Bug#1095764: linux-image-6.1.0-31-amd64: Image 6.1.0-31 does not seem to be build from source 6.1.128-1

[Salvatore Bonaccorso <carnil@debian.org>]

Control: tags -1 + moreinfo
Control: retitle -1 Generalplus Technology Inc. GENERAL WEBCAM does not work / Found multiple Units with ID 5

Hi

On Wed, Feb 12, 2025 at 01:27:46AM +0700, Alf Nilsson wrote:
> Package: src:linux
> Version: 6.1.128-1
> Severity: normal
> 
> Dear Maintainer,
> 
> After following the the driver uvc_driver.c and it's rollback from the linux
> source, I see that the code is updated in the source 6.1.128-1, but when
> booting on the 6.1.0-31 image, my webcam does not work and also gives the
> error message from before the 6.1.128-1 code update.
> 
> "Found multiple Units with ID 5"
> 
> The error message is from code older than 6.1.124-1, so how it can be
> present in the image 6.1.0-31 does not match up.

I'm not really sure what you man with that it's not built from source
and there was a code rollback. Can you be more specific?

I have retitled the bug with my undrestanding that the specific webcam
does not work for your.

Is this a regression? Which is the last 6.1.y kernel which worked?

Can you test recent kernels from unstable (6.12.16-1) or experimental
(6.13.4-1~exp1), does the issue replicate there as well?

Can you attach the USB webcam and then post as well the full kernel
log?

Regards,
Salvatore