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Re: Debian 11 freezes on Dell Latitude e6520

Hello Andy,

Thank you for your answer.
The computer has 8 Gb memory, a lot more than enough to load the image.
The graphics are NVIDIA 4200M, with drivers provided, under Debian 10,
by the legacy deb packages.

Of course, I could try upgrading directly from Debian 10 and rely on
the backups if something goes wrong. As said, I did that for previous
releases... but only after having successfully made a test with the live

But you gave me one idea: I'll try the “standard” live image, without
any graphics and try to build from that to see what happens.



El Sun, 26 Dec 2021 13:17:07 +0000
"Andrew M.A. Cater" <amacater@einval.com> escribió:

> On Sun, Dec 26, 2021 at 11:47:27AM +0100, Miguel Ortiz Lombardía
> wrote:
> > Hi,
> > 
> > I have been using Debian on a Dell Latitude e6520 for ten years now.
> > At present, it runs without problem an up-to-date Debian 10 system.
> > 
> > From the beginning, before upgrading to any new release, I tried its
> > live image. This strategy has always successfully allowed upgrading
> > without stress. Sometimes I would do an upgrade, sometimes a clean
> > new installation. The latter one was the case for Debian 10.
> > 
> > Now, since Debian 11 was released earlier this year, I've been
> > testing its behaviour on the machine. Unfortunately, even with the
> > latest live image, including non-free firmware, the test is not
> > passed. The computer boots well and the graphical interface (I
> > tried my usual xfce, but also mate) appears neat and working.
> > However, after a few moments varying from few seconds to no more
> > than a couple of minutes, the system freezes completely. Impossible
> > to open a console, there is no answer at all, only physical
> > shutdown is possible. 
> Hi Mol,
> How much memory? What graphics? If you have the Nvidia NV620 and 4GB
> it's probably best _not_ to use the live disk - it takes a large
> amount of memory to get the live CD to boot and if nouveau is not the
> ideal driver then you do get lockups and similar.
> If you are currently using the non-free drivers on Debian 10, then you
> could, potentially just upgrade to Debian 11 on the same hardware. I
> do find it easier to install a bare minimum text only system if
> feasible _then_ install the non-free drivers but that may not be
> possible for you.
> All the very best, as ever,
> Andy Cater
> > I have searched for other people having similar problems and found a
> > forum where someone described the same issue with the Manjaro
> > distro:
> > 
> > https://www.linuxquestions.org/questions/showthread.php?s=6d5881750b8f3ceb6a12708b3a7683c9&p=6287384#post6287384
> > 
> > Unfortunately, the only advice given is to switch to another
> > distribution (AntiX is mentioned) I would prefer to stay on Debian,
> > but it's true that when support and security updates will arrive to
> > an end for Debian 10, I will need to move anyway to a different
> > distro if this problem is not solved.
> > 
> > Incidentally, I must say that I'm also unable to run Tails on this
> > machine since a few releases ago, for what looks as precisely the
> > same problem.
> > 
> > I wonder if this trouble could result from the upgrading of the
> > kernel to version 5.x? Or from the newest versions of Xorg or the
> > nouveau driver? By the way, I thought that the non-free nvidia
> > module and not nouveau would be used in the live images with
> > non-free firmware. 
> Nvidia non-free modules really need to be built per machine: nouveau
> is a good compromise.
> > The only debugging step I have managed to take during the few
> > seconds where the system is running is capturing in a file, on
> > another USB stick, the output of:
> > 
> > # sudo dmesg -wH
> > 
> > I have compared it with the results of the same command on my
> > normally running Debian 10. But my capacities to extract from there
> > any useful information are too limited. I hesitate to send those
> > longs files to the list.
> > 
> > Any clues would be welcomed.
> > 
> > Cheers,
> > 
> > -- mol
> >   

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