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. -- Mark $ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: rt5650 [sof-bytcht rt5650], device 0: PCM (*) [] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: rt5650 [sof-bytcht rt5650], device 1: PCM Deep Buffer (*) [] Subdevices: 1/1 Subdevice #0: subdevice #0
