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Connect T480 to display port a 2k monitor

Q: Connect T480 to display port a 2k monitor

I currently using a T460 and connect to two external monitors using the onboard hdmi & mini display ports. I am not using the display on the T460 however. Which cable/adaptor I should buy to do the same on the T480? Thanks.

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Preferred Solution: Connect T480 to display port a 2k monitor

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My daughter has a M91P model 7052-A9G serial number S4VEK82 running Windows XP SP3 for compatibility with legacy software.  Her existing monitor is connected via VGA and she now wishes to use a Dell U2715H for better definition.When she connects the new monitor to the display port on the M91P it is not recognised by the system and the video is still only active on the VGA port.She is 80 miles from me and I support her using Team Viewer which enabled me to switch the desktop display properties to digital but still no output on the Dell so I changed it back to VGA so that she could work.The new monitor and display port cable has been tested on a friend's computer where it worked OK. Has anybody met this before and how did you resolve it. Many thanks Firkle

A:M91P will not connect to a Dell U2715H monitor via the Display Port

When I Googled for your problem, I found this on the Dell forum.  The built-in Intel graphics on M91p has DP 1.1: 

RE: U2515H - "no signal coming from your computer"

This happened to me when I enabled DP 1.2 option in the menu.
If that is the case, you do not have a DP 1.2 compatible hardware and software/OS. (perhaps if you are using a linux machine)
When your monitor tells no signal... push a menu button for about 10 seconds. It will show you other input sources, keep pushing. Then it will bring a menu to disable DP 1.2. Disable it. Restart the computer.
Hope this helps

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New S140U Portable Monitor, plug into USB port and display goes blank, try to extend to multiple displays and locks up my Elitebook 840.  Downloaded latest driver and retested, get same blank screen.  Connected both USB plugs to laptop and still no change.  When plug in get initial display of HP logo but then goes blank and stays blank.  Power light on back of unit is on.

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I'm trying to connect my T480 to an external display using the left side USB-C ports. When I plug in the external monitor using a (USB-C to DVI cable), Windows 10 displays an error message like: "USB not recognized. The last USB device you connected to this computer malfunctioned, and Windows does not recognize it". According to T480 user guide those ports should work with an external monitor, so is this a hardware issue? All drivers are up to date.

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We are using the display port for a second monitor.  It works for a while but eventually locks the computer up.  we have to disconnect the display port cable, log back in and then reconnect the display port cable, and it works fine again.  We've switch the display port cable to the main monitor, however the problem follows the displayport cable.  The frequency is once every week, and we about 20 computer utilizing the dual monitor setup.  The second monitor is always using the VGA port.

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When I connect 60" LG monitor and duplicate my laptop screen I can only see the bottom toolbar on the monitor. The Laptop screen is fine. Any ideas??

A:Monitor display problem on VGA port

Does an extended desktop work, or does it do the same?

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i wanted to set up a dual monitor. primary monitor  - display port, secondary monitor - vga hooked up the display port. the monitor started blinking at 3 > 5 sec increments. not blinking wildly, just off and on. went into bios - set to multiple display...still blinking. i never set up the dual monitors. just pulled out the display cables and re-inserted the vga, which is fine now any suggestions? thx lenovo m63sff, w7

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Hi all,

I just ordered a new monitor, the Samsung U28E590D. My gfx card is an MSI GTX 780ti.

I read that without HDMI 2.0 I won't be able to get 4:4:4 chroma subsampling and only 4:2:0 with hdmi 1.4.

I don't really know what that means but from what I've read it can effect colours so now I'm worried about my purchase.

The monitor has a display port 1.2 and so does my graphics card. If I connect them this way with a display port cable included with the monitor will I get the 4:4:4 and not sacrifice any display quality? Or is the 4:4:4 only achievable with HDMI 2.0?


A:4k Monitor 780ti Display Port Q.

Perhaps this will help. HDMI - Wikipedia

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My other monitor states its connected to the pc however it doesn't display an image, swapped my secondary one with my primary one and the primary doesnt work, bringing me to the conclusion that is must be HDMI port im using, the one which works is for my GPU and that has my primary one so its the one on my motherboard. the original connector is dvi but i got an adapter for the monitor side, it definitlely works but im wondering whats wrong with it not displaying it.

