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X1 Extreme- Could not connect external monitor with USB-C Thunderbolt 3 > HDMI cable

Q: X1 Extreme- Could not connect external monitor with USB-C Thunderbolt 3 > HDMI cable

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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Preferred Solution: X1 Extreme- Could not connect external monitor with USB-C Thunderbolt 3 > HDMI cable

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.)


Last week I bought the Lenovo Ideapad 320-15IKB. So far I am pretty satisfied, but I'm having trouble connecting it to my external monitor with a HDMI cable. I've tried multiple HDMI cables, tried the monitor with another laptop and it worked fine, I also bought a USB-C to HDMI converter and that's not working either. So I don't think it's a hardware problem. In the picture I added you can cleary see the laptop detects my external monitor (LG IPS FULLHD) as the second screen, but on the monitor I get a "no signal message". I looked at all the topics similar to mine, but haven't found a solution yet. Anyone familiar with this problem? Thanks.

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Last week I bought the Lenovo Ideapad 320-15IKB. So far I am pretty satisfied, but I'm having trouble connecting it to my external monitor with a HDMI cable. I've tried multiple HDMI cables, tried the monitor with another laptop and it worked fine, I also bought a USB-C to HDMI converter and that's not working either. So I don't think it's a hardware problem. In the picture I added you can cleary see the laptop detects my external monitor (LG IPS FULLHD) as the second screen, but on the monitor I get a "no signal message". I looked at all the topics similar to mine, but haven't found a solution yet. Anyone familiar with this problem? Thanks. 

A:Can't connect external monitor to Ideapad 320-15IKB with HDMI cable

Hi, welcome to the forum.
My guessing on this are  will be:
1) Try the "Windows Key + P" combination, try the extend and duplicate to see if you get an image on the monitor.
2) You already tried different HDMI cables, it may be interesting to also check some other TV that  you may have arround to see if you get image. Also, if you use some apdater (DP to HDMI or other) it may be interesting to try some others.
3) Go to  the support site of the "Ideapad 320-15IKB" and update the BIOS and the Video drivers. Lenovo Vantage can also help you to have you drivers up to date.
After trying that, if you get no good results, maybe it is some hardware issue.

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I have a Thinkpad X1 Extreme (20MF000CUS) connected to two external 4K monitors via Lenovo Thunderbolt Workstation Dock (40AN0230US). Windows 10 desktop extends to all 3 displays.Everything works really well except for a major annoyance: normally I have a bunch of apps/windows I leave open on all 3 monitors. Whenever I put the laptop to sleep and I then resume it later on, all app/windows I left open are automatically resized, moved and stacked up on the primary (laptop) display. Is this by design? Anyway to prevent this behaviour?I noticed that the laptop display is handled by the Intel graphic card while the two external displays are handled by the nVidia graphic card. Could this be the reason?

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Hi. My second external monitor (Lenovo ThinkVision LT2452pwC) connected with T570 via thunderbolt-dp cable (the first is connected via HDMI port). Once 2nd monitor stopped working and I had to push hidden button on the bottom of laptop. After that all started woking good. But today 2nd monitor stopped working agian and I tried all my past actions but it sill not working. Maybe it depended on Windows or thunderbolt drivers? (Cabel and monitor are OK I checked)

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Hi,Background on Issue I've had the Thinkpad X1 Yoga 2nd gen (product # 20JDCTO1WW; BIOS version N1NET46W 1.33) since it came out. It's running the latest build (non-targeted channel) of Windows 10 Pro with all Windows updates and all Lenovo System updates installed (through Lenovo Vantage app), as of this writing.The laptop has only professional/scientific software installed and it's strictly used in a work setting in a climate-controlled office (i.e. no exposure to extreme heat/cold, humidity, dust, etc.) (scientific/professional software like statistic analysis software, Office, browsing company websites and other non-entertainment professional sites, etc.) and there have been no system registry modifications, no 3rd party driver installation, or anything outside of the normal functioning of the system. Windows has never been re-installed/reset from the factory-shipped condition, and I haven't even accessed the BIOS for the first time since it was purchased. There's > 250GB free from the 1 TB SSD, and RAM utilization never reaches > 50% even on the heaviest of workloads. IssueUp to Win 10 OS build 1607 back in 2016-2017, everything was running well. After installing builds 1703 and then 1709, and still now after the 1809 update (updated a couple of months ago, but nothing changed with that update), when I connect the laptop to external monitors (either to one or two 27-inch, 60-Hz 2K monitors [AOC Q2781PQ] outputting at 2K resolution), either... Read more

