H.264 encoding issue for recording and streaming

[GP1975]

Hi,

Since recently, hardware accelerated encoding (NVENC H.264) has started to show issues for screen/game recording and streaming on the PC of my son (Win11 pro, i5-10400F 16 GB, RTX 3060 12GB, MSI M390 SSD). For recording, a flickering regular array of purple dots/squares is appearing, while a black screen appears for streaming. The issue is solved when switching to X264 so this appears to point towards a GPU/driver issue.

I have attached a still from a captured screen video. It happens in OBS, but also in Streamlabs and windows screen recording, which appears to confirm an issue with the GPU/driver.

There are no (such) GPU artifacts visible on screen while gaming or during other (heavy) use of the system. Also no issues in furmark; temperatures ok, fans ok,...

I have no idea for further trouble shooting this issue, can one of you suggest what to do further?

Many thanks

 

[PaiSand]

You should contact urgently the support of the brand of your GPU or NVIDIA support.
Of course you don't see it on screen because nvidia uses a separated processor for encoding.

 

[GP1975]

Thanks, did that already. Awaiting response