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Good morning,reading the technical specifications of my 8560w Quadro 2000M, I noticed that the display port supports resolutions up to 2560x1600 @ 60Hz.Would someone confirm that I can connect, to a display port, a Del U2515H monitor and use it to the maximum resolution of 2560x1440?Thank you.

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I've just bought an old desktop but when I tried to plug in my monitor I found there was no db15 port to plug into. There's only two serial ports on the back, one has the IOIOI symbol and the other has a rectangular symbol. Does anyone know if I can connect a vga monitor to it?

I don't want to buy a cable and then find out it's no good!


A:Can I connect monitor to serial port?

VGA ports have been standard for quite some time. However, it's possible that the old computer doesn't have a video card. There has to be a female VGA port to connect the monitor to.

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Hi,I have a Zbook G3 which has and HDMI port to connect to an external display. The monitors I have are EliteDisplay E241i which have display port connectors (as well as RGA and DVI, but I'd rather not use those). Can you please point me in the direction of a good connector that will allow me to display my Zbook on the above monitors?Thanks in advance,Phil

A:HDMI (laptop) to Display Port (Monitor)

Hi, Except for VGA, from HDMI to DisplayPort or DVI is digital signals and you should get same result on your current monitor. Any standard HDMI to DVI or HDMI to DP cable will do the job. Regards.  

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I am on a laptop with a gtx 765m. I am trying to connect a thunderbolt port to a display port monitor. My understanding is that thunderbolt is backwards compatible with display port. But, for the life of me I can not get it to work.

I am using a minidisplay port -> display port cord.

I have ended up hooking the monitor up with an hdmi cord for now. FYI the monitor is a 2560x1440 monitor if that matters.


A:Thunderbolt to display port monitor. GTX 765m

Do you know for sure the video is ported through the Thunderbolt connector?

Any chance we could get your computer model number?

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I'm looking at a 4k external monitor, and had assumed the need for the Workstation dock for a DP 1.2 connection to the 4k monitor.  Is the P50 (right side) mini Display Port able to drive direct connection to the external monitor (at 60hz etc) ... with a miniDP-to-DP adapter?? thanks 

A:P50, mini Display Port ... direct connect 4k monit...

According PSREF http://psref.lenovo.com/syspool%5CSys/PDF/ThinkPad/ThinkPad%20P50/ThinkPad_P50_Platform_Specificatio... Max resolution:[email protected] (DisplayPort via Mini DisplayPort cable);[email protected] (Thunderbolt);[email protected] (HDMI)

__________________________________ThinkPad (1992 - 2012): R51, X31, X220, Tablet 8.Do you care about privacy and security ? Leave Google behind

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I have an i5-based DG67BL intel motherboard computer that has a DVI and HDMI ports with one DVI monitor connected to the DVI port.

I added an GeFORCE 210 graphics card to it that has a VGA and a DVI ports and connected additional two monitors to it.

So far computer is working fine with three monitors configured in windows as extended desktop.

This motherboard has just one PCIeX16 slot. It has 2 PCIeX1 and a PCI slot that are vacant.

I need to connect yet another DVI monitor. I took a HDMI<->DVI cable, connected it to the onboard HDMI port. the monitor was not detected.

I tried various combinations of monitors and bios settings in vain. Under no circumstances the HDMI port drove the DVI monitor.

The cable is working fine elsewhere.

What did I do wrong ? Is there something I need to buy/replace for this to work ?

Thanks !

A:How to connect additional DVI monitor to HDMI port

you 'need' to connect a 4th monitor? I recommend getting graphics card(s) to support your endeaver, but up to you.

Why don't you get a dvi to vga or maybe its a vga to dvi cord and connect the dvi monitor to the graphics card vga port?