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I already typed something here, since I thought it is related:https://forums.lenovo.com/t5/ThinkPad-X-Series-Laptops/X1-Carbon-6th-gen-BIOS-update-broke-external-... Pulling Thunderbolt cables was fine. After a while:Pulling Thunderbolt cables gave me 1 in 3 cases a bluescreen (internal power error). I did a BIOS / Thunderbolt / Driver update on 21th of May 2019. Everything was fine, restart worked. Went to work, this time, turned into standbye before pulling the cable. Everything was fine. At home, I opened the Screen after getting out of Sleep (old Linux Standby), saw the welcome for a short moment, and than bluescreen again.  Reboot, ... freezes in BIOS. Directly at the "Lenovo" Splash screen, before having the chance to put on the finger on the fingerprint reader.Super laggy. Tried EVERYTHING mentioned in this forum, enabled/disabled all settings in BIOS, had to reset with the button in the bottom with a paper clip, tried to deactivate internal battery. By a chance of 1 in 4 I could get into the BIOS or select a boot media.  Lenovo hardware test says, that everything is fine. Have been many times, close to a brick, since it hangs directly after pressing the power button. By chance could boot, made a backup. HDMI is also not working. Does not recognize any thunderbolt devices. Flashed old BIOS version, no difference.  What makes a difference: completely disabeling thunderbolt in bios. Than BIOS/booting works like a charm, b... Read more

A:X1Carbon6th, Pulling Thunderbolt cable broke Thunderbolt CHIP, BIOS is freezing, HDMI not working.

For me it sounds like the Thunderbolt Chip or Firmware is broken. Similar to the more popular bricking of Yogas, P51, before. I maybe could flash it manually like discribed here, but I guess, this is against warranty regulations: https://posts.nadim.computer/2018/10/26/repairing-a-thinkpad.html  

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I have a video card with both a DVI and an HDMI output and a monitor with only an HDMI input. Should I connect my monitor to my PC with an HDMI cable or with a DVI - HDMI cable?

A:Should I use an HDMI or HDMI-DVI cable to connect to my monitor?


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Hi all,

I'm a bit desperate so I came here hoping to find some answers.

So I wanted to connect a second monitor (which is a TV screen) to my PC to watch movies, but suddenly my PC wont send any signal to my TV, so I tried connecting all kinds of HDMI cables to all kind of TVs/monitors laying around in the house, and my conclusion is that whenever I tried to connect a second monitor with HDMI directly to my PC it wont show anything and it also doesn't show up in my Display settings on my PC. So from what I can tell the problem lays with the PC itself (within windows probably).

I have up to date display drivers so that is not the problem.

Also something worth mentioning is that my main PC monitor is connected with DVI, and the DVI connector works just fine on every device.

Hope someone can help me find an answer soon!

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I can't connect an esternal monitor to my laptop, no signal is sended to the monitor. With Windos 7 i didn't have problems. May I need a driver?

A:I can't conncect an external monitor by an hdmi cable in Win...

Yes check device manager and see what display adapter you have. If it is Microsoft Basic, you will not have any advanced function like HDMI output. In other words, you might need a video driver. 

