Greetings! The alsa-info output links below is from a Lenovo P16 Gen2, running Linux Mint 21.3, with an intermittent sound problem. The problem is that: Sound will be available from either built in speakers or headphones, perhaps for several days after a startup, but at some point will fail, with both Headphones (via jack) and internal Speakers disappearing from the "sound" app, and "Dummy Output" appearing in their place. If it's possible to reproduce this failure, I haven't figured out how. It happens when it happens, usually after a few days of uptime. I've found that sound can be restored with "sudo alsa force-reload", so I do have a workaround. *** For before-and-after comparison purposes... *** This report was taken when "Dummy Output" was shown in the Sound app: http://alsa-project.org/db/?f=4ec46710d176deb77fcdd950520eaafc4c9db1c3 *** This report was taken after a "sudo alsa force-reload", which restored both headphones and speakers to the Sound app" http://alsa-project.org/db/?f=3832b192eaa22ea4d51b0e6073f389318b983356 *** In the "System Reports" app, there are no crash reports shown. BUT... In the system logs app, I did find some lines in the Hardware section that may be relevant: 09:41:50 kernel: sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at snd_soc_pcm_component_prepare on 0000:00:1f.3: -22 09:41:50 kernel: sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at snd_soc_pcm_component_prepare on 0000:00:1f.3: -22 09:41:50 kernel: sof-audio-pci-intel-tgl 0000:00:1f.3: error: set pcm hw_params after resume 09:41:50 kernel: sof-audio-pci-intel-tgl 0000:00:1f.3: HW params ipc failed for stream 1 09:41:50 kernel: sof-audio-pci-intel-tgl 0000:00:1f.3: ipc tx error for 0x60010000 (msg/reply size: 108/20): -22 I really have no idea whether I'm submitting this in the right place or not, whether this is a kernel problem, a driver problem, a config problem, or whatever. I can tell you that this Mint install is new on a new machine, otherwise well-behaved, with subsequent updates that have not changed this sound behavior. Hope this is useful to you, love to have it fixed. Thanks! - Bob -- Robert Hoskin rhoskin@xxxxxxxxxxxx