Does it have to go into the HDMI port? HDMI carries sound as well as the video signal, dvi only carries video, and vga carries a lesser quality video

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Greetings! I'm experiencing a problem on what appears to be HP Prodesk 600 G2 computers exclusively.  Intermittently, when the computer wakes from sleep or standby, the computer loses its monitor drivers. When the computer wakes the monitor is now in 640x480 resolution and if you look in the Screen Resolution window it shows the current driver is the "Generic Non-PnP Monitor".  These computers are hooked up with dual HP displays of like model and when it happens the fix seems to be to simply restart the computer. While this is easy enough it is extremely disruptive to the work of our users and so I've been tasked with finding a real fix to this problem. To that end I have updated the computer with the latest BIOS from HP as well as the latest Intel graphics drivers from HP's website (Intel Graphics 530 chipset) but to no avail. We have also tried using different monitors and it continues to occur intermittently. Also, we have many HP Prodesk G1's in the building and none of these have this problem. This leads me to suspect that this is a problem exclusive to the Prodesk G2's and not with Windows or the monitors we are using. It should also be noted that both monitors are connected using the on-board display ports. My hunch is that it is the Intel Graphics 530 (onboard) graphics chipset that that's the problem but I don't think we should have to buy a seperate graphics card to get two displays to work on these computers especially when it's so clear th... Read more

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I'm wondering if someone possibly help as I'm not sure where to go next.

I have a Dell U2311H monitor connected to a XFX Radeon 6850 via its DisplayPort and I'm having problems with random flickering where the monitor picture goes black for a few seconds.

I have another monitor, an old HP, connected via DVI and a 1080p Sony LCD TV connected via HDMI.

I have had the Dell and HP monitors connected via DVI for months without any problems but I wanted to extend my Win 7 desktop to all 3 displays and I believe you can't do that using DVI, DVI and HDMI, hence why I want to use the display port.

I have tried 2 different displayport cables, so I don't think it is that. I don't have another gfx card or monitor to try to eliminate from the process.

One thing I did notice is that if I change the resolution from 1080p to 720p it seems to fix the problem. I'm wondering if it could be something to do with the displays running at different resolutions? Although I did try both the TV and Dell running at 1080p but there was still a problem.

Any suggestions greatly received,


A:Display port flicker on Dell U2311H monitor


I happen to see this thread when searching for solution for the same problem. I am using 3 monitor display setup, using U2311H connected with displayport to HD 5770 graphic card and 2 samsung 940b monitor connected with DVI to the same HD 5770 graphic card.

U2311H flickers (screen become totally black) for 1 to 2 sec at random times and return to normal.

I did not try any other display port cable yet because I did not have time to buy another one.

Seems like adbarnes have the same problem, I am wondering if it is because we are using 3 display setup? or display port? Or maybe there is something wrong with U2311h?

I have been using U2311H for some time, this flicker problem happens recently.

adbarnes, have you discovered how to solve the flicker problem?

My dell U2311H is using 1920x1080 (recommended) resolution
My samsung 940B is using 1280x1024 (recommended) resolution
(all using the recommended resolutions)
using win 7

Thanks everyone for helping

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HiI cant get a picture on my monitor using the mini display port, i am using a mini dislay port too hdmi cable, but i dont get anything on the monitor.  My notrebook is a Lenovo L540 with only Intel HD4600 graphic and windows 10.

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I have an HP ZR22w monitor with three inputs: VGA, DVI, and DisplayPort. I want to hook up a computer to the DisplayPort, but my video card id HDMI out. All the cables are sold as DisplayPort source out to HDmi monitor in. Are these cables reversible?
Can you recommend the right way to hook this up? Is there a cable that exists for this situation? Do I need a combination cable/adapter?

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The Think Center M58 tower has an on-board display port noted as "Display Port 1.1a."The graphics adapter is listed as Intel integrated graphics 4500, ATI-Radeon HD3470, 9500GT 512MB, 128 bits ATX. The maximum resolution for the Display Port of the M58 6239 was quoted as 2560x1600.This refurbished M58 is running Windows 10. Will the newer Lenovo L24q-20 monitor, 2560x1440, with display port  version 1.2, be compatible with the display port of  that M58 Think Center?.

A:Is Think Center M58 display port compatible with new 1440p monitor?

@csouthpaw wrote:
The Think Center M58 tower has an on-board display port noted as "Display Port 1.1a."
The graphics adapter is listed as Intel integrated graphics 4500, ATI-Radeon HD3470, 9500GT 512MB, 128 bits ATX.

Does the HD 3470 have DP?  Is dual-link DVI an option (do both HD 3470 and monitor have it)? 

