Good day Uwe,
I just asnwered to Salvatore with the following information. Hope it
helps:
/Hi Salvatore,/
/
/
/at the moment of reporting this issue I had already lost the mic hot
key also, so I took advantage of this second inconvenience to upgrade
to Debian 13. Both, the hot key and the audio, back to work after
upgrade./
/
/
/
/
/Anyway, when the audio issue appeared i done three things:/
/
/
/- back to intel-microcode and kernel previous version + reboot (
randomly worked )/
/- back only to previous kernel version + reboot ( randomly worked )/
/- back only to previous intel-microcode version + reboot (randomly
worked )/
/
/
/
/
/It seemed like some other adjustment had altered, but not in those 2
packages precisely. Or, as I read in some forum, some inconvenience
related to the load priorities of the services at the startup./
/
/
/
/
/Please let me know if I can send any extra info./
Best regards,
El mié, 4 de jun de 2025 a las 10:30:18 AM, Uwe Kleine-König
<[email protected]> escribió:
Control: retitle -1 linux-image-6.1.0-37-amd64: sound device
occasionally doesn't appear after last microcode/kernel update on
Lenovo Yoga Laptop
Hello,
On Thu, May 29, 2025 at 06:10:44PM +0200, Uwe Kleine-König wrote:
I added the i2c upstream maintainers for the i801 driver to Cc,
maybe
they have a good idea. To get an idea, find more context at
<https://bugs.debian.org/1106498>.
On Sun, May 25, 2025 at 07:07:02PM -0400, sergio wrote:
> $ dmesg -T
> [dom may 25 18:35:13 2025] i801_smbus 0000:00:1f.4: Transaction
timeout
> [dom may 25 18:35:13 2025] i801_smbus 0000:00:1f.4: Failed
terminating the
> transaction
> [dom may 25 18:35:13 2025] i801_smbus 0000:00:1f.4: SMBus is
busy, can't use
> it!
That sounds as if there was a problem with the smbus driver or one
of
its devices. Maybe bus recovery would help, but the driver doesn't
support that. I don't know if that is implementable?
What devices do you have on the bus? (You can find that out in a
first
approximation using `ls -l /sys/bus/i2c/devices/*`.)
Maybe this is a firmware issue. Are you running the newest BIOS on
that
machine?
Another thing I wonder is: In the initial report you said this happens
since the last kernel and microcode update. Can you please check if
reverting to the old kernel and microcode reliably fixes the problem
and
then try to update only one of the packages and retest. Ideally update
in small steps using packages from snapshot.debian.org to find out
which
package and version actually broke your sound output.
Best regards
Uwe
