On 2/8/22 12:46, dmummenschanz@xxxxxx wrote: > Hello, > > the audio chip Cannon Lake PCH cAVS ALC892 does not get recognized on > my system. Only the HDMI devices are recognized. > > lspci shows the following audio device: > 00:1f.3 Audio device: Intel Corporation Cannon Lake PCH cAVS (rev 10) > > dmesg only shows: > > [ 189.559786] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops > i915_exit [i915]) > [ 189.581395] input: HDA Intel PCH HDMI/DP,pcm=3 as > /devices/pci0000:00/0000:00:1f.3/sound/card0/input20 > [ 189.581503] input: HDA Intel PCH HDMI/DP,pcm=7 as > /devices/pci0000:00/0000:00:1f.3/sound/card0/input21 > [ 189.581628] input: HDA Intel PCH HDMI/DP,pcm=8 as > /devices/pci0000:00/0000:00:1f.3/sound/card0/input22 > [ 189.581711] input: HDA Intel PCH HDMI/DP,pcm=9 as > /devices/pci0000:00/0000:00:1f.3/sound/card0/input23 > [ 189.581849] input: HDA Intel PCH HDMI/DP,pcm=10 as > /devices/pci0000:00/0000:00:1f.3/sound/card0/input24 > > > ALSA-info file: > http://alsa-project.org/db/?f=96102ee84f258d1cac83ed33795356550181511c I see to references to ALC892 in this profile, is this information based on the hardware specs or Windows logs? we usually ask people to try with a more recent kernel, but in your case I would try to go back to a mainline release. I have no idea what this version might contain audio-wise: 5.17.0-rc3-drmtip > > There is a workaround availble: > > echo auto | tee /sys/devices/pci0000\:00/0000\:00\:1f.3/power/control > echo 1 | tee /sys/devices/pci0000\:00/0000\:00\:1f.3/remove > echo 1 | tee /sys/bus/pci/rescan > > unfortunately this doesn't work for me. The device never shows up. > Sound on winX works fine on this device btw. > I'm happy to assist with any attempts to make the sound work.