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Going nuts trying to get a new ASUS external monitor to work via HDMI cable with my Dell laptop. The Intel Graphics control panel recognizes the connection to the external monitor, identifies it correctly by brand and model, and allows me to adjust all the settings I would expect: refresh rate, resolution, output to clone/extended/laptop only/monitor only, etc. I can even move the mouse over to the extended monitor, take a screenshot, and see what the laptop 'thinks' it's displaying to the monitor. It's just that the monitor is blank, telling me "HDMI1 (or HDMI2) NO SIGNAL".
Here's what I know / have tried

Dell Inspiron 15R 5521
Windows 10 with latest updates (just yesterday in fact)
ASUS VE 278 LCD monitor
Graphics Driver is Intel HD 4000 v10.18.10.4653
I have uninstalled the above driver, deleted driver files, downloaded new files from Intel's website, and reinstalled the driver
I've verified that the HDMI cable and ASUS monitor are functioning properly by attaching them to a different laptop
I've verified that the Dell laptop in question has the same problem with a different external monitor
I have not verified whether or not the Dell laptop in question will successfully display to an external monitor using a VGA connection (I'm ordering an HDMI-VGA adapter after I hit 'post' on this post.)
I've tried every combination of power off/on, reboot, plug cable in, turn monitor off/on. Dozens of times. To the point that m... Read more

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Hi I am facing issue with my Laptop (Pavilion G6 model) unable to connect monitor with HDMI to HDMI

A:Unable to connect laptop to monitor with HDMI cable

Hi @Raju_sreeman,Thanks for becoming a member of the HP Support Forums. I understand you are having an issue with connecting the computer to HDMI monitor. I will be glad to help you.Please post the full product number of your computer. See the following, if you need help with that information.How Do I Find My Model Number or Product Number? Please get back to me with above information, so I can help you better.

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Hello all,
    I have a question about my laptop (Dell Latitude 7480). My laptop randomly freezes after starting the laptop. It takes around 1-5 minutes to freeze, and I can't do anything about it. After a while, I found out that if I'm not plugging the laptop to an external monitor through the HDMI cable, it will cause this happen, but if i plugged it in, it works perfectly fine.
    Has anyone facing this issues and fixed it in the past?. This issue is really annoyed me very much because I cannot work without an external monitor.
    My guess is that something happened with my graphic card? Do I need to change the laptop or is there any other way to fix it?

Thank you very much for your answer, very appreciated.

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Hi - I am not able to connect an external screen to the laptop. Nothing happens when I connect the screen to the laptop. Screen says: no signal. Laptop does nothing. Mirring says didn't found another screen. Might be realted:Ther is an error in Device Manager: ISB-IF xHCI USB Host Controller has an exlamation mark in a yellow triangle. Thanks,Zoltan 


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Hello, which Thunderbolt 3 dock is recommended for the X1 Extreme with 4K screen? I plan to connect the following items to the laptop via the dock: 1. A 4K TV running at 60Hz with Chroma 4:4:42. logitech 's Unifying Receiver for the logitech mouse3. a usb 3.1 external ssd4. a soundbar: https://us.creative.com/p/speakers/sound-blasterx-katana5. perhaps something else I also hope that the dock could fast charge the X1E. Thanks.

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I have a Yoga 11s that started having hdmi connection issues about a year ago and has recently quit connecting to an external monitor via HDMI completely. We tried upgrading to Windows 10 to see if that would overwrite any software issues - no luck. The HDMI port actually appears loose. I did an extensive search of the forum and found posts that recommended cutting down the rubber around the base of the hdmi cord - tried that and at least I had a little activitiy - in the upper right hand corner of the external monitor up popped a box that says DVI then VGA then HDMI - but then says No Signal. Tried the graphics card update recommended on a post from long time ago and a popup indicated I had a newer version already installed. I have taken it to a laptop repair place - said they couldn't get parts from Lenovo. I found an "authorized" Lenovo repair shop locally - when I called they said they only work on business machines Called Lenovo and they told me to take it to Best Buy - however since I purchased this directly from Lenovo, Best Buy said they can't work on it. I would rather not send it into Lenovo because they tried to charge my hubby hundreds of dollars when his 15 day brand new laptop quit working, claiming damage - luckily extensive pictures taken and dated prior to sending it in thwarted that attempt at extortion. Does anyone have any suggestions? I need to be able to do presentations and work remotely with this so it is no... Read more

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Anybody know?
I bought a USB 3.1 Type C Male to HDMI Female Micro USB 1080P Adapter Cable but it didn't work - nothing on the display in my Dell U3415W monitor, nothing on my projector either (windows 10 doesn't detect an external monitor).  Anybody got any ideas?

