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Bug#1006149: linux-image-5.16.0-1-686: Fails to boot on T41 Thinkpads

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Hi Petra,

On Saturday, 5 March 2022 21:12:12 CET Petra R.-P. wrote:
> On Sat 05 Mar 2022 at 18:23:52 +0100  Diederik de Haas
> <didi.debian@cknow.org> wrote:
> > On Monday, 21 February 2022 17:25:33 CET Petra Rübe-Pugliese wrote:
>  [...]
> 
> > So if you remove the 'quiet' word there and do an update-grub, then the
> > boot will be 'noisier' by default (on every boot).
> 
> This is what I have done, for the time being.
> 
> As a result, there was a lot of output on the screen.
> I am attaching a foto of the final state, where it stopped.

I didn't see an obvious clue as to why it didn't continue ...

> However, I cannot find any trace of this in /var/log/kern.log.
> Whereas "grep 5.15.0  /var/log/kern.log" gives loads of output,
> "grep 5.16.0  /var/log/kern.log" does not produce anything at
> all. 

How about in /var/log/kern.log.1 (f.e.) ? Because on my system the very first 
message of a boot in that file begins with:
[    0.000000] Linux version 5.16.0-3-amd64 ...

> Also manual inspection of the file does not show any relevant passage.

So far, *I* haven't found a direct clue as to why things fail, so if you do 
have _a_ log of a boot with the 5.16 kernel, then having that could help.
Especially if you could provide a similar log of a boot with the 5.15 kernel. 
Doesn't need to be the whole log, but knowing a couple of lines which happen 
thereafter on 5.15 but not on 5.16 could provide a clue.

I saw that the 5.16.11-1 kernel transitioned to testing and it is useful to 
know if the issue is still present with that version.
In the upstream kernel in drivers/gpu/drm/amd I saw a number of commits since 
version 5.16.7 (and also several other commits which are part of 5.16.12 which 
is present in salsa, but not yet released).

When I look at the photo from https://bugs.debian.org/1006149#44 (from Axel), 
I do notice an important difference:
He has various [drm] messages, whereas I see none of those with you.
Do you have [drm] messages when booting with the 5.15 kernel?

That bug message also has the following which is different from yours:
ii  firmware-amd-graphics     20210818-1
...
ii  firmware-linux-nonfree    20210818-1
ii  firmware-misc-nonfree     20210818-1

So it would be interesting to know whether installing any of those packages 
makes a difference. I'd suggest first installing the firmware-amd-graphics 
package.

HTH,
  Diederik

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Bug#1006149: linux-image-5.16.0-1-686: Fails to boot on T41 Thinkpads Salvatore Bonaccorso <carnil@debian.org> - 2022-02-21 15:10 +0100
  Processed: Re: Bug#1006149: linux-image-5.16.0-1-686: Fails to  boot on T41 Thinkpads "Debian Bug Tracking System" <owner@bugs.debian.org> - 2022-02-21 15:10 +0100
  Bug#1006149: linux-image-5.16.0-1-686: Fails to boot on T41 Thinkpads Petra Rübe-Pugliese <debml@prp.in-berlin.de> - 2022-02-21 17:30 +0100
    Bug#1006149: linux-image-5.16.0-1-686: Fails to boot on T41 Thinkpads Diederik de Haas <didi.debian@cknow.org> - 2022-03-05 18:30 +0100
      Bug#1006149: linux-image-5.16.0-1-686: Fails to boot on T41 Thinkpads Diederik de Haas <didi.debian@cknow.org> - 2022-03-06 00:50 +0100

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