (but I have driver at level which seems the latest)and understand what should be repaired.any suggestion is very welcome, thanks for your attention,xgiannak

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My thunderbolt 3 (135watt) dock will not charge my T580 intel core i7-8650 laptop while displaying on 2 monitors.  Tried only 1 monitor and still won't charge.  About 3 months ago first got a message that insufficient power to thunderbolt dock.  Warranty replaced the dock last week and still won't work.  I took the laptop to work since I have an identical rig and it charges and displays (only 1 monitor but will also charge an iphone).  I brought a new 135w charger home and that didnt help.  Also replaced little cord from thunderbolt to T580 and that didn't work.  I even tried a different outlet on a different circuit and that doesn't help.  Could it be that the i7-8650 needs the 230W thunderbolt?

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Hello - I wish to connect my 24" Dell monitor (it has every port imaginable) to my Lenovo Yoga 720 WITHOUT using the Thunderbolt port. Is this possible? I am a Jazz musician and I with to use the external display for (1) reading complicatedf [e.g., classical piano] sheet music and (2) for use with DAWs (digital audio workstations, such as Abelton, Pro Tools, etc., where there is LOTS of info crammed in tight and a large monitor is needed). My Yoga's TB port is used for a 500 gig Samsung external hard drive.  The Samsung houses my music programs (e.g., the DAWs, Ivory piano, Easy Drummer, etc.), and I placed them there for the fast speed (this really helps eliminate the latency on the pianos).  I don't need fast speed with the monitor; my prior Lenovo G780 worked just fine with my 24" Dell monitor; the G780 had an HDMI port. I don't find a "TB dock" that has (1) HDMI, display port, etc. AND (2) another TB port.  Does such a thing exist? I've tried the crappy "USB montitors."  They (1) suck and (2) are not 24". Am I screwed here? Thanks, - Jeff Newton (Jazz saxophonist and pianist)    

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hi, I have setup one of my faculty with a Yoga 920131KB plus Thunderbolt 3 Dock. He has an existing monitor (Samsung Syncmaster P2450) that should support 1920x1080. Seems to be current on all drivers and patches under Win10 EDU version. (Including the CCG4 Firmware Update to v55). We are using the HDMI output from the dock. If we try to configure extended desktop to the Samsung monitor at 1920x1080, the screen extends off both sides about half an inch. Maybe also a quarter inch over at the top.  As a work-around, set at 1680x1050, video generally works as expected, but the display starts about 2" in from either side. Generally I don't like using add-on utilities (prefer to just use standard windows built-in options), but somewhere along the line this has the Intel Graphics HD Utility.  I was using that to switch resolution, the Windows settings seemed to track along with changes in the Intel utility, but still overscanned the display.  I played with some other settings in the utility about Display Scale (other than 100%), didn't seem to change anything. A second problem occurs with this setup: when the laptop is used at home, put to sleep, then plugged into the dock, the screen is displayed on the external monitor at maybe 200% (?).  That is, you only see the central portion of the image.  No fiddling with settings seems to correct it, but rebooting usually fixes it. The second problem also occurs with a similar Yoga 920 + Dock (d... Read more

A:Yoga 920, Thunderbolt 3 Dock and external monitor

Also wanted to mention something I noticed while working on this: I saved a log from the Intel Utility. There is a section in there about "Maximum Image Size". This seemed to be correct for the laptop display (12.2"x6.69") but the Samsung was listed at 6.3" x 3.54"    It is a 24" diagonal display, so that is obviously wrong, but I don't know that it is important. Intel(R) UHD Graphics 620 Report Date: Monday, February 5, 2018Report Time [hh:mm:ss]: 1:21:19 PMDriver Version: System: Windows* 10 Education (10.0.16299)Physical Memory: 16225 MBVendor ID: 8086Device ID: 5917Device Revision: 07Graphics Output Protocol (GOP) Version: 9.0.1066Current Resolution: 1680 x 1050 Display Type: DigitalDDC2 Protocol: SupportedGamma: 2.2Connector Type: DisplayPortDevice Type: DisplayPortMaximum Image SizeHorizontal Size: 6.3 inchesVertical Size: 3.54 inches

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Hello Everyone, I am new here so please go easy on me.I just bought and X1 Carbon 5th Gen laptop c/w Thunderbolt 3.0 docking station.The problem that I have is that the docking station won't recognise any of the external screens that are connected.I am using two Acer screens (one is connected using HDMI port on the dock and the other one uisng Display port).I have tried by connecting just one screen but nothing.I can see that Thunderbolt software is installed and its connected to my laptop.The laptop will charge through the docking station and also the wireless mouse and keyboard will work fine through the dock.Lenovo recommended that i should update my drivers.So I installed Lenovo Companion from Windows store. But it won't update my system. After clicking on System Update, I will get an error message saying "There is a problem in reteriving new updates for your system.Please try again later".Hence I downloaded all the drivers from support website and installed them manually but my docking station is still not working with the external monitors.The monitors works fine when connected directly to the laptop using the HDMI cable. Thanks in advance for your help.