A:How to connect xps 13 9550 to external monitor or projector with HDMI

Apparently no all USB 3.1 Typce C cable is compliant. There's a guy on Amazon who works for Google whose reviews you should find.

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Hallo all!Please Help!!!i'm trying to connect my new Lenovo Yoga 730 i15" i7, and i'm trying to connect it to an external monitor via the HDMI port using a standart HDMI cable but it won't work! i've seen there is issues regarding...is it not possible at all?btw- i'm trying to connect to samsung monitor and it worked fine with my preivious YOGA 3.what should i do?thank you very much ...

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Hello, I can't connect my laptop (Asus with nvidia graphic card, windows 10) to an (old 4/3) Lenovo  monitor (model L1700PC) using an HDMI/DVI cable : it does not work (no signal on monitor) :- if I try to connect my laptop to other monitors (4/3 not Lenovo  or recent 16/9 not Lenovo) with the SAME cable and input/output, it works.- if I try to connect an other laptop (Lenovo) to this Lenovo monitor, it works too (always with same cable, output/input). I tried to solve the problem with ASUS support and nvidia support but they didn't find any issue.... :-(The drivers for the graphic card is up to date. Any idea ?Thank you  for your help.

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Hello there if your reading this thread,
Recently I got my old laptop out of my loft and it had a broken screen but working perfectly before. Today I tried to connecting it to a external monitor via hdmi and it didn't work and I tried vga as well and it didn't work. I wanted it by HDMi because it's high definition, I need some help trying to connect it to the monitor. I tried connecting it to other monitors however it still didn't work. This is the first time I attempt to connect this laptop to a monitor. The model name is Satellite C50D-B-120.
If you have a solution please comment it here or (I'm sorry to waste your time) contact me on Skype : matinadams123

thanks for reading,

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Hi Dell Community,
Please help me to diagnose what is wrong with my new laptop.
My Laptop is Dell Latitude E6440 but every time i connect external monitor to my laptop HDMI port via HDMI to VGA converter, the external monitor always blink randomly every couple of seconds. This HDMI to VGA converter is working fine when i used it to other laptop.
Currently i still don't have chance to try my laptop HDMI port to connect directly to HDMI monitor because i don't have it.
Are there anybody have the same problem with me? thanks for your help.

A:Latitude E6440 display blink when connect to external monitor via hdmi to VGA converter

Hi M. Zemmy Indrapatih,
Thanks for your post.
Sorry you are having difficulties with your laptop and monitor.  If you could send me the name and model cable adapter you are using and the name and model of the monitor,  I might be better able to understand the issue.  Thanks

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Good Day all,

So I could use some advice.. Im really stuck on why I cant get it to do what I want and not sure what my best solution to solve..

I have a laptop I am out putting video signal to a hdmi splitter box (which is power boosted to ensure no signal loss) to a monitor and to a tv (thats more monitor than tv) . The signal going to the 2nd monitor and tv arent 1080p which is what I would like it to be. I currently am using the thunderbolt output to the splitter and then hdmi to both monitor and tv.

I do have the ability to output via HDMI but thought that thunderbolt was better (I could be wrong of course)..

Im looking to have 1080p at both monitor and tv.

Here is the hardware I am running

ROG G750JH Laptop (http://tinyurl.com/y6f5or5v)
(Minor changes to laptop, its running a 500gb ssd, 750 hd, and currently 16 gig of ram, but will be upgrading to 32 very soon)
Splitter box (http://tinyurl.com/yylqsty7)

Sorry, dont have the monitor / tv info at present, but will post that tonight if possible.

