Thanks @pshanew, it looks like the flatpak install solves some of the issue, plex-htpc frame rates seem to be much better and lower CPU. Although the ctrl-shift-D debug screen still shows hardware decoding as “no”, so something still not right. Logs confirm software decoding is happening.
Feb 24, 2025 23:26:21.416 [139700064990912] DEBUG - [MPVEngine/mpv] vd: Container reported FPS: 23.976024
Feb 24, 2025 23:26:21.416 [139700064990912] DEBUG - [MPVEngine/mpv] vd: Codec list:
Feb 24, 2025 23:26:21.416 [139700064990912] DEBUG - [MPVEngine/mpv] vd: hevc - HEVC (High Efficiency Video Coding)
Feb 24, 2025 23:26:21.416 [139700064990912] DEBUG - [MPVEngine/mpv] vd: Opening decoder hevc
Feb 24, 2025 23:26:21.416 [139700064990912] DEBUG - [MPVEngine/mpv] vd: Looking at hwdec hevc-vaapi...
Feb 24, 2025 23:26:21.416 [139700064990912] DEBUG - [MPVEngine/mpv] vd: Could not create device.
Feb 24, 2025 23:26:21.416 [139700064990912] DEBUG - [MPVEngine/mpv] vd: Looking at hwdec hevc-vaapi-copy...
Feb 24, 2025 23:26:21.417 [139700064990912] DEBUG - [MPVEngine/mpv] vd: Could not create device.
Feb 24, 2025 23:26:21.417 [139700064990912] DEBUG - [MPVEngine/mpv] vd: Using software decoding.
Feb 24, 2025 23:26:21.418 [139700064990912] DEBUG - [MPVEngine/mpv] vd: Detected 4 logical cores.
Feb 24, 2025 23:26:21.418 [139700064990912] DEBUG - [MPVEngine/mpv] vd: Requesting 5 threads for decoding.
Feb 24, 2025 23:26:21.425 [139700064990912] DEBUG - [MPVEngine/mpv] vd: Selected codec: HEVC (High Efficiency Video Coding)
Feb 24, 2025 23:26:21.432 [139700064990912] DEBUG - [MPVEngine/mpv] vd: DR failed - disabling.
Feb 24, 2025 23:26:21.482 [139700064990912] DEBUG - [MPVEngine/mpv] vd: Using software decoding.
Feb 24, 2025 23:26:21.482 [139700064990912] DEBUG - [MPVEngine/mpv] vd: Decoder format: 1920x1080 yuv420p10 bt.709/bt.709/bt.1886/limited/auto CL=mpeg2/4/h264 crop=1920x1080+0+0
Feb 24, 2025 23:26:21.482 [139700064990912] DEBUG - [MPVEngine/mpv] vd: Using container aspect ratio.
Frame rates have also improved and visuals are much smoother. Some of the processes seem to be using a lot of CPU even when idle though. Not sure why.
I hope the developers see this and can update both the snap distribution and flatpak.