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Hello, I have bought a USB-C Thunderbolt 3 to HDMI cable which i would like to connect to my X1 Extreme laptop.After i updated to the latest BIOS firmware, latest Thunderbolt firmware and Windows 10 (1809) and all other available updates, i still could not detect my LG 65C8 OLED TV which i have connected. It just does nothing when i insert the cable, not even a notification. For more information about the cable:https://shop.transmedia-germany.com/verbindungskabel-p-20013356.html Regards,Rob

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I recently got a Dell XPS with Thunderbolt 3 technology for work, but also have a 2011 iMac with Thunderbolt.  I am wanting to use the iMac as an external monitor for the Dell, so I found a Thunderbolt 3 to Thunderbolt adapter to utilize TDM.  However, I have not had any luck making it work when pressing command-F2.  Through my research, I've found that using a pre-2011 iMac with a mini display port and a PC with a mini display port has worked no problem.  I've also found that using a post-2011 iMac as an external monitor with a PC should also work no problem if both computers have Thunderbolt technology.  In addition, I contacted Apple Support and they told me my connections should work since I have stepped the Dell's Thunderbolt 3 down to Thunderbolt, and connected the two machines via a Thunderbolt cable.  I am able to tell that my Dell recognizes the iMac, but have no way of knowing if the iMac recognizes the Dell.  Is there something that I'm missing?  Is there software that would make this work?  Has anyone had success getting this to work?  Any input would be greatly appreciated.  Thanks.    

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I bought a Dell XPS 13 9350 in December and I wanted to connect it to an external monitor via the thunderbolt port. I bought an type c to hdmi adapter off amazon and it connects. (Actually bought 2 and the problem persists). But occasionally both my screen and laptop will turn black then back on again. This causes my video that i'm playing to either freeze/crash (netflix/youtube) which is SUPER annoying. It goes from occasional to quite often. It's really random.

My drivers are up to date, cable is new and the monitor is new from boxing day. 

Any help is appreciated :)

A:Dell XPS 13 9350 Connecting external monitor via thunderbolt port

There are several posts on this forum about this issue.

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I recently purchased an XPS 15 9550 with i7, 16 GB RAM, 256 GB SSD, and GTX 960m dGPU that I have connected to a 27-inch QNIX qx2710 2560x1440p external monitor. I have this connected through a Cable Matters USB-C/Thunderbolt 3 to DVI-D adapter and cable.
The monitor and everything seem to work fine at 60hz, except for every time I unplug, turn on, or restart the monitor/computer the first five or ten minutes of use is plagued with constant screen flickering and flashing. After ~five minutes the monitor seems to stabilize and will only rarely have a single screen flicker. 
I have read other forum threads describing similar issues with different monitors/cable setups and that there is likely an issue between the wifi card and thunderbolt port. The common recommendation is to turn down the wifi output percent to 75%, however the Killer wifi card on this computer does not have an option under advanced settings to turn down the power output. Has anyone had any luck doing this on a recently purchased XPS 15 with the Killer wifi card?
The cables and adapters are new and the BIOS and all drivers are up to date. Other than the wifi issue, does anyone have suggestions or solutions to this screen flickering problem?

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Just found a very interesting problem.  I just purchased a new 27" monitor and connected to my Dell XPS (9343) using a mini DisplayPort to HDMI cable.  The laptop was on and running when I connected everything and closed the lid.  Everything was working beautifully, until I ran WIndows update and had to reboot.  Then all *** broke loose.  The machine started beeping like crazy and the battery charge light started blinking orange then white and then it shut down.  After I recovered from my almost heart attack (I thought my laptop had died)...I opened the lid and hit the power button and it started up fine.  I closed the lid after it rebooted, and continued to work fine.  So as a test, I restarted the laptop again with the lid closed while the external monitor was connected and again the beeping and the orange light blinking.  Proceeded to turn it back on with the lid open...everything fine.  I checked the BIOS settings and everything seems to be normal.   It seems there's a problem with this laptop not being able to be restarted in the closed lid position when an external monitor is connected (something I do ALL THE TIME with my Lenovo work laptop that is also connected to an external monitor).   Has anyone else had this problem?  Is Dell aware of this issue??  

