[Nouveau] [Bug 90453] [NVE4] Desktop freezes & PDISP, PFIFO, PGRAPH and PGR errors

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90453

--- Comment #25 from Arthur Heymans <arthurphilippeheymans at gmail.com> ---
Hi 
I also have this bug (screen freeze and mouse still usable) on a my system
using a nvidia 660ti [NVE4]:
dmesg gives
[  112.780941] nouveau E[   PFIFO][0000:03:00.0] SCHED_ERROR [ CTXSW_TIMEOUT ]
[  112.780947] nouveau E[   PFIFO][0000:03:00.0] PGRAPH engine fault on channel
8, recovering...

or 

[  294.274092] nouveau E[   PFIFO][0000:03:00.0] write fault at 0x000a002000
[PTE] from GR/GPC0/PROP_0 on channel 0x007f6ab000 [systemd-logind[426]]
[  294.274103] nouveau E[   PFIFO][0000:03:00.0] PGRAPH engine fault on channel
5, recovering...

I might be the same bug as I reported earlier
https://bugs.freedesktop.org/show_bug.cgi?id=90276

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