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OLD monitor Dell 29 inch Ultra U2913WM
NEW monitor Dell 27 inch 4K P2715Q
tripplite KVM model B004-DP2UA2-K (2 port displayport 1.2 4k kvm switch)
desktop video card  XFX Radeon R9 - 270x
laptop video built in intel
I was already using the kvm to swap the input from a laptop and a dell desktop to a Dell U2913WM monitor without issue.
The desktop PC is having this issue since I swapped the monitor to the P2715Q  4K monitor; the desktop icons all regroup to the upper left corner of the screen when I change the input on the KVM switch. This has also happened with a dell 4K S2817Q but this has never happened on the U2913WM. Everything else works fine on the P2715Q. The laptop is having no issues all icons remain in the same location on the screen.
The desktop is using a Radeon 9 270x and as stated it works fine with the U2913WM at 2850 x 1080 x 60
the desktop is using the 4k monitor at 3840 x 2160 x 60 and the laptop is setup the same but it is running the built in Intel graphics.
the newest drivers are installed on the desktop and the laptop.
I am seeking solution to the icon issue on the desktop PC, I cannot use the entire video desktop to setup icons every time I swap inputs to the monitor ands then swap back to the PC the icons are in the upper left corner.

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We have a large monitor (Dell 3007wfpt) connected to a Dell Precision M4800 laptop. The large monitor only works with DVI-Dual Link so we have a Display Port to DVI-D adapter (Accell UltraAV DP to DVI-D). The user of this machine was working in Outlook on this external monitor right after a fresh boot and noticed the mouse cursor was moving very slowly. Eventually the external monitor froze completely and the laptop monitor showed a BSOD whilethe external monitor showed the same frozen static windows/outlook image. I checked the crash files and noticed two dumps (although he only noticed one crash). Both dump files seem to point to a USB device. This Accell adapter uses displayport and usb (for power). Could someone check and confirm if this is the case through the dump files?

The only other USB devices is a Logitech wireless receiver and a USB hub/card reader that is built onto the Dell monitor. This usb hub on the monitor does not have anything plugged into it.

Thoughts? Could it be the monitor usb hub/card reader? Or the displayport adapter? If it's the adapter, then would an external powered usb hub be a fix for that? Thanks!

A:BSOD usb related, monitor hub or display port adapter?

Hi Rogue75.

First of all, Free up the startup. Windows does not need any other program to auto start with it, but the auto start programs often conflicts and causes various problems including BSODs. Otherwise, stop 9x9F cannot be successfully prevented.
Click on the Start button
Type “msconfig (without quotes), click the resulting link. It will open the System Configuration window.
Select the “Startup” tab.
Deselect all items other than the antivirus and the touchpad "Apoint".
Apply > OK
Accept then restart.
Next come to the BSOD. Do you use the webcam?
(c:\program files (x86)\dell webcam\dell webcam central\webcamdell2.exe)

Better you disable the webcam in device manager. See how it goes. Observe if there is any more BSOD after freeing up the startup items and disabling the webcam.

But, the webcam might be necessary for you. Search for any possible updates in Support | Dell US for your Dell Precision M4800. If any update to the webcam is there, apply it.

Report us for any further BSOD.

BugCheck 9F, {3, fffffa80113cba00, fffff80000ba2748, fffffa8013a14010}

Probably caused by : usbccgp.sys

Followup: MachineOwner

>[ 16, 2] 0 e1 fffffa80113cba00 00000000 fffff88004051fd4-fffffa8011558340 Success Error Cancel pending
\Driver\usbccgp ks!CKsDevice::CompleteDevicePowerIrp
Args: 00000000 00000001 00000001 00000000
[ 16, 2] 0 1 fffff... Read more

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Hi I'm new here and I have a problem. I recently followed instructions on a website to speed up windows xp and I disabled some service/processes. I wanted to know which process is used to connect an IBM Thinkpad R40 laptop with XP SP3 to an external TV. I tried several cables and monitors and tvs, but nothing works! It worked a few days ago. My lower palmrest and lower buttons were removed before this happened- could this be a cause? I already tried all the Display things and everything, but it doesn't work. My TV says 'PC' under sources, but then it just shows a black screen whenever I go on it and press FN and F7 and turn it on in the Display window. I also tried other monitors and they still don't work. PLEASE HELP ME THANKS A BUNCH

A:What service/process is used to connect to an external monitor/TV through DVI port?

