Plex Desktop on Linux (Flatpak) is not doing hardware acceleration

A recent update, unsure when, seems that vaapi-copy has started to work for me as the hardware decoder option.

Playback is a lot better with this enabled, however vaapi-copy is super inefficient and GPU load spikes up to 30-40% when it does the copyback between CPU and GPU memory.

I’ll play around with other options and see how it goes.

Just tested again and still not working on the Intel n100 igpu. Leaves a bad taste to see a major issue linger for months on end…

Hardware Acceleration is still unfortunately broken on the flatpak version of plex-htpc.

I have tried three different dgpus (intel arc a380, amd rx570 and nvidia rtx2080) and hardware acceleration does not work on any of them. Hardware Acceleration does work on on the Snap version of plex-htpc.

The Snap version has poor performance compared to the flatpak version due to how snaps work in general, and as far as containers are concerned… snap is the inferior option. It’s painful that I can’t use the flatpak version as there’s no hardware acceleration.

This has been the case for the entirety of this year, since I first noticed it not working in early January.
I update as soon as there is a new flatpak version in hopes that this issue will be resolved, but it seems all the flatpak updates are simply routine to support newer runtimes and contain zero fix for broken issues.

Flatpaks are supposed to be distro/platform agnostic, but for clarity my system is Arch Linux running KDE Plasma on Wayland. Video acceleration works on anything and everything I attempt to use it with except for this, so i’m sure the problem is with this specific flatpak.

There is also no way to get in touch with the maintainers of the flatpak version as they have disabled issues on the repo and I don’t believe they check the discourse.

Please, please, please fix this.

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