Irregular playback in lubuntu/ubuntu 24.04



Hello,

Long time user of kodi (going back to the xbox days) and have hand built around 8 systems in that time. Once kodi moved to PCs, I have been using Ubuntu (maybe 15 years?). Even on lowly powered systems, I have always been able to get things to work flawlessly (I’m a retired programmer and Linux sys admin) as far as video playback is concerned. I have just bought a fanless N100 based system to run in someone else’s house. I have tried libreexec and that works flawlessly – video playback is perfect and smooth (I am really intolerant of frame rate mismatches between source and display as I used to work in the video decoding business). I have also tried lubuntu and ubuntu with oibaf’s drivers installed and flatpak’d tv.kodi.Kodi. Playing the same file produces no errors (no frames lost/dropped/skipped from the player debug pane brought up with ctrl-shift-o) and no errors in the logs that I can see (see below). What I am getting is what I can only describe as “micro jerkiness” like the same frame gets displayed twice or it could be that a frame is missed (but doesn’t show in the statistics) every second or two.

I recently upgraded the systems we have here to 22.04 and they too work flawlessly (all Intel video based).

This is a fresh install of ubuntu/lubuntu, install oibaf’s drivers and then install flatpak kodi. The reason I don’t just use libreexec is that the person wants to use this as their computer as well so wants to install a few other packages once the main 

Anyone with any ideas? 

Log file: https://paste.kodi.tv/owokukegud.kodi

glxinfo

Code:

p$ glxinfo -display :0 | grep oibaf
OpenGL core profile version string: 4.6 (Core Profile) Mesa 24.3~git2408150600.1f34eb~oibaf~n (git-1f34eb5 2024-08-15 noble-oibaf-ppa)
OpenGL version string: 4.6 (Compatibility Profile) Mesa 24.3~git2408150600.1f34eb~oibaf~n (git-1f34eb5 2024-08-15 noble-oi
OpenGL ES profile version string: OpenGL ES 3.2 Mesa 24.3~git2408150600.1f34eb~oibaf~n (git-1f34eb5 2024-08-15 noble-oibaf-ppa)