Losing HDMI signal when launching a game.

[Felix59]

Hello!

I have encountered a persistent problem when loading games, in which my display will suddenly go black and indicate "no HDMI signal detected". The issue has occurred across multiple games. The only solution is to hit the power button and force the computer to shut down. In some games I can reach and the menu and it only fails when I try to start playing (Valheim) while in other games (Bannerlord) I get to see the intro videos (Nvidia, publisher, etc.) and then I get the error message.

I've clean installed the drivers, re-installed Windows (11) and the issue still persists.

[Felix59 · Accepted solution]

After numerous reinstalls and stuff, I fixed the issue by using the other cables from the PSU to feed the GPU.

[Felix59]

Well, I rejoiced too soon. While I can now launch games, the issue presents itself a few minutes later. It seems like it's an overheating issue. What can I look into to fix it? No hardware changes on my PC, and it was working just fine about a month ago.

Thanks!