So whats my best option to output 1080p? I would very much like to not have to spend a lot of money if possible. Just looking for advice and options at this point..


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So I'm looking into buying a VR system. however they require a very strong computer, and those can be very expensive. I found the Wolfe Laptop Supercharger, and it boosts your computer through an external source. The problem is that it uses a thunderbolt connection to connect to your computer. I'm trying to find anyway to use it on my current laptop, before going out and buying a new apple computer. I currently have the HP Pavilion 15 - ab200 Notebook (touch) and need an adapter or dock to be able to connect it to a thunderbolt cable. Any information helps, thanks. The wolfe website is https://thewolfe.io/ 

View Solution.

A:Is it possible to connect a thunderbolt cable to a HP Pavili...

Interesting. No. Your laptop has no port to which you could attach anything that would convert to Thunderbolt 2 or Thunderbolt 3. If you tried to connect to USB 3.0 for example, then you would be choked by the bandwidth of the USB 3.0 which is less than Thunderbolt. It has to be a laptop that has a Thunderbolt port natively. 

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Hi, I try to connect my two HDMI displays to one USB C port (of my brand new Lenovo P52s), with the WavLink Thunderbolt 3 to Dual 4k HDMI Adapter.Currently only one display gets the signal. When I disconnect the working display, the other display gets the signal.So for the moment, I can only use one at the time.I found an explanation on internet about ThinkPad Thunderbolt 3 Dock Setup, explaining that I should make changes in the BIOS setup:change Thunderbolt in BIOS Assist Mode to enabledchange Security Level to No SecurityIs this indeed the correct way to get it working?Thanks a lot for your advise!

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Since TB16 is so way out of my budget, I decided to do the following setup to get a triple monitor setup on my XPS 15 9560.

a) HDMI output to one 1080p monitor
b) Thunderbolt3 to 2xDisplayport Adapter, then connect one 1080p monitor and 1024p monitor

Thunderbolt3 to displayport adapter only worked with Active HDMI to Displayport converter. But, if I connect all monitors at the same time, only two monitors will show up. So, either outputs through HDMI and one of the thunderbolt3 port, or two of the thunderbolt3 ports.
Is there a way to get around settings to enable 3 external displays at the same time without purchasing TB16?

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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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I have two Apple laptops running well on an Airport Extreme wireless network. I am trying to connect a Dell Windows XP Service Pack 3 to the Airport via a USB to Ethernet LAN cable directly to the Airport for internet access. The Times Warner cable guy hooked it up and it accessed the internet just fine. I have since reformatted and reloaded Windows. I have not changed any of the cable connections. I have tried the Windows Network Wizard and the Airport Utility (which cannot detect the Airport). Windows says I have a "LAN or High-Speed Internet 1394 Connection" connected. However, Windows cannot find any internet access. The cable guy had it hooked up and on the internet in just a couple of minutes. Before I reformatted I noticed another connected network, not the 1394. Please help me get the Dell on the Airport via USB to Ethernet LAN cable for internet access. Thanks in advance for your help.

A:Connect Windows PC to Airport Extreme via Ethernet cable

Install the chipset drivers from your Drivers/Resource CD or, better, from Dell's web site. Use your Service Tag for easier searching. Then check in Device Manager to see if there are still more missing drivers.

EDIT: You probably need the driver for the USB ethernet adapter also.

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My XPS 8700 doesnt have a NVidia HDMI port. What  are my options to fix this if I want to connect to my monitor using an HDMI cable (without using adapters of course)? Is there a way to connect to my monitor via the HDMI port located in the middle left of the model? What is the latter HDMI port used for if it cant  connect to a tv/pc monitor? 

