On Mon, 19 Dec 2022, Pierre-Louis Bossart wrote:
On 12/18/22 7:02 AM, Mark Hills wrote:
HP Chromebook (11a, G5 "Setzer") uses snd_soc_sst_cht_bsw_rt5645 module and presents a device "rt5650".
can you share the result of 'aplay -l', wondering which platform driver you are using.
I've pasted below; "rt5650 [sof-bytcht rt5650]" is in the output.
Audio works briefly, until after about 30 seconds it's interrupted by a square wave or short buffer cycling.
If this is with the SOF driver, there's a known issue and a known workaround, please add this to /etc/modprobe.d/alsa-base.conf
options snd_sof sof_debug=1
Thanks. It does indeed appear to be a workaround. I didn't notice any additional debug in dmesg.
For my own interest, do you have a URL or link to the origin of this workaround?
I did however manage to trigger the same sound when Firefox opened the audio input device in another tab while playing a YouTube video. I didn't see a bug report in dmesg. This isn't a use case I'm too worried about yet.
But this has certainly improved stability to the point that it's usable! Thank you.