Nouveau - Feb 2015 - [Bug 82714] [G84] nouveau fails to properly initialize GPU

https://bugs.freedesktop.org/show_bug.cgi?id=82714

--- Comment #6 from Pierre Moreau <pierre.morrow at free.fr> ---
Sorry, I didn't had much time to look into it...
I'm currently tracking some similar problems on my G96, which is a secondary
GPU. Hopefully, if I manage to solve it, the patch will help you too.

(In reply to Bruno from comment #5)
> After fresh boot:
> echo 1 > /sys/bus/pci/devices/0000\:01\:00.0/reset
Does adding an `echo 1 > /sys/bus/pci/devices/0000\:01\:00.0/rescan` after
the
reset changes something?

You hit some PFIFO interrupt 0x00200000... Btw, which kernel version was this
log taken from? Could you please take another log using the reset/rescan trick
with nouveau.debug=debug? The debug argument of Nouveau takes a string (allowed
values are "fatal", "error", "warn",
"info", "debug", "trace", "paranoia" and
"spam"), so your 0xff didn't worked.
It's likely that the PFIFO interrupt is unrelated to the "unable to
handle
kernel paging request" problem, so you should consider opening a new bug
report
for it.

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