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(1) external monitor connected via Thunderbolt 3 Workstation Dock/Thunderbolt 3 Dock Gen 2 - Type 40AN. External monitor set as primary.All drivers/firmwares updated to the latest versions. Following the latest (Aug-Sep 2019) updates, the following problems appeared:BSODs every now and then, reported as related to dxgmms2.sys. Always while trying to start a movie on Netflix (external monitor).External monitor randomly goes blank (only rebooting gets it back on).Thunderbolt software window pops up on every boot. Boot time considerably longer than it used to be.Only once so far, could not boot (screen stuck on red Lenovo and "Hit Enter to interrupt..." message). Shut-down and restart fixed it. Any possible fixes on these?

P52, 8850H, P2000, W10pro 1903

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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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Wondering if anyone has come across this problem before. I have a brand-new X1 Extreme (bought in March) and a 4-year-old Dell 27" 4K monitor. In the last few days, I've had really low fps when using the monitor, while the built-in display works fine. This is all at the Windows desktop, ie not games or anything that should be super-demanding. Some more details:Laptop is running Windows 10 Pro 1903, fully updated, and there are no problems in Device ManagerThe resolution is 4K, 60Hz refresh rate, connected to a Thunderbolt port via a DisplayPort-USBC cableI had the same problem when I tried connecting with HDMI (which only gets me a nominal 30Hz refresh rate because the monitor only supports an older HDMI spec, but the actual fps I get is way less than that ? maybe 10-15fps)Switching between TBolt ports doesn't helpSwitching to a different monitor also doesn't help, suggesting the problem is with Windows and/or the laptopInterestingly, if I duplicate the display on both laptop and monitor, then the problem goes away. It comes back when I set Windows to display on only the monitor.The monitor was mostly working fine before this. I say mostly, because it's had problems for years relating to waking up from sleep; I'll often have to unplug it from the wall and plug it back in again for Windows to see it. But once it was running, it was okay. 

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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'm trying to connect 2 external monitors to my Thinkpad X1 Extreme but only 1 will display at a time.  I can plug each one in individually and they work fine but once I plug 1 in via USB-C and another in via HDMI only the USB-C one will display.  **bleep** I doing something wrong? Is there a special settings I **bleep** missing somewhere?  Please advise.

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Dear all, I'm new to this forum and would appreciate your advice on the following. I've always had ThinkPads. I recently got a Macbook Pro 15" 2017 for work and it's super smooth in daily operation when  connected to an external 4k monitor. I'm keen to replicate the smoothness as I hate the visual lag of the cursor etc. in my older T460s when connecting it to the 4k monitor. I like the X1 Extreme because it has longer battery life than the P1. However, I'm concerned that the X1 Extreme's graphics card won't be up to the job of a smooth display on a 4k external monitor. Am I right in saying that the X1 Extreme's GeForce GTX 1050 Ti is NOT up to the job of running on a 4k external monitor smoothly in everyday operation? If yes, will it be solved by the GTX 1650 Max-Q that's in the X1 Extreme Gen 2?If I'm wrong and the graphics cards above are actually fine, please help me understand what I need to make sure I order so that the laptop runs on a 4k external monitor smoothly. I cannot stand the lag in ordinary operation.BestNamir

A:Your advice: X1 Extreme vs P1, external 4k monitor etc.

I should have added:The 4k monitor that I will be connecting my new Thinkpad to is the BenQ PD3200U.

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Bought HP Pavilion desk top (DVI only) with HP Pavilion monitor 3 years ago.  Monitor failed.Replaced monitor with new HP Pavilion.  But cannot connect as new monitor has no DVI input.Please can you confirm which cable I need to buy to connect DVI PC to HDMI monitor? thank you

A:which cable for dvi pc to hdmi monitor?

You can purchase a DVI-HDMI adapter from computer store. You can check the link below or try in any computer stores. https://www.walmart.com/c/kp/hdmi-to-dvi-adapter

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Hello Everyone,

Couldn't find any help anywhere, so i am trying here.

