I’ve been using Mint on an old PC for a while and I recently switched over to Bazzite and upgraded the graphics card. After days of troubleshooting I finally got the video to output to my TV and monitor. The monitor works fine on the HDMI but the GPU and TV couldn’t figure how to talk to each other, so I would either get no video or the resolution would be locked to 480p 4:3. The fix was to use a DP 1.4 to HDMI 2.1 connector for the TV and HDMI directly to the monitor and now I can get at least 1080p 16:9. But now I have the problem that the PC won’t detect audio on the TV. Old GPU worked fine with video and audio.

Reddit suggested reinstalling Bazzite with the TV connected as the primary display.

The old GPU was a MSI rx580, new GPU MSI rx 6750 xt. PC is Dell Precision T3600

Monitor Dell 27in and TV is a Sony 65in OLED

Any help would be appreciated

  • bruce965@lemmy.ml
    1·
    1 hour ago

    I have some experience with Linux, but I had to use an AI to look for potential solutions. I apologize for that. I extracted some suggestions that seem to make sense to me (reference).

    1. Run aplay -l and wpctl status to see if Linux detects any audio device on the TV’s port.
    2. Try to add amdgpu.audio=1 to kernel options during boot. You can press ESC during boot to show GRUB, then press E to change the kernel options, add that, and finally continue booting. If that works you can make it permanent with sudo rpm-ostree kargs --append-if-missing="amdgpu.audio=1".
    3. It could be that the DP to HDMI adapter is passive/video-only and not passing audio at all. Test with another source device to confirm.