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Are there any errors emitted when this happens if you have
journalctl -fk
running in a terminal in the background?It happened again... ran journal thing...
Got this...
Jun 17 21:45:16 pop-os kernel: snd_hda_codec_realtek hdaudioC0D0: Unable to sync register 0x2b8000. -5
Jun 17 21:45:16 pop-os kernel: snd_hda_codec_realtek hdaudioC0D0: Unable to sync register 0x2b8000. -5
Jun 17 21:45:18 pop-os kernel: snd_hda_codec_realtek hdaudioC0D0: Unable to sync register 0x2b8000. -5
Jun 17 21:45:18 pop-os kernel: snd_hda_codec_realtek hdaudioC0D0: Unable to sync register 0x2b8000. -5
Jun 17 21:46:51 pop-os kernel: azx_single_wait_for_response: 738 callbacks suppressed
Jun 17 21:46:51 pop-os kernel: snd_hda_codec_realtek hdaudioC0D0: Unable to sync register 0x2b8000. -5
Jun 17 21:46:51 pop-os kernel: snd_hda_codec_realtek hdaudioC0D0: Unable to sync register 0x2b8000. -5
Jun 17 22:54:35 pop-os kernel: azx_single_wait_for_response: 362 callbacks suppressed
Jun 17 22:54:35 pop-os kernel: snd_hda_codec_realtek hdaudioC0D0: Unable to sync register 0x2b8000. -5
Jun 17 22:54:35 pop-os kernel: snd_hda_codec_realtek hdaudioC0D0: Unable to sync register 0x2b8000. -5
and then this when I did the journal thing for the past hour. Just copied the part that was red.
Jun 17 22:54:35 pop-os kernel: azx_single_wait_for_response: 362 callbacks suppressed
Jun 17 22:54:35 pop-os kernel: snd_hda_codec_realtek hdaudioC0D0: Unable to sync register 0x2b8000. -5
Jun 17 22:54:35 pop-os kernel: snd_hda_codec_realtek hdaudioC0D0: Unable to sync register 0x2b8000. -5
Jun 17 22:54:35 pop-os gsd-media-keys[3235]: Unable to get default source
Jun 17 22:55:20 pop-os gsd-media-keys[3235]: Unable to get default source
Then the issue is in the kernel and it may be fixed in a future kernel update. It might be caused by a power state. You can add
intel_idle.max_cstate=1
to your kernel options by runningsudo kernelstub -a intel_idle.max_cstate=1
to limit the max cstate, at the cost of higher energy consumption.haven't tried that, leaving that open in the terminal now and waiting for it to happen again.