Le dimanche 29 mars 2020, 10:50:53 CEST Takashi Iwai a écrit :
> 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?

Yes 
Bus 007 Device 002: ID 0db0:543d Micro Star International USB Audio

See attached output.

Thanks,
Regards,

Laurent
> 
> 
> Takashi