[Nouveau] [Bug 105344] Installation bug by video card modules conflict (nvidia GTX 950 M)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105344

--- Comment #6 from Yuri Gelsleichter <yuriplanta at gmail.com> ---
Dear all,

thanks for the points.

(In reply to Emil Velikov from comment #4)
> Considering that nouveau.modeset=0 helps, I'm flipping this to component
> nouveau. Feel free to revert.
> 
Flipping fits good.

> > kernel is: 4.13.0-36-generic
> > mesa: OpenGL version string: 3.0 Mesa 17.2.8
> FWIW these two are EOL. You might want to try something newer.
>
I tried the very fresh through ArchLinux and Manjaro.

> > libdrm: could not find
> > xf86-video-nouveau: could not find.
> > 
> Exact names might differ across distros - please search carefully.
> 
> > ---------------------
> > 
> > Follow the "kernel_log.txt" output:
> > 
> Please make sure you _attach_ logs.
> 
> > [    1.333868] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at
> > 612004 [ IBUS ]
> > [    1.335248] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at
> > 10ac08 [ IBUS ]
> 
> These two look mildly interesting. Not sure how much it matters sunce the
> nvidia device is a 3D controller - there should be no outputs wired/plugged.
>

It is a laptop, so always plugged.
The point here is that Nvidia has no drivers in use. With nouveau, system
breaks (impossible to boot), with proprietary system get slow and freeze often
(I am aware that you do not deal with proprietary drivers).

If I boot with "quite splash", the system breaks before boot.
If I boot without any "modeset", the system only get to the terminal.

The only way to get "normal" use is booting with any "nomodeset" (without
proprietary driver for videocard).

I was wondering to understand why the distros (all of them) do not work out of
the box in this machine. As they work great in general in any machine.

I would be glad if one day Linux working smooth out of the box on this
machines.

> Potential next steps include:
>  - using xserver or wayland - try the former
>  - [it using xserver] - flip between the modesetting and nouveau DDX
>  - attach the respective logs - xserver -> Xorg.*.log, wayland -> no idea
> where kwin puts it
> 
> If the above are cryptic, do read through the wikis/googleit ;-)
> 
> https://nouveau.freedesktop.org/wiki/
> https://nouveau.freedesktop.org/wiki/Optimus/
> https://wiki.archlinux.org/index.php/nouveau

Thanks for the path, I will go for it.
Thanks for all.

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