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dg2 / a750 HDMI Audio doesn't work w/ options snd_hda_codec_hdmi enable_silent_stream=Y

EDIT: My hardware is not working with enable_silent_stream on ANY kernel and works with silent stream disabled on all I have tested.

Running Siduction (based on Debian unstable 'sid'). Testing different kernels from Ubuntu mainline repository. HDMI audio works on 6.2.0 6.2.1 and 6.2.2 but doesn't work on any 6.2.{x>2} or the 6.3 rc's

Alsamixer looks the same, dmesg logs grepped for hda look the same. The device is there but no sound is produced.

Attaching dmesg logs with drm.debug=0xe log_buf_len=4M set from 6.2.2 and 6.2.3

(6.2.2.dmesg.log

6.2.3-dmesg.log

Edited by Moss Hope
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