[Nouveau] [Bug 92991] Nouveau module loading regression in 4.4-rc1 on optimus system

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92991

--- Comment #9 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to Oliver Neukum from comment #8)
> With runpm=0 I get full output of xrandr. Without it, it is an instant crash:
> 
> Screen 0: minimum 8 x 8, current 1600 x 900, maximum 32767 x 32767
> eDP1 connected primary 1600x900+0+0 (normal left inverted right x axis y
> axis) 382mm x 215mm
>    1600x900      60.01*+  40.00  
>    1024x768      60.00  
>    800x600       60.32    56.25  
>    640x480       59.94  
> VGA1 disconnected (normal left inverted right x axis y axis)
> VIRTUAL1 disconnected (normal left inverted right x axis y axis)
> DisplayPort-1-0 disconnected (normal left inverted right x axis y axis)
> DisplayPort-1-1 disconnected (normal left inverted right x axis y axis)
> DisplayPort-1-2 connected (normal left inverted right x axis y axis)
>    1680x1050     59.88 +  59.95  

Those connector names look like they're from xf86-video-modesetting, not
xf86-video-nouveau. Could you try with xf86-video-nouveau installed? What
version of xf86-video-intel are you using? SNA or UXA?

I definitely know that earlier modesetting various had various issues with
reverse prime... when you say "lockup", do you really mean "lockup", or "system
working perfectly fine with the minor exception that the display stops
updating"?

Lastly, can you ensure that nouveau is loaded *before* X starts?

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