Are you using the correct DVI cable (there are several configurations of DVI connectors).
See this: All About DVI

Also, avoid the use of a VGA-to-DVI adaptor -- they are very unreliable.

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I have a T450s and since I updated to Windows 10 I don't get anything out of the mini-display port. I have tried installing all new drivers and updating the BIOS per Lenovo's support website but I still can't get an external display to work over the mini-display port. Please provide a solution to this problem!
Moderator note: Post moved to T series forum.  Model added to subject.

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Thinkpad X230iI have an Acer R221Q external monitor. If I connect my Thinkpad to the monitor's HDMI port using the Mini Display port, in Windows 7, I get the dreaded blinking.If I connect from Linux Mint, everything works perfectly OK!!!!! Is there a solution for the Windows fault?

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Hi there, I have a spectre x360 which I am using with 2 monitors: 1 x 24in monitor plugged via HDMI - HDMI lead1 x 27in monitor pluged via mini DP - full size DP lead I have the laptop screen and the 2 monitor screens on at the same time - so effectivily im using a total of 3 screens. Everything works fine until the laptop goes to sleep. When I wake up the laptop, the laptop screen and the monitor plugged in via HDMI turn on. The monitor plugged in via display port doesnt wake up. The only fix is to unplug the mini displayport cable and plug it back in to the laptop - this wakes up the monitor. The issue with unplugging and plugging the cable back in is all the windows that I had opened get moved about and its very frustrating. Please advise how I can get the laptop to wake up both monitors. thanks    

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P50 / Windows 10 I get this message every time I dock the computer or plug in an external HDMI display. The Thunderbolt software is version which looks like the latest available. Any way to suppress this? Very annoying when presenting.

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I just got a new T480, it is doing great, I only had one question: When connecting a second display either by USB-C or HDMI, the display settings panel does not show the two distinct display squares that I am used to working with, it shows only one combined display: Display seting graphicThis does not allow me to set the two displays with thier different optimal resolutions.  This laptop is Win 10 Home 64 with the Integrated Intel® UHD Graphics 620 graphics.  Is it possible to have two resolutions or must they be the same (lower of the two)? thanks very much for any ideas,Fred

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I need to setup my laptop Toshiba U945-S4110 to be connected to the VGA input of a monitor display.
What do I need?

Is it enough for this HDMI to VGA active converter

http://www.amazon.com/1080P-Female-Video-Converter-Adapter/dp/B008279OJ6/ref=sr_1_4?s=electronics&ie=UTF8&qid=1392112034&sr =1-4&keywords=hdmi+to+vga+adapter

then a VGA to VGA cable

A:Need to connect Satellite U945-S4110 to external monitor's VGA-IN port

> What do I need?

Well, the notebook supports only the HDMI out port. This port sends the digital video and audio signal.

In case your external monitor supports only the RGB-in (VGA) port, you would need to use some kind of adapter/converter which would be able to convert the HDMI digital signal to VGA analogue signal.

I don?t know if the adaptor would work but you will not get the sound because VGA does not support the audio signal, only video.

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How can I get my Optiplex 990 to recognize the second display port. I bought the display port adapter for the HDMI to my second monitor and it still wont recognize it, and idea how i can get this up and running? I need both monitors for what im doing so this is really messing things up for me.

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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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I need to work with 2 screens displaying different documents,  Can I accomplish this using my HP Envy 15 Notebook PC-Model E1P05A.  If yes what hardware do I need?

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I ran a speed test on my new T480's USB-C port on an external SSD. I am using a Sabernet SSD external enclosure with a USB-C adapter. Inside is a m.2 SSD (not NVMe). I also tested the same SSD with a USB 3.1 adapter and the speeds are MUCH faster on the USB 3.1 than the USB-C port. I can post screenshots of CrystalDisk if needed. Any advise?

A:New T480 USB-C port SSD speed slow

Out of curiosity, when you say: "adapter," what do you mean? It is a whole new cable with the A and C heads? Or is it just a small block where you plug the existing USB-C cable into? The reason why I ask? Is it possible the USB-C cable is actually USB 2.0 spec (like a USB-C "charging cable"). Of course, if you are using the same USB-C cable in both instances, then I do not know what to do. There are two USB-C ports on your T480, maybe try plugging it into the other one?

