71

Software - Support / Re: Nouveau ----> Nvidia, trouble changing driver

« Last post by dibl on 2024/04/02, 14:14:11 »

Thanks, @towo. With your hints, I was able to see it build the nvidia-current module. But, of course the GPU is already bound to the nouveau module, and so when it is unloaded the screen is lost, and apparently some keyboard input is also terminated. I attempted some commands "while blind" like

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rmmod nouveau && modprobe nvidia-current && systemctl isolate multi-user.target(didn't work). I know the keyboard is not totally dead, because Ctrl-Alt-Del will still sent the reboot signal.

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Software - Support / Re: Nouveau ----> Nvidia, trouble changing driver

« Last post by towo on 2024/04/02, 08:38:41 »

nvidia-driver is only a metapackage, so reinstalling it, will never trigger a rebuild for the kernel modules.

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dpkg-reconfigure nvidia-kernel-dkmswould do that, as also

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apt install --reinstall nvidia-kernel-dkms

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Software - Support / Re: Nouveau ----> Nvidia, trouble changing driver

« Last post by ro_sid on 2024/04/02, 00:35:50 »

Oh, well, sorry, the name of the Nvidia-Siduction-driver 550 is "nvidia-current", not just "nvidia"!
And I built the 550 driver version immediately before the actual one (supplied by towo, also) successfully with kernel version 6.7(.10), too!
[I deleted that kernel now, but I see no reason, why this version should not compile with a 6.7 kernel, also.]

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Software - Support / Re: Nouveau ----> Nvidia, trouble changing driver

« Last post by dibl on 2024/04/02, 00:05:01 »

Digging, digging, digging ...

I watched closely while attempting to install --reinstall nvidia-driver. It appears to me that the dkms process to build the nvidia module is not actually working (I have dkms and nvidia-kernel-dkms installed). Here is the output of the installation command:

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Reading package lists...
Building dependency tree...
Reading state information...
The following package was automatically installed and is no longer required:
  libabsl20220623t64
Use 'apt autoremove' to remove it.
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded.
Need to get 520 kB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 https://cdn.liquorix.net/siduction/fixes unstable/non-free amd64 nvidia-driver amd64 550.67-0siduction2 [520 kB]
Fetched 520 kB in 1s (637 kB/s)
(Reading database ... 282371 files and directories currently installed.)
Preparing to unpack .../nvidia-driver_550.67-0siduction2_amd64.deb ...
Unpacking nvidia-driver (550.67-0siduction2) over (550.67-0siduction2) ...
Setting up nvidia-driver (550.67-0siduction2) ...
root@dibl-MOW:~#
That's all of it -- no dkms module build output.

Following that exercise, here is the output of

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modprobe nvidia

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modprobe: FATAL: Module nvidia not found in directory /lib/modules/6.7.6-1-siduction-amd64
Question: Is the 550.67 driver ONLY for kernel 6.8 and later?  I'm still on 6.7.

75

Software - Support / Re: Nouveau ----> Nvidia, trouble changing driver

« Last post by dibl on 2024/04/01, 22:53:45 »

Thank you, @ro_sid. Tomorrow will bring new energy to attack this issue.   

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Software - Support / Re: Nouveau ----> Nvidia, trouble changing driver

« Last post by ro_sid on 2024/04/01, 22:41:33 »

But how to remove nouveau?

With my Ubuntu 18.04 LTS [I never upgraded beyond that because of "forced snap"], I always used

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module-load=nvidia blacklist=nouveauin the grub kernel-load line ("linux").
With Debian 11

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nouveau.modeset=0With Debian 12

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nomodesetThen I could "rmmod (=modprobe -r) nouveau".
May be, one of those or a combination can help you, too .

The xserver-xorg-video-nouveau package is already removed.

You may even (re-)install that, it is just "xorg". The problematic part is the nouveau kernel driver, automatically included in the kernel package.

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Software - Support / Re: Nouveau ----> Nvidia, trouble changing driver

« Last post by dibl on 2024/04/01, 21:58:48 »

The real problem is, as long, as nouveau module is loaded, no nvidia blob can be used.

Exactly correct!  And we all know what happens to the terminal display when I

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modprobe -r nouveau.   

Thanks @geier0815 -- my /etc/X11/xorg.conf.d does not contain the 20-nvidia.conf file, but as far as I know, this is no longer needed. My other nvidia desktop does not have it, and it is running the nvidia driver correctly.

I have been setting "Wayland" in my  sddm login for over a year with no issues on that.

Maybe I can figure out a way to use the chroot helper on the siduction ISO to unload nouveau and load nvidia.

Or maybe I go to a VESA driver first, then nvidia.  But how to remove nouveau?  The xserver-xorg-video-nouveau package is already removed.

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Software - Support / Re: Nouveau ----> Nvidia, trouble changing driver

« Last post by towo on 2024/04/01, 21:30:14 »

The real problem is, as long, as nouveau module is loaded, no nvidia blob can be used.

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Software - Support / Re: Nouveau ----> Nvidia, trouble changing driver

« Last post by ro_sid on 2024/04/01, 20:53:31 »

My system is a hybrid system ("optimus") only, thus I can not really tell, how it should read, but ...

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kdeinit5_wrapper: Warning: connect(/run/user/1000/kdeinit5__0) failed: : No such file or directory
Error: Can not contact kdeinit5!
org.kde.startup: "kdeinit5_shutdown" () exited with code 255... why is there no "/run/user/1000/kdeinit5__0" file? It is unlikely, that this is "nvidia"-dependent.
Also

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startkde: Starting up...
startkde: Shutting down...
startkde: Done.seems to say, that you did not start it by/from a display manager (sddm)?
[A display manager should have the same problem starting with the nvidia-driver.]
Also for me this reads "plasma...", not "...kde".

The KDE people - to my knowledge - now prefer wayland over xorg. Is a mismatch possible? System assumes xorg, but default is wayland?

Finally, you could - in terminal mode - test, if the nvidia driver module/s is/are loaded (lsmod) at all.

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Software - Support / Re: Nouveau ----> Nvidia, trouble changing driver

« Last post by Geier0815 on 2024/04/01, 20:09:09 »

And what looks your /etc/X11/xorg.conf.d/20-nvidia.conf ( or similar) like?
I don't know if it is still needed this days, but I've got this config with

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Section "Device"
Identifier "Device 0"
Driver "nvidia"
EndSection