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Bug#1123619: /usr/share/bug/linux-image-6.17.11+deb14-amd64/presubj: Regression: IMC Networks USB2.0 UVC 2M WebCam found but unusable (was ok in image 6.17.9)

Cross-posted to 2 groups.

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Hi Benoît,

On Fri, Dec 19, 2025 at 11:30:59PM +0100, Benoît Rouits wrote:
> Hi Salvatore,
> 
> Le 19/12/2025 à 23:09, Salvatore Bonaccorso a écrit :
> > Source: linux
> > Source-Version: 6.18.2-1~exp1
> > 
> > Hi Benoît,
> > 
> > On Fri, Dec 19, 2025 at 11:02:26PM +0100, Benoît Rouits wrote:
> > > Hi Salvatore,
> > > 
> > > Thank you for your reply and bissect explanation.
> > > 
> > > As a quick top-post Reply: 6.18.2-1~exp1 works for me \o/
> > > 
> > > I think, then, the bissection isn't worth it. But if you need it for the
> > > record, just ask me.
> > 
> > Thanks for quickly testing. No in this case I guess bisecting
> > 6.17.9..6.17.11 is bit waste of time. You might as well test 6.17.13
> > which I'm going to upload after 6.17.12 migrates to testing, but the
> > plan is to move to 6.18.y after that.
> > 
> 
> Ahm... my previous mail was too optimistic: I ran into the same issue again
> after rebooting a second time on 6.18.2-1~exp1.
> 
> If i reboot to 6.17.9 the issue disappear, and rebooting on 6.18.2-1~exp1
> works good. But booting twice on 6.18.2-1~exp1 does not.
> 
> I'm not sure if it is a hardware problem, or a hardware state.
> 
> I will investigate more tomorrow.

I have reopened the bug, thanks for reporting back quickly.

Regards,
Salvatore

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Bug#1123619: /usr/share/bug/linux-image-6.17.11+deb14-amd64/presubj: Regression: IMC Networks USB2.0 UVC 2M WebCam  found but unusable (was ok in image 6.17.9) Salvatore Bonaccorso <carnil@debian.org> - 2025-12-19 22:20 +0100
  Bug#1123619: /usr/share/bug/linux-image-6.17.11+deb14-amd64/presubj: Regression: IMC Networks USB2.0 UVC 2M WebCam found but unusable (was ok in image 6.17.9) Benoît Rouits <brouits@free.fr> - 2025-12-19 23:10 +0100
    Bug#1123619: /usr/share/bug/linux-image-6.17.11+deb14-amd64/presubj: Regression: IMC Networks USB2.0 UVC 2M WebCam found but unusable (was ok in image 6.17.9) Salvatore Bonaccorso <carnil@debian.org> - 2025-12-20 14:00 +0100
      Bug#1123619: /usr/share/bug/linux-image-6.17.11+deb14-amd64/presubj: Regression: IMC Networks USB2.0 UVC 2M WebCam found but unusable (was ok in image 6.17.9) Benoît Rouits <brouits@free.fr> - 2025-12-20 23:30 +0100

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