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My Laptop: Helix (Type 3xxx) Laptop (ThinkPad)Serial Number: R9Z7FE3Machine Type Model: 369843GGot a mini display port connectorGRAPHIC Display adapter: INTEL HD 4000, Driver version: External Monitor: IIYAMA ProLite LE4041UHS-B1 4K (3840 x 2160)https://iiyama.com/gb_en/products/prolite-le4041uhs-b1/Interfaces & connectors Headphone connectorYesVideo INVGA, DVI, 2x HDMI, DisplayPortVideo OUTDisplayPort (daisy chain)Audion INMiniJackAudio OUTMiniJack, speakersControlsRS232C (IN/OUT) The monitor comes with it a mini display port to display port cable. My questions:Q1. Can I get 4k 3840 x 2160 resolution @ 60 Hz if I connect the monitor to the laptop by using the aforementioned cable?Q2. if I decide to daisy chain via displayport the monitor to another monitor with the  same specification what is the maximum resolution and hz I can get in the second monitor?  Thanks in advance  

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Hi All,What is the best to run two 3840 x 1600 minitors (LG 38UC99-W http://www.lg.com/us/monitors/lg-38UC99-W-ultrawide-monitor) via a T580 (or T570) via thunderbolt 3 connection? Do I have to buy a dock/port?Many thanks

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I would like to update the thunderbolt firmware on my Lenovo Thinkpad T580. However the Firmware Update tool tels me "Firmware file (*.bin) not found in folder". I ran the update through Vantage and though the pcsupport download link.I follow the steps in the readme, admin account and all that, but with the same result.When I click next and ignore the file not found warning I get the following error:  Error: 0x207 SDK_FILE_NOT_FOUND File does not exist.

A:Thunderbolt Firmware update on T580 not working - SDK FILE NOT FOUND

Please do these steps:
1.  open a command prompt as administrator
2.  cd \fw\win\thunderbolt
3.  detect.exe
4.  post screenshot of the output here.  It should look something like this.

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Where can I get cables and adapters for the Dual-mode DisplayPort (DisplayPort++) output port.  I want to connect multiple monitors to my laptop for use at home, without buying a docking station.  I already have an old VGA monitor connected to the VGA output.  Are there any other options for connecting additional monitors other than the DisplayPort++ output and docking station?  I've searched Amazon, E-Bay, Best Buy, and nobody seems to have any cables or adaptors that support DisplayPort++.

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Both PSREFs claims [email protected] over Thunderbolt but I thought the dual port controller (even in Alpine Ridge and I suspect these will be Titan Ridge) always had eight lanes of DisplayPort fed into it which is enough for 5K @ 60Hz. So what gives?

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After the Thunderbolt firmware update, I'm now getting terrible white level clipping on my external monitor. I'm a photographer using a 100% Adobe RGB monitor calibrated with DisplayCal and a Spyder 4. Until updating the firmware, I had 0 problems. Now, compared to before - and compared to other computer attached to the same monitor - the contrast is completely wrong. All RGB values including and above 244 are clipped to 255. This is obviously a huge problem. I've uninstalled all of my calibration software, and removed all my color profiles from Windows Color Management, so Windows should revert to the default profile. Still, the same problem! What is going on? I never had this problem, until the update!

A:X1 Carbon 6th - Harsh white level clipping on external USB-C monitor after Thunderbolt update

Hi benjaminbusch, Can you be precise about WHICH update you are referring to please (e.g. provide a link). Thanks!

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i have a pen drive and an external HDD. my pc does not detect either of these in the front USB, the pen drive does work when plugged in usb ports which are behind the pc, but the hdd does not work anywhere. A baloon pops up saying USB device not recognized. Both these devices work perfectly when plugged in my laptop.

Windows XP
p4 2.8 HT
1Gb ram
intel 865gbf mobo

A:XP wont detect external hdd

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The Precision 7720 with P5000 video card is specced at DisplayPort 1.4, HDMI 1.4 and Thunderbolt 3. I know that you can get adapters to go from DP to HDMI or Thunderbolt to DP and HDMI though. If I have an application that requires HDMI 2.0 for example, can you get it from the Thunderbolt 3 port or the DisplayPort or is there an underlying limit to HDMI 1.4 in the processor itself? I'm having a hard time understanding the various capabilities.

