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[10.11.x] Broken Quicksync tonemapping #7802
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Originally created by @matuszelenak on GitHub (Nov 19, 2025).
Description of the bug
Since Jellyfin 10.11.x, transcoding with tone mapping using intel quicksync is broken, resulting in blocky/pixelated video output.
Example here with Edge of Tomorrow 4K HDR Mkv

The same setup steps with Jellyfin 10.10.7 work fine.
The configuration of HW transcoding:
I noticed, that the ffmpeg transcoding parameters have changed between the versions.
On 10.11.3, the parameters looks like:
whereas on 10.10.7 they are:
Anyone else with similar problems?
Reproduction steps
What is the current bug behavior?
The video output when tonemapping HDR content using QSV is blocky/pixelated
What is the expected correct behavior?
The output is a correctly tonemapped video
Jellyfin Server version
10.11.3
Specify commit id
No response
Specify unstable release number
No response
Specify version number
No response
Specify the build version
10.11.3
Environment
Jellyfin logs
FFmpeg logs
Client / Browser logs
No response
Relevant screenshots or videos
No response
Additional information
No response
@nyanmisaka commented on GitHub (Nov 19, 2025):
It's not our issue: https://github.com/strongtz/i915-sriov-dkms/pull/380
@matuszelenak commented on GitHub (Nov 19, 2025):
Did not think THAT could be an issue, thanks @nyanmisaka !