- Feb 17, 2022
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Hi all,
DisplayPort has stopped working, and it's been driving me bonkers for a year and a half now.
It worked perfectly for 3 years before then.
I assume the problem is not hardware, as when I boot the computer connected with DP only to my monitor (ASUS PG279Q, 144p 165Hz monitor with Gsync), I can see and navigate the BIOS screen. I can open up into safe mode.
As soon as I go into windows normal mode, all I see is "Display Port No Signal."
I can plug HDMI in and it works perfectly fine. I can use the displayport cable on a different monitor (an old samsung, 60Hz) and it works. But I need my ASUS monitor to work. And the ASUS monitor does work in bios, and safe mode, and normal mode with display drivers uninstalled.
I have tried both DP ports on my 1070 card, both work on BIOS/safe mode. I have tried a new DP cord. Unfortunately the monitor only has the one displayport input.
I have tried the power cycling tip that seems to be the only solution at all on the internet, unplugging absolutely everything - monitor, PC, waiting an hour, nothing works.
I have updated drivers for my monitor, for the 1070, for Windows, for CPU. I'm going crazy the amount of updates I've done. Every time is the same - I use DDU to uninstall drivers in safe mode, I reboot the PC in Normal Mode - and Displayport works. For about 3 minutes, when I assume Windows automatically downloads a driver in the background. So I disabled Internet, and normal mode works without a dispaly driver for as long as I want, but the instant I install an Nvidia Driver (whic is required to use my 1070 at high frame rates over displayport), it cuts to black with "DP No Signal".
I've talked on the Nvidia forums, where they suggested using DDU and installing older drivers, it doesn't work. I've done all the power cycling (believe me, its been a year and a half).
Does anyone have any solutions or ideas for what I can try? I've seen this issue multiple times over the internet, and people then get the "solution" of power cycling, which doesn't work for me.
The only other detail I think may be relevant is that the issue started after I started plugging my PC into my OLED tv. Im wondering if the multiple displays somehow resulted in some changed settings that makes Displayport not work in windows with the drivers. But if this caused issues, you would assume that resetting the drivers with a clean installation should reset all of that.
Please help I am going mad!!!
DisplayPort has stopped working, and it's been driving me bonkers for a year and a half now.
It worked perfectly for 3 years before then.
I assume the problem is not hardware, as when I boot the computer connected with DP only to my monitor (ASUS PG279Q, 144p 165Hz monitor with Gsync), I can see and navigate the BIOS screen. I can open up into safe mode.
As soon as I go into windows normal mode, all I see is "Display Port No Signal."
I can plug HDMI in and it works perfectly fine. I can use the displayport cable on a different monitor (an old samsung, 60Hz) and it works. But I need my ASUS monitor to work. And the ASUS monitor does work in bios, and safe mode, and normal mode with display drivers uninstalled.
I have tried both DP ports on my 1070 card, both work on BIOS/safe mode. I have tried a new DP cord. Unfortunately the monitor only has the one displayport input.
I have tried the power cycling tip that seems to be the only solution at all on the internet, unplugging absolutely everything - monitor, PC, waiting an hour, nothing works.
I have updated drivers for my monitor, for the 1070, for Windows, for CPU. I'm going crazy the amount of updates I've done. Every time is the same - I use DDU to uninstall drivers in safe mode, I reboot the PC in Normal Mode - and Displayport works. For about 3 minutes, when I assume Windows automatically downloads a driver in the background. So I disabled Internet, and normal mode works without a dispaly driver for as long as I want, but the instant I install an Nvidia Driver (whic is required to use my 1070 at high frame rates over displayport), it cuts to black with "DP No Signal".
I've talked on the Nvidia forums, where they suggested using DDU and installing older drivers, it doesn't work. I've done all the power cycling (believe me, its been a year and a half).
Does anyone have any solutions or ideas for what I can try? I've seen this issue multiple times over the internet, and people then get the "solution" of power cycling, which doesn't work for me.
The only other detail I think may be relevant is that the issue started after I started plugging my PC into my OLED tv. Im wondering if the multiple displays somehow resulted in some changed settings that makes Displayport not work in windows with the drivers. But if this caused issues, you would assume that resetting the drivers with a clean installation should reset all of that.
Please help I am going mad!!!
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