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We recently moved from the Lenovo T470 to the T480. We have purchased two of the T480's, with both we have the same issue;The adapters we have used for the T470, won't work with the T480's. The ports do work with our usb-c displays.  Some background information, the monitors we are connecting too are both from Apple, Thunderbolt Display and the Cinema Display. We have no issue with the T470, with the same adapter. The adapter we are using is a Apple Thunderbolt 3 to thunderbolt 2. We have also tried other adapters from some aftermarket sellers.  What we have tried already:Several adapters, none work. Both portsWe have tried deactivating the security in the BIOS for the USB-C, just to make sure we tried everything, but also no succes. We have spoken to our Lenovo reseller for over an hour, but no succes or tips.. Checking the thunderbolt software, if it gets recognized or anything but no. If anyone could provide some insight into this issue would be greatly appreciated.  Thanks in advance!

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ive got a seagate 80 gb hard drive which i previously put in a safecom usb caddy to use with my laptop.
it worked fine until about a week ago as whenever i plugged it in to USB laptop said device has malfunctioned.
i then bought a new caddy ( qtec) and tried connecting that to my laptop. it said device could not be installed properly.
i have a Dell inspiron 1000 laptop im not sure if it has usb 2 can someone please advise me on how to find out if it has and also how i can get my hard drive recognised by my laptop

Many thanks in advance

A:Laptop wont detect external usb HDD

A few things it could be...
1) A power issue. Are you trying this with the laptop running on the AC adapter ? ?
2) A HDD problem. Try hooking that drive up to another machine and see if it is picked up.

The issue with USB2 is not the problem as the unit was working at one time, but you can check your MBoard manual and it will tell you what type USB you have.


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HI All,

its been 24 hours since my Win 7 ultimate edition installation, and still i have not managed to get my dual monitor working.

I was running Vista OS for 2 years and was working everything fine. But now with Win 7 my second monitor (Samsung Syncmaster 2333) is not being detected.

I went in the Asus driver page and it seems that for the Standard Vga grafic card there is still no driver for Win 7, is this possible?

If it is really like that, how can I get my dual monitor working? I thought about buying an external graphic card...is this the only solution or am i missing something?

Any help is appreciated!


A:Standard VGA (Asus) does not detect dual monitor with Win 7

To tell you the truth i heard ways of doing this but your onboard vga adapt might not be strong enough for dual screen support

I can tell you i run dual monitors off the same vidcard im sure i can throw a third one in the mix off my vga but your mobo should give you the specs on the onboard adapter where it should give you in full detail the capabilities

If not i suggest getting a video card that fits the bill also make sure you have adaquete power to supply the card or the upgrade will be meaningless

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I am trying to use a 3rd party external GPU enclosure that attaches via thunderbolt, and when attached, I got the message pop-up that external GPU support was not enabled by the vendor, and as such the device will likely not work? Has Dell locked the Latitude 7480 down to no external GPU support?

A:Latitude 7480 - Thunderbolt 3 - Thunderbolt software say external GPU support not enabled?

Probably.  I read somewhere that since Dell is pushing their Alienware external GPU stuff that uses a proprietary connection, they never enabled external GPU support via Thunderbolt.  

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Hi please can anyone helpmy monitor works via vga cable to vga cable on old acre laptop but when I connect via displayport to displayport from lenovo the monitor scans but can?t find it is it meant to work directly or do I need to use displayport to dvi adapter that came with machine then buy another adapter to connect up to the vga connection bought machine off eBay no manual etc struggling to get it connected.  Is is it better if I buy think centre monitor ???  Mine is up z24i.    Thanks for any advice allison  

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Hey guys...newbie posting out of total desperation and needing help!

I bought a Samsung SH-D162D DVD Drive in a USB enclosure to connect to my Toshiba Windows 7 laptop via USB.

I cannot get windows 7 to find it! When I plug in the USB cable the balloon comes up to say it has been installed, I can see it on My Computer for about 1 or 2 minutes then it drops off. It isnt listed in my hardware or anything.

Its not found in Disk Management or My Devices so it isnt a case of changing the drive letter - i cant find the drive to change it.

I have also tried to find the upper and lower settings in regedit....couldnt find them so couldnt delete them as advised in other posts of this nature.

