Hello, I am new to arch and endeavour os, I have been struggling with this for a couple of hours now.
When I boot my laptop without a dock (usb-c to two displaylink monitors) plugged in, the audio works perfectly from the internal speakers and external headphones.
When I boot with the dock plugged in, how I intend to use it, I get “dummy output”.
This log seems to be an indicator of something wrong:
sudo dmesg | grep -iE 'snd|sof'
[ 0.029904] software IO TLB: area num 32.
[ 2.672637] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti giometti@linux.it
[ 2.778354] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
[ 2.778355] software IO TLB: mapped [mem 0x000000003b678000-0x000000003f678000] (64MB)
[ 6.608284] snd_hda_intel 0000:00:1f.3: dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead
[ 6.608316] snd_hda_intel 0000:00:1f.3: enabling device (0000 → 0002)
[ 6.608645] snd_hda_intel 0000:01:00.1: dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead
[ 6.608659] snd_hda_intel 0000:01:00.1: enabling device (0000 → 0002)
[ 6.608769] snd_hda_intel 0000:01:00.1: Disabling MSI
[ 6.608775] snd_hda_intel 0000:01:00.1: Handle vga_switcheroo audio client
[ 7.934647] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[ 10.406774] ISO 9660 Extensions: Microsoft Joliet Level 3
[ 10.407883] ISO 9660 Extensions: Microsoft Joliet Level 3
[ 204.110302] usbcore: registered new interface driver snd-usb-audio
[ 208.897475] snd-usb-audio 2-1.4:1.4: usb_set_interface Failed to disable LPM
[ 221.584880] snd-usb-audio 2-1.4:1.4: usb_set_interface Failed to disable LPM
[ 221.590917] snd-usb-audio 2-1.4:1.4: usb_set_interface Failed to disable LPM
[ 221.611932] snd-usb-audio 2-1.4:1.4: usb_set_interface Failed to disable LPM
[ 221.612020] snd-usb-audio 2-1.4:1.4: usb_set_interface Failed to disable LPM
[ 221.632928] snd-usb-audio 2-1.4:1.4: usb_set_interface Failed to disable LPM
[ 221.633017] snd-usb-audio 2-1.4:1.4: usb_set_interface Failed to disable LPM
[ 221.832424] snd-usb-audio 2-1.4:1.4: usb_set_interface Failed to disable LPM
[ 221.832548] snd-usb-audio 2-1.4:1.4: usb_set_interface Failed to disable LPM
[ 221.853663] snd-usb-audio 2-1.4:1.4: usb_set_interface Failed to disable LPM
[ 221.853820] snd-usb-audio 2-1.4:1.4: usb_set_interface Failed to disable LPM
[ 221.874881] snd-usb-audio 2-1.4:1.4: usb_set_interface Failed to disable LPM
[ 221.875440] snd-usb-audio 2-1.4:1.4: usb_set_interface Failed to disable LPM
any advice?