Hey folks,
Been using Bazzite for over a year on this old system (4th-generation i3, 8GB memory, RX570). After the most recent update (which brought me to the 20260907 build), I can see my AV receiver is struggling to negotiate HDMI audio. From the OS-perspective, everything LOOKS perfect. In Game Mode, I see one audio device, the HDMI device, and I can flip between stereo, 5.1, and 7.1. In desktop mode (and in the terminal), alsamixer doesn’t have anything muted, the volume control shows me the audio meter thingy bouncing around with audio on the HDMI output, all is well. But on the little LED screen on the AV receiver, I see "HDMI flicker on and then disappear, and if I watch it long enough, I can see the 5.1 speaker symbols flicker on occasionally. So it definitely seems to be an HDMI negotiation thing.
dmesg is giving me this:
[67363.380389] HDR SB:01 1a 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[67363.380396] HDR SB:00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[67363.381210] HDR SB:01 1a 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[67363.381215] HDR SB:00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[67363.381686] HDR SB:01 1a 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[67363.381689] HDR SB:00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[67363.382425] HDR SB:01 1a 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[67363.382430] HDR SB:00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[67363.462452] amdgpu 0000:01:00.0: [drm] REG_WAIT timeout 10us * 10 tries - program_formatter_reset_dig_resync_fifo line:647
[67366.491510] HDR SB:01 1a 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[67366.491515] HDR SB:00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[67366.563021] amdgpu 0000:01:00.0: [drm] REG_WAIT timeout 10us * 10 tries - program_formatter_reset_dig_resync_fifo line:647
[71791.771928] HDR SB:01 1a 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[71791.771942] HDR SB:00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[71791.850228] amdgpu 0000:01:00.0: [drm] REG_WAIT timeout 10us * 10 tries - program_formatter_reset_dig_resync_fifo line:647
[71814.183218] HDR SB:01 1a 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[71814.183223] HDR SB:00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[71814.268218] amdgpu 0000:01:00.0: [drm] REG_WAIT timeout 10us * 10 tries - program_formatter_reset_dig_resync_fifo line:647
[71818.574068] HDR SB:01 1a 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[71818.574076] HDR SB:00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[71818.651974] amdgpu 0000:01:00.0: [drm] REG_WAIT timeout 10us * 10 tries - program_formatter_reset_dig_resync_fifo line:647
[71936.689054] amdgpu 0000:01:00.0: [drm] ERROR Restoring old state failed with -12
EDIT: Just realized there was another update, so I just installed that and rebooted. Still doesn’t work, but I checked dmesg again and caught this line.
[ 323.915576] snd_hda_codec_atihdmi hdaudioC0D0: HDMI: Unknown ELD version 0