On Sat, 07 Mar 2020 14:00:26 +0100, laurent Trinques wrote:
Hello,
sudo dmesg -lerr -lcrit
[ 0.386478] ACPI BIOS Error (bug): Failure creating named object [_SB.I2CA.WT1A], AE_ALREADY_EXISTS (20191018/dswload2-323)
(snip)
[ 2.545332] Error: Driver 'pcspkr' is already registered, aborting...
All those are irrelevant with the sound problem.
[ 2.572542] snd_hda_intel 0000:23:00.4: no codecs found!
I guess this is a known "problem", the strange hardware implementation where exposing the dummy HD-audio bus with non-existing codec. So this can be ignored as well (maybe we can blacklist the PCI ID for ignoring more properly).
The real issue is:
[ 8.169209] usb 7-5: cannot get ctl value: req = 0x83, wValue = 0xc00, wIndex = 0x1300, type = 4 [ 8.169214] usb 7-5: 19:0: cannot get min/max values for control 12 (id 19)
So it's likely a USB audio firmware that doesn't behave correctly as advertised, and we'd need a workaround.
Could you give lsusb -v output for this device?
Takashi