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>]

Hi Florian,

On Sun, Oct 12, 2025 at 07:55:55PM +0200, Salvatore Bonaccorso wrote:
> Control: tags -1 + moreinfo
> 
> 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).

Any news here? Additionally can you test 6.17.6-1 as it is now in
unstable as well?

Regards,
Salvatore