RxBrad1d ago

Looks like Plex promoted that Beta build to Stable that broke hardware transcoding whenever HDR tonemapping was enabled.

And yes, it's still broken.

https://forums.plex.tv/t/hardware-transcoding-regression-in-1-43-1-10561-intel-geminilake/937399

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Hardware transcoding regression in 1.43.1.10561 - Intel GeminiLake

Server Version#: v1.43.1.10561-69cc2fd8d Player Version#: Roku 9.4 build 12 With prior version v1.43.0.10492-121068a07, I could easily transcode a 1080p stream burning in ASS subtitles, even with other Plex detections running. After upgrading to 1.43.1.10561, the same stream stops playback with an error, “The server was not powerful enough to convert this video for smooth playback”. I reverted to 10492 and playback is smooth again. Hardware info: Mar 24, 2026 15:57:52.906 [140359939541816]...

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Show threadRxBrad

This might not work for everyone's hardware, but try adding CLDriver="icrl" to your Preferences.xml file for Plex, then update to 1.43.1.10611 again (or restart your Plex Server software if it's already installed).

After that, HW transcodes worked again on my i5-1145G7.

https://forums.plex.tv/t/hardware-gpu-quicksync-transcoding-broken-on-beta-1-43-1-10540/937145/87

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Hardware/GPU/Quicksync transcoding broken on Beta 1.43.1.10540

for anyone running into this, please install PMS 1.43.1.10611 and then set the hidden preference CLDriver to icrl. Let me know if this fixes it or not, if it DOES fix it please also let me know what model iGPU you are using (so that i can adjust the driver selection for your device).

Plex Forum
Apr 11 at 12:21amWeb