It is set to master, the IDE connector and power connectors are fine. Its gotta be a windows 7 problem cause it does show up very breifly. In the minute or 2 its there I cant do anything with it...it just hangs although it will open and close. Ive googled it and cant find anything...mainly registry issues but they didnt help.

Ive also connected it up to another laptop with XP and had no problems so I know the DVD Rom works fine and all the cables are ok.

Ive tried in all 4 USB ports on my laptop and also turned off all energy settings...all with no luck. And I also have EVERY windows 7 update...

Heres exactly what happens from power off on the enclosure.

1 - I plug in the USB lead then turn on power to the enclosure.
2 - I quickly go to Start, Computer and I can see the DVD Rom... Read more

A:Windows 7 Wont Detect External DVD Drive

i also have the same problem some post it is mentioned you have to switch off your system and ten plug the external drive.I still have to test this.Have you fixed your system.

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Hey everyone!
I'll get the specs out of the way first. I have an HP dv9000 (2007) and a Macbook Pro (2009). For the longest time I've backed up my PC on my SimpleTech 250GB external hard drive, which is USB powered (plugs into two ports) I recently installed XP on my Mac so I formatted the external drive and backed up my Mac with Time Machine on the it.

Anyways, now I want to sync it back with my PC. I connected it, and I could hear the drive attached noise, and it also shows the 'Safely Remove Drive' option, however it isn't listed under My Computer. In the device manager, I can see it under Disk Drives as 'Hitachi HTS.... USB Device'. I checked to update drivers and it said everything was up to date and it claimed that it was working properly.

Any ideas on how to format it so that my PC will list it under My Computer?!

Thanks in advance!!!

A:PC wont detect external drive after sync with Mac

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I am using a 22" screen for my primary screen and the laptop lid open for a secondary screen. The main screens resolution is 1680x1050, I can set it to anything I want and it's always using the full screen. The laptop screen on the other hand will only use the full screen if it's at 1400x1050 resolution (max for that screen, IBM Thinkpad T43). With the large 22" screen I have no trouble reading the screen at high resolutions, the screen is huge, with the little 14" screen though I have to strain to read the screen at 1400x1050.

The problem is when I set the laptop screen to anything lower than 1400x1050, it uses less of the screen. Preferrably I want it at 1280x1024 or 1024x768 (I dont know which I want yet as I can't see the freaking screen at that resolution). At 1280x1024 for instance the useable screen is just a box in the middle, so the "1280x1024" is still barely readable for me cause it's shrunk from full screen, plus it's just annoying only using a portion of the screen.

I have played with the ATI Control Center, the Thinkpad display settings and windows display settings and just cannot get this thing to go full screen at lower resolutions when docked and using the external monitor.

Anyway to resolve this?

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I can not get my new Yogu 730 13IKB to connect to an external monitor. Worked with Lenova support and ran diagnostics and updated all drivers but can't get either port to detect an external monitor. Surely there is a solution to this issue. Lenova support is now saying that it might be the machine. Before I return the machine I would like to see if there is a solution. Great laptop, but I need it to support external monitor(s)

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I just bought an HP Envy 23" All-In-One desktop a few months ago and am just now attempting to pair it with an external monitor (TV) via the HDMI port. The computer doesn't even detect that it's been hooked up to anything and the TV still says "no signal". I tried the same HDMI cable and TV with my laptop and it works fine, so it must be the computer. Any suggestions? Is it a driver problem? I don't know much tech-wise, but am willing to try if anyone has any ideas on how I can fix this.

The operating system is Windows 8.1 and the monitor is an AOC Envision 22" TV, model number L22H998. I visited the AOC website in search of a driver and didn't see the model listed. Is there perhaps an equivalent I could use? I don't know much about drivers.

Thanks and let me know if any more info is required for an accurate diagnosis.

A:New Computer (Win 8.1) Won't Detect External Monitor

Hi Dejalive, welcome to the Eight Forums.

Couple of questions:
Is the TV signal input set to correct HDMI port (for instance if the cable is in HDMI2 in TV, the TV signal input must be set to HDMI2)?Does the Windows Screen Resolution Tool show the TV when HDMI cable is connected both to PC and TV?If Screen Resolution does not show the TV by default, does clicking the Detect button help?

