Bug#991941: linux: Don't use nouveau with Nvidia GeForce 8500 GT or alert in dmesg that firmware is needed
Hello again
El 10 de agosto de 2021 2:56:01 CEST, Ben Hutchings <ben@decadent.org.uk> escribió:
>Control: tag -1 moreinfo
>
>On Fri, 2021-08-06 at 12:03 +0200, Laura Arjona Reina wrote:
>> Source: linux
>> Severity: normal
>>
>> Dear Maintainer,
>>
>> *** Reporter, please consider answering these questions, where
>> appropriate ***
>>
>> * What led up to the situation?
>>
>> I have installed Debian 11 (debian installer RC3) on a PC having a
>> Nvidia GeForce 8500 GT as main graphics card.
>> The graphicall install process went well. After finishing the
>> installation and reboot, I got a blank screen and "Input not supported"
>> on my monitor.
>> I changed to tty2 and logged in, and saved the dmesg output (attached),
>> I noticed that "nouveau" driver was loaded but there was no info about
>> my card not supported or needing additional firmware.
>
>The missing firmware should have been fixed in installer RC3 *if* you
>use an installer image that includes firmware, but not if you use the
>default images. Which did you use?
>
I used the official image without firmware but was expecting that using isenkram-autoinstall-firmware afterwards was equivalent.
>On the kernel side we should try to fix the blank screen with an
>earlier check for firmware in nouveau, similarly to the way we patch
>the amdgpu and radeon drivers. (Although those patches now seem not to
>be completely effective.)
>
>> * What exactly did you do (or not do) that was effective (or
>> ineffective)?
>>
>> I have rebooted and edited the "linux" line during Grub menu, to add
>> "nomodeset" and then I could have a fallback graphics mode.
>> I have installed the isenkram-cli package and ran
>> isenkram-autoinstall-firmware as suggested in the release notes and it
>> installed firmware for my realtek card (unrelated) and
>> firmware-misc-nonfree, but rebooting makes Linux pick the nouveau driver
>> again.
>[...]
>
>Well that's expected. The kernel driver and firmware are two different
>things that work together. Installing the firmware should allow
>nouveau to work properly.
>
>Are you saying that even with firmware-misc-nonfree installed, you
>still get a black screen when you don't use "nomodeset"?
>
Exactly.
At the end of August or beginning of September I can do an install using the image with firmware but I'll suspect that the results will be the same, because the needed firmware is not in Debian non-free either (card not supported in Bullseye). I think that nouveau should somehow output that message (card not supported) so the user gets a hint about what's happening.
Kind regards
--
Laura Arjona Reina
https://wiki.debian.org/LauraArjona
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