[Bug]: OBS QuickSync encoding issues with drivers 32.0.101.6127/32.0.101.6044 - 32.0.101.6130/32.0.101.6048

[maginhart]

Which component impacted?

Encode

Is it regression? Good in old configuration?

Yes, it's good in old version

What happened?

I'm using Intel Arc A380 in a separate pc for encoding purposes.
After installing 32.0.101.6127/32.0.101.6044 drivers the obs qsv encoding performance regresses.
Average time to render frame jumped from usual 2.5-3.0 ms to 10 ms with one local recording session. (QuickSync h264/hevc/av1)
The last three drivers have this issue.
Rolling back to at least 32.0.101.6083/32.0.101.5736 resolves this issue.

What's the usage scenario when you are seeing the problem?

Transcode for media delivery, Content Creation, Game Streaming

What impacted?

No response

Debug Information

No response

Do you want to contribute a patch to fix the issue?

None

[bai-isaac]

hi maginhart, which OS do you use?
This issue is for all codec(AV1/HEVC/AVC)?

[maginhart]

Windows 11 23H2 yes all codecs.

[maginhart]

I've launched fresh obs OBS 30.2.3 with only one scene element video capture device and started recording.
Bellow you can see the difference between drivers 32.0.101.6083/32.0.101.5736 and 32.0.101.6127/32.0.101.6044

obs_old_driver_2024-10-31 11-33-43.txt

obs_new_driver_2024-10-31 11-19-24.txt

[maginhart]

I've tried the latest driver 32.0.101.6297 still the same problem.