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Bug#1028451: 2nd DisplayPort doesn't get video

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  Bug#1028451: 2nd DisplayPort doesn't get video Diederik de Haas <didi.debian@cknow.org> - 2023-01-11 10:00 +0100
    Bug#1028451: 2nd DisplayPort doesn't get video "Didier 'OdyX' Raboud" <odyx@debian.org> - 2023-01-12 08:50 +0100

#77882 — Bug#1028451: 2nd DisplayPort doesn't get video

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On Wednesday, 11 January 2023 08:33:29 CET Didier 'OdyX' Raboud wrote:
> Package: src:linux
> Version: 6.1.4-1
> Severity: serious
> 
> Since booting 6.1.0-1, the 2nd DisplayPort output from my Lenovo Docking
> Station doesn't get any output.

Can you try the previous versions of the 6.1.x series which you can get via 
snapshot.debian.org? I recommend to start with the first 6.1-rcX version.

A `git bisect` is the best way to figure out what caused it, but the above 
procedure is the quickest way to narrow down the search space.

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#77901

Hello there,

It's really time-consuming to download, reboot, wait cryptsetup prompt, fail,
reboot, wait cryptsetup prompt, type long passphrase, log in account, dpkg -i,
reboot, rinse repeat.

Anyway, I can confirm that on my Lenovo X13 AMD;

* 6.1~rc3+1~exp1 doesn't boot until the cryptsetup prompt
* 6.1~rc5+1~exp1 doesn't boot until the cryptsetup prompt
* 6.1~rc6+1~exp1 doesn't boot until the cryptsetup prompt
* 6.1~rc7+1~exp1 boots until the cryptsetup prompt, but the culprit screen
  doesn't get anything

So it seems the issue was already there in 6.1~rc7+1~exp1, but I can't rewind
further.

Hope that helps!

OdyX

11 janvier 2023 10:04 "Diederik de Haas" <didi.debian@cknow.org> a écrit:

> On Wednesday, 11 January 2023 08:33:29 CET Didier 'OdyX' Raboud wrote:
> 
>> Package: src:linux
>> Version: 6.1.4-1
>> Severity: serious
>> 
>> Since booting 6.1.0-1, the 2nd DisplayPort output from my Lenovo Docking
>> Station doesn't get any output.
> 
> Can you try the previous versions of the 6.1.x series which you can get via
> snapshot.debian.org? I recommend to start with the first 6.1-rcX version.
> 
> A `git bisect` is the best way to figure out what caused it, but the above
> procedure is the quickest way to narrow down the search space.

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