I have my laptop plugged via HDMI cable to my Phillips flatscreen. The sound have always working fine, until recently, i had the TV plugged in the same time as my external soundcard (Lexicon Ionix u22, i'm a music guy).
It both played at the same time, and when i went and set the external soundcard as standard sound, the tv sound has stopped playing sound whenever the HDMI cable is in. The TV sound works fine when i'm watching tv. I have tried to push the test button, but there is no sound what so ever.

Any thoughts on how to solve this issue?


A:HDMI Cable & External Soundcard Problem

When the TV is connected, you will have to change the default audio output to the HDMI audio chipset.

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Hello everyone!!
When I connect the PC with the HDMI cable (video card port//gtx760) to the TV, it doesn't detected it and brings me this message: "This source is not connected. Check the connection status."
Instead if I connect the HDMI cable to the PC (through motherboard port) the TV detects the presence of the cable, but without working (and if it did, however, the resolution would be bad).
So my question is: why the TV does not detect the PC while is connected through the HDMI cable? And what can I do to fix it?
Thanks in advance.

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Purchased a HP Pavilion 15t for my son for Xmas and trying hooking up a Dell U2412M as his main gaming (2nd) display but Windows (10) does not recognize it.  I set the input source on the display to both "Auto Detect" and "Display Port", but neither had any effect.  No matter what I attempt, the system does not detect the Dell display.I have a brand new HDMI to DP cable, but I have no good way to test if the cable itself is bad, but I'd like to think that is not the problem.I have searched the internet for hours, but have not found a solution that has worked.  Sound familar to anyone?I have a Nvidia 960M and I have recently updated all the software/drivers.

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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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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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My laptop is a Compaq Presario F504EA. I have had an external 19" LCD Monitor running sometimes in parallel and sometimes independantly with the laptop. It has its own Power supply, and is only connected to the laptop through a VGA cable.

I was wondering if this could cause the laptop to extremely overheat. With this, the laptop would be un touchable on the bottom side due to extreme heat.

I had also recently upgraded my ram from 1 to 2GB. Would this of had an effect on the heat aswell ?

It is currently in repair due to my keyboard being intermittent along with my wireless; i believe the heat as melted joints or something on the motherboard.


A:External Monitor, extreme heat issue

when was the last time you spray dusted the laptop, that should help the heat issue. but adding more ram should not cause any more than normal heat, the extra monitor might cause more heat cause of the extra power going through the video card, but it should not make it untouchable.

i would try to spray dust the vents and also check to make sure all the fans are working.

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Hey there,

my old 2nd monitor is about to die (see: Solved Dual screen issue, 2nd screen turns black ... - Windows 10 Forums) so i got a replacement. Now i figured thats this monitor is able to run 120hz and i sure as hell wanna use that.

But i remember i did read stuff about hdmi not being able to support 120hz, but i also got told its just the other way around. Now the internet seems to be in the same boat as me, since i do only find split answers. Nevertheless hear i am asking for help (again).

Wich cabel should i use? HDMI or DVI-D?

Monitor: Asus VG236HE (VG236HE | Monitore | ASUS Deutschland)
Graphiccard: Gigabyte 970 GTX

Thanks in advance for the help <3

If that ain't the right forum for my question, feel free to move the topic as you please

Cheers Smallfoe

P.S.: i'm thinking about getting a third monitor .. how exactly am i going to connect them all onto one card? gosh im such a newb

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Hello. My computer's HDMI cable recently broke,so I tried to use the HDMI cable from my playstation four, and that didn't work either. I later went to Wal-Mart to buy a brand new HDMI cable, and that also didn't work out. Ive tried turning the computer on and off and that hasn't worked. Any information helps, thanks!

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A while back I tried connecting my HP G72 laptop to my LG E2750 monitor using an HDMI cable instead of a VGA cable. The picture quality was awful. Text that looked fine bordered on unreadable, images that were sharp and clear had an ugly fuzzy appearance. Is this to be expected using an HDMI cable to connect a monitor?

A:LG E2750 Monitor and HDMI cable

it'll be your res settings, for something like that.i'd say disable laptop display and check and change ur settings for the display.

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