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I am trying to connect my yoga 710-14isk to my external monitor through the micro hdmi port on the side of the computer. When I plug it in and go into display settings it isn't being detected. I'm not sure if I need certain drivers to do this or what. Please let me know what I can do to make this work.Thanks

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Ok so i have Sager np9150 laptop with nvidia 670m 1.5gb ram graphic card and integrated Intel hd 4000.
the monitor im trying to connect to is a Lg Flattron wide 2000:1 digitial fine contrast with 5 ms response time. I bought a hdmi to dvi adapter cable so that i can hook the hdmi side to my laptop and the dvi side to my monitor since it doesn't have a hdmi slot.

before plugging the hdmi side into the laptop my monitor say check signal cable. when i plug the HDMI side into my laptop the check signal cable disappear and it say digital power saving and then it stay in that mode.

I don't think the cable is faulty since i try it on my desktop and extended to it and it work. I plug the HDMI into my gts250. but when i plug it on integrated card it did not work.

I've already try the fn+f key it doesn't work. i try another monitor and it work but i don't why this monitor wont work

A:My laptop cannot detect external Monitor

Have you checked your Display Options?

With the monitor connected, right click on the desktop and choose Screen Resolution. In the window that opens you can (should) see two monitors, and options for using them.

If you don't see 2 monitors, the click the Detect button and see if it is recognized then.

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Hi, I have a T470 laptop with the USB-C charger. I'd like to connect a DisplayPort LCD screen to use as a second display while simultaneously being connected to A/C power and charging my batteries. I am having a bit of trouble figuring out what my options are. 1. I could buy a Thunderbolt 3 hub/dock with a DisplayPort connector on it. I would then connect the charger to one of the USB-C ports on the hub/dock, and the screen to the DP connector. From what I can see, these hubs are fairly expensive, so given that I currently don't need to connect any other TB3 devices I'd like to avoid it if possible.2. I could buy a USB-C - DP adapter or cable, but I have not seen anything with some kind of pass-through function which would allow me to connect my charger. I thought daisy chaining was something TB3 can do, but unfortunately the charger does not have the ability to do this (I know a DP connection has to be at the end of the chain).3. The T470 has a slim tip charge port, in addition to the ability to be charged via the TB3 port. Perhaps a USB-C - slim tip adapter exists which would allow me to connect my charger to the slim tip port, and not worry about the lack of daisy chaining in point 2. I've found a different adapter (wrong interface and wrong direction), but nothing that can do this. Thanks for any info/advice!

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I formatted my laptop and had all my dell drivers saved on my external hard drive, when i plugged it into the usb port it detects it and it lets me saftley remove hardware but it dont show up in my computer.

I went into disk management and seen it was there but wasnt assigned a letter, it wont let me assign it a letter either, its greyed out, so i downloaded WD Data Lifeguard Diagnostic and ran a scan, it passed the scan, im pretty sure its detecting my hard drive as a generic multi card instead of a hard drive, can any1 help me with this problem please? thanks

A:will detect but wont open external hard drive

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My monitor wont detect the computer tower it is connectedt o a certain computer tower. It works for others. When the computer tower is turned on all the lights light up, the fans start, the hard drive starts to spin, and the cd port works. please help.

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Hi everyone.

I have a MSI GS60 ghost pro gaming laptop which has Intel HD graphics 4600 and Nvidia GTX970M GPU, CPU i7 4720HQ, running Windows 10. I study abroad, several months ago i went back home and plugged-in my laptop to the TV via HDMI for gaming like normal. Yesterday i bought an ASUS VC239H external monitor and tried to do the same thing, but there is no HDMI input signal, the Laptop cannot detect the monitor (include display settings, intel HD graphics settings, nvidia settings). This is what i tried:

- Fn+f2, Fn+f8 keys, windows P switching to duplicate or extend or anykind of options
- plug the monitor into my friend's laptop with windows 8 through that HDMI cable and it works fine, the same with other laptop running windows 7==> cable and monitor are normal
- plug my laptop to my neighbor's smart TV. There was ''connected' symbol which appears on the TV but black screen instead of image, Laptop couldn't detect the TV
- reinstalling nvidia and onboard-graphics drivers and update to the latest
- Made a clean install of windows, tried windows 8 also but the same result
- Updated my BIOS and EC
- Bought an adapter HDMI-Mini Displayport to use the mini displayport with HDMI cable

nothing works

Im sorry that i copied my thread from other forum to here therefore some problem with the text color

A:My laptop cannot detect any external screen/monitor

Is there a setting in the BIOS that controls the use of the HDMI output - perhaps it has been inadvertently turned off.

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