Comment # 8 on bug 1089116 from Michal Srb

(In reply to Bit Juggler from comment #5)
> I'm not expert enough to tell whether bug #1068961 refers to the same
> problem or not.

Based on the identical backtrace and the combination of fbdev and modesetting
it is likely the same. I will try whether the patch linked in the bug fixes it.

(In reply to Bit Juggler from comment #7)
> (In reply to Michal Srb from comment #1)
> > Is nouveau kernel module loaded?
> 
> Looking at Xorg.0.log i can see
> 
> ...
> [    80.651] (II) LoadModule: "nouveau"
> [    80.651] (II) Loading /usr/lib64/xorg/modules/drivers/nouveau_drv.so
> [    80.651] (II) Module nouveau: vendor="X.Org Foundation"
> [    80.651] 	compiled for 1.19.6, module version = 1.0.15
> [    80.651] 	Module class: X.Org Video Driver
> [    80.651] 	ABI class: X.Org Video Driver, version 23.0
> ...
> 
> so i guess nouveau is loaded (under the control of bumblebee?).

Note that there are two parts to the driver - the nouveau kernel driver and the
nouveau Xorg driver (a module to X server). This shows that the nouveau Xorg
driver was loaded, but later messages also show that it failed to open the
matching DRM device (/dev/dri/card*) to communicate with the kernel driver and
it bailed out. Most likely because the nouveau kernel driver was blacklisted.

But if it has to be blacklisted for bumblebee, then it is intentional setup. It
should not crash, so lets try to fix it.