This one took me several days - but then ...
Under Firefox (both = ESR from the Debian repository and Flatpak) and Chrome (Flatpak), I observed stuttering/jumping video playback every few seconds - very visible in videos with flowing/floating shapes, e.g. fractal zooms or waves on the beach. The problem occurred not only on YouTube, but also on Amazon Prime.
After I then dived into a real “rabbit hole” with reference to hardware acceleration in the web browser (VA-API with the iGPU etc., use of my dedicated Nvidia GPU as an alternative to the AMD iGPU (Nvidia does not support VA-API as far as I know), I also noticed that locally stored videos played via “mpv” (also supports VA-API) showed the same behavior.
So nothing to do with the browsers.
Finally, I tried it with a live USB stick with Ubuntu 24.04 LTS (Gnome): no problems here.
Then I installed Gnome on my Debian 12.8 system in parallel to Cinnamon and was able to prove beyond doubt by switching back and forth: The problem only occurs under Cinnamon (on Xorg) but not under Gnome (both on Xorg and Wayland). => Migration to Gnome, uninstallation of Cinnamon.
For the sake of completeness:
My system = Laptop Lenovo Legion Pro 5 16ARX8 =
AMD Ryzen 7 7745 HX (with iGPU), second dedicated GPU is NVidia RTX 4060 Mobile.
Backports kernel 6.11.10 and latest firmware from GitHub due to other issues with WiFi and Bluetooth chips.
Under Firefox (both = ESR from the Debian repository and Flatpak) and Chrome (Flatpak), I observed stuttering/jumping video playback every few seconds - very visible in videos with flowing/floating shapes, e.g. fractal zooms or waves on the beach. The problem occurred not only on YouTube, but also on Amazon Prime.
After I then dived into a real “rabbit hole” with reference to hardware acceleration in the web browser (VA-API with the iGPU etc., use of my dedicated Nvidia GPU as an alternative to the AMD iGPU (Nvidia does not support VA-API as far as I know), I also noticed that locally stored videos played via “mpv” (also supports VA-API) showed the same behavior.
So nothing to do with the browsers.
Finally, I tried it with a live USB stick with Ubuntu 24.04 LTS (Gnome): no problems here.
Then I installed Gnome on my Debian 12.8 system in parallel to Cinnamon and was able to prove beyond doubt by switching back and forth: The problem only occurs under Cinnamon (on Xorg) but not under Gnome (both on Xorg and Wayland). => Migration to Gnome, uninstallation of Cinnamon.
For the sake of completeness:
My system = Laptop Lenovo Legion Pro 5 16ARX8 =
AMD Ryzen 7 7745 HX (with iGPU), second dedicated GPU is NVidia RTX 4060 Mobile.
Backports kernel 6.11.10 and latest firmware from GitHub due to other issues with WiFi and Bluetooth chips.
Statistics: Posted by JoeL999 — 2025-01-11 20:59 — Replies 0 — Views 24