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Will the T480 support installation of M.2 SSD 512GB using the WWAN port which in my case isn't being used and is currently empty?

A:T480: Installation of M.2 SSD 512GB using WWAN port

check this post :https://forums.lenovo.com/t5/ThinkPad-P-and-W-Series-Mobile/P51s-Using-WWAN-Slot-for-an-M-2-SSD/td-p...

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Anybody have this troubles?It's normal?The laptop did not fall. It just stood on the table and I worked on it. My left hand is just above the place that bends when i print. Video: https://drive.google.com/file/d/1WJ4mOAdKYiWwz3mIKAFnA0cs6svlSrG2/view?usp=sharing

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All, What is the speed of the Thunderbolt 3 / USB-C port on the Thinkpad T480, 10Gb/sec or 40Gb/sec.? Thanks,

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I searched the forums and the only posts involved the AMD card and I have an Nvidia card.  I couldn't find any information on the K4000M so I called tech support and they told me it was 2560x1600.  But then I found another forum where they said even the K1000M can do 4k.
I hooked up my 4k TV to the HDMI and used the Nvidia custom resolution to set up 3840x2160 at 30 hz and the display works.  The graphics look great, but the text is super fuzzy.  The TV supports 4K at 60Hz, but I'm not sure if the HDMI port on the back of my M6700 supports 60Hz.
Does the HDMI support 60Hz at 4k?  What about the display port?  Any idea why my text is super fuzzy while the graphics are razor sharp?

A:Precision M6700 Nvidia Quadro K4000M max resolution 4K monitor display port hdmi refresh rate

First, I'm going to refer you to this article from Nvidia discussing Ultra 4k Resolution.  The important statement is this:

The current HDMI 1.4 standard only has bandwidth for 4K at 30hz. HDMI 2.0 will add support for 4K at 60Hz. Details should become clearer in late 2013. There are a few TVs on sale today that support 4K @ 30Hz through HDMI.

Now, according to this review and article about the K4000m card specifications, it states that the card has HDMI 1.4 connections, which means it won't, theoretically, handle Ultra 4k resolution at the 60Hz bandwidth.
I also found this on documentation online about the Precision 6700.   

The Precision™ M4700 & M6700 incorporates HDMI version 1.4. Features

So, unfortunately, it doesn't sound like that card will support the higher refresh rate needed.   
As for Display port 

DisplayPort cables are much simpler to define: There’s just one type! The current version, DisplayPort 1.2, delivers enough bandwidth to carry video resolutions of up to 3840 by 2160 pixels at a refresh rate of 60Hz

So Display Port would be a much better option for you, if available.
I hope this answers your questions.

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Is there any way to connect my laptop and have that screen show on my pavillion 23 model 23-h110? im not sure if any of the ports are inputs. Thanks for the help! 

A:Connect laptop to display on touch screen monitor

Hi,You cannot connect your laptop to this AIO model. It doesn't have any standard video input pors.http://support.hp.com/in-en/document/c04485451RegardsVisruth

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The main screen of my tablet PC goes black as soon as I plug-in the VGA cable to a second monitor. I guess this is the result of me selecting an incorrect display mode for the monitor. The secondary monitor (A Samsung 1920x1200) complains of the video signal mode and does not display anything other than an error window.

The dual display mode worked fine before I made that mistake. I guess the resolution used for the secondary monitor is now incorrect. I would need to reset that value with the secondary monitor disconnected. That's what I am looking for.

Now when the VGA cable is disconnected, I get back the screen. I have looked at all display controls and the 945gm controls, but I had no luck restoring the secondary monitor settings.

I have tried booting Windows7 with the secondary monitor connected. I get both the main display and the monitor working in mirror mode when in BIOS mode, but I loose both as soon as windows7 is activated.

I would need some means to have windows7 reset the whole display subsystem.

Does anyone knows how to solve this issue.

Thanks for any clue.


PC is Motion LE1700, L7400 dual processor, 1440x1050
Secondary monitor is Samsung 1920x1200

A:Main display goes black when I connect VGA secondary monitor

I assume from your display resolution that you have a Samsung T260 ?

You can get the correct driver for it here;

Quite a few machines require that you switch them over to an external display. How this works ,varies from machine to machine.

You may also need to click on the desktop, "Screen Resolution", and choose "Extend these displays";

Regards....Mike Connor

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I have 3 monitors connected to an AMD HD5770 graphics card. Two monitors connect via HDMI, and the third through a Sapphire Active DisplayPort->DVI adaptor. Things have been working fine for years, but recently I started sleeping my computer when I am not using it during the day, as opposed to my previous habit of leaving it on all day and then shutting down at night, and a couple of days after starting this new habit, I received a 'Display Port Link Failure' message:

"The system has detected a link failure and cannot set the requested resolution and refresh rate on your DisplayPort display. Your display might not support the requested resolution or there may be an issue with the cable connecting the display to your computer"

Now, even upon resuming my normal habit of leaving the computer on and shutting down, the monitor will work sometimes but randomly stop other times.

How can I either fix the issues with sleep, which I would prefer since I want to save energy (a money issue rather than believing my actions make any difference to the environment), or if there is a problem somewhere, determine if it is the graphics card or the adaptor that needs replacing.?

A:Display Port Link Failure, Active Display Port->DVI

It could be the hardware is starting to give out. Not all problems are software related. Going to be hard to nail down if you don't have another cable. Could be the cable or the port.

Any way to test with a straight cable, not the adapter cable?

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I'm using a Dell U3415W monitor. My video card is AMD Radeon RX480. The monitor is connected via DisplayPort to my computer. The monitor is connected via HDMI to my work laptop. When I want to switch over to HDMI, it acts as if I shut off the monitor on the Displayport shifting everything over to my secondary monitor. It causes no problem, but drives me nuts because when I switch back over to DIsplayPort, I have to move my open programs around again. Is there any simple way to make this stop? If I don't use DisplayPort, and instead use HDMI/DVI combination, the behavior described does not happen. I'm guessing that is just the way it is, but I'm hoping there is an easy way to make it stop.

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On my 2 months old T480 ThinkPad, sometimes (happened 3 times so far) when I disconnect cable (type-c cable) from the docking station/box and then reconnect to the docking station/box (e.g. after a meeting) - following does not work:1) Does to connect to external displays/monitors.2) Showing charging (in windows 10 status/task bar), but actually does not charge (battery % is decreasing at very faster rate than normal battery usage).3) Doesn't connect to wired network on the dock box.However, the mouse and keyboard connected to the docking box works. Simple restart of the laptop did not fix the issue.I saw some where (lenovo support site) to disconnect the battery and and charger, and hold down the power button for 10-30 sec to do static reset, which fixes the problem.I am unable to reproduce this issue consistently, but happened so far 3 times, on this new-ish 2 months old laptop. (upgraded from T450, after 4 years without issue, that I was very happy with). Lenovo Service Request 4083JV6.But lenovo support was not able help/troubleshoot without able to reproduce this issue.But when this issue happens, the led light at the charge port stays red (not blinking, just red on), even when it is not connected to charger (or docking).So my question is what does it mean when red light at charge port always on?

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I use 2 monitors (see below). Both worked fine for over a year then the digital monitor suddenly went blank and the computer now has problems booting and displaying. Everything works fine when nothing is connected by HDMI. Both monitors work when connected as analogs (one at a time because I only have one pin connection).

I have confirmed:
There is no malware/virus on my computer.
HDMI cable is fine (I have 2 new cables, and switching cables doesn't change anything).
I think all drivers are up to date
Windows 7 Pro is up to date.

Computer:Dell Vostro 270s, Intel Quad Core i5-3450S CPU @2.80 GHz
Windows 7 Pro with Service Pack 1
Video card Intel HD Graphics FamilyMonitors:Samsung: SD24D300 digital
Dell E2011H generic PnP analogAny suggestions?

A:2 Monitor Display Suddenly Freezes Computer - Can't Connect Via HDMI

System Restore to a date prior to the issue - System Restore

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We have an associate who uses a T480, he has dual screens and we have an HDMI and USB C to Hdmi for his displays. Most of the time they are running fine, sometimes though the USB C one goes black, and he has to unplug and replug it back in. Then it wakes up, we have replaced his USB C adapter and cable to the monitor and it hasn't helped. Is there possibly some settings that turns off the USB C port after a time period? It's hard to pin point because it happens throughout the day. Any help is appreciated.  Thanks in advanced.

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