I started having this problem when I upgraded to a 3090 card, at first I thought I had a defective card and would have to go through the RMA process. However, when I checked the event log for errors, some errors pointed to the driver. So I started looking into these errors and found that many people were experiencing the same problem.
What I have determined is that the problem is caused by the Windows Timeout Detection & Recovery (TDR) process. In short, if Windows does not detect GPU response within a certain amount of time, Windows resets the GPU and for some of us, this results in loss of signal from our monitors. The default time is set to 2, you need to change this value to 10 or more in the registry.
Create a restore point before making any changes to your registry.
1. Type “run” (without quotes) into the Windows search bar.
2. In the command box that opens, type “regedit” (without the quotes)
3. With the Registry Editor open, navigate to: HKEY_LOCAL_MACHINE//SystemCurrentControlSet//Control//GraphicsDrivers.
4. On the right side of the screen (not the yellow folder side), look for an entry called TdrDelay.
5. Double-click it, select decimal and change the value to 10.
6. If the TdrKey does not exist, add the key by right-clicking on the right side of the screen, do not click on any of the entries.
7. Click New – DWORD (32-bit value)
8. In the field, name the key “TdrDelay” (without the quotes). If you press Enter before renaming it, simply right-click on the entry called /"New Value #1/" and select Rename, name it "TdrDelay" (without the quotes).
9. Now double-click TdrDelay and select Decimal (hint – the selection is in the Base window on the right).
10. Under value, change it to 10 and press ok. I set mine to 60 and had no problems.
Restart your system for the change to take effect.
If you update Windows and the problem reappears, you may need to repeat this process.
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