[Nouveau] [Bug 91598] Broken Rendering of Plasma 5 Desktop

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91598

--- Comment #3 from David March <davidmarch007 at gmail.com> ---
Just wanted to add that I likewise am seeing the same issue.  As Andreas said
the problems increase as time goes on.  I do notice the corruption of menus and
such seems to be cumulative.  Eventually after many days in my experience
sometimes the problem can cause a full crash.  It makes no difference for me
whether or not compositing is on or off.

Here is a portion of the dmesg output:

[48838.708929] nouveau E[plasmashell[1827]] fail set_domain
[48838.708936] nouveau E[plasmashell[1827]] validating bo list
[48838.708959] nouveau E[plasmashell[1827]] validate: -22
[48838.757948] nouveau E[plasmashell[1827]] fail set_domain
[48838.757956] nouveau E[plasmashell[1827]] validating bo list
[48838.757964] nouveau E[plasmashell[1827]] validate: -22
[48839.000699] nouveau E[     PFB][0000:01:00.0] trapped read at 0x0020529000
on channel 0x0000f64f [plasmashell[1827]] PGRAPH/TEXTURE/00 reason:
PAGE_NOT_PRESENT
[48839.054871] nouveau E[     PFB][0000:01:00.0] trapped read at 0x0020529000
on channel 0x0000f64f [plasmashell[1827]] PGRAPH/TEXTURE/00 reason:
PAGE_NOT_PRESENT
[48839.690129] nouveau E[     PFB][0000:01:00.0] trapped read at 0x0020529000
on channel 0x0000fb33 [X[1641]] PGRAPH/TEXTURE/00 reason: PAGE_NOT_PRESENT

----------------

Hardware info:

01:00.0 VGA compatible controller: NVIDIA Corporation G84GL [Quadro FX 570]
(rev a1) (prog-if 00 [VGA controller])
        Subsystem: NVIDIA Corporation G84GL [Quadro FX 570]
        Flags: bus master, fast devsