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Bug#1117256: linux-image-6.12.48+deb13-amd64: Kernel can no longer activate ethernet on Dell WD19S docking station

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Hi Florian,

On Sun, Oct 05, 2025 at 02:23:15PM +0200, Florian Hars wrote:
> Package: src:linux
> Version: 6.12.48-1
> Severity: normal
> 
> Dear Maintainer,
> 
> when booting connected to a Dell WD19D docking station, my laptop can no longer activate
> the ethernet interface of the docking station. If I then unplug the laptop from the
> docking station, connect another laptop running Windows 11 to the docking station, wait,
> until it has enummerated all devices, unplug and then replug the laptop running debian,
> the network is detected and works (I am using it to send this report).
> 
> The kernel log below misses the important bits, this is waht happened durin initial boot:

Thanks. With "no longer activate the ethernet interface" I assume this
means you can identify an earlier kernel revision which did not cause
the problem?

Two questions:

First please try to boot with the most current version available in
Debian unstable (6.16.11-1 right now), to see if the problem persist.

Secondly if you are able to pinpoint a range where the kernel
regressed, it would be great if you can bisect the changes between
those versions (if you need instructions let us know).

Regards,
Salvatore

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Bug#1117256: linux-image-6.12.48+deb13-amd64: Kernel can no longer activate ethernet on Dell WD19S docking station Salvatore Bonaccorso <carnil@debian.org> - 2025-10-12 20:00 +0200
  Bug#1117256: linux-image-6.12.48+deb13-amd64: Kernel can no longer activate ethernet on Dell WD19S docking station Daniel <ganchya@gmail.com> - 2025-10-22 00:10 +0200
    Bug#1117256: linux-image-6.12.48+deb13-amd64: Kernel can no longer activate ethernet on Dell WD19S docking station Ben Hutchings <benh@debian.org> - 2025-10-23 00:10 +0200
      Bug#1117256: linux-image-6.12.48+deb13-amd64: Kernel can no longer activate ethernet on Dell WD19S docking station Daniel <ganchya@gmail.com> - 2025-10-23 22:00 +0200
  Bug#1117256: linux-image-6.12.48+deb13-amd64: Kernel can no longer activate ethernet on Dell WD19S docking station Salvatore Bonaccorso <carnil@debian.org> - 2025-11-01 17:50 +0100
    Bug#1117256: linux-image-6.12.48+deb13-amd64: Kernel can no longer activate ethernet on Dell WD19S docking station Florian Hars <florian@hars.de> - 2025-11-05 21:10 +0100

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