Bug#989010: linux-image-5.10.0-7-amd64: No display (post, grub, boot messages and desktop) after the upgrade to 5.10.38
Source: linux
Followup-For: Bug #989010
X-Debbugs-Cc: pitsiorisj@gmail.com
Finally a sane reply by someone!
First of all, I do not think that my issue is related to sleep at all. I
mentioned all that in the first post just in case. I know sleep is problematic
in linux, thus I never use it. I also don't use it in windows too.
Second, the procedure you mention with the power cable was done many times
after the 2 cards failed to boot, but instead of a live cd I tried to boot from
my drive. It succeeded a couple of times with the nvidia one, but once the ati
started doing it, it died and had to be replaced.
Again, 2 different cards died after the upgrade to that very specific kernel
version. Let that sink in...
Right now both cards are on their way to another city where a friend of mine
will test them too on his main and spare pc.
As for the kernels, why would I boot to such an old kernel like buster's? As I
have said above, today's nouveau is very inferior to nvidia, so I imagine the
one from 4.19 will be even worse.
And as I have said, I have no other gpu to sacrifice for testing 5.10. Plus,
that ati that died was my fallback gpu for the day I would be force to use
nouveau with nvidia. That is why I do my best on every kernel update for the
340 legacy driver to stay in the repo.
Regarding video acceleration. I do have firmware-misc-nonfree (as a direct
dependency of firmware-linux-nonfree) and I saw ZERO video acceleration even on
480p videos. But vdpau works flawlessly on both the 9500 (currently using,
borrowed too) and also on the gt210 that died, even on 1080p60 videos. I can
post mpv's output if you wish to check it uses vdpau.
I also found that bit of info that says some firmware must be extracted from
nvidia's driver in order for vaapi to work, but I was too busy to try it.
https://nouveau.freedesktop.org/VideoAcceleration.html
As for the kernel itself, I am on 5.10 since it first reached debian, on
December 31st 2020 (according to the tracker), i.e. 5.10.4 (package linux-
image-5.10.0-1-amd64).There have been 6 more revisions of that 5.10 kernel
since then, but the issue I am reporting happened only on 5.10.38/40 (package
linux-image-5.10.0-1-amd64) and with 2 different cards.
How isn't that a debian issue? A few kernels ago, something was changed in
kernel's build config and caused the nvidia legacy 340 driver not to be built
at all! And guess who found the patch for it again...
Last but not least, because someone suggested that my psu is broken, I would
like to add that it is a all new 80+ bronze, be quiet brand that was installed
on January 6th 2021. Yes, it is older than 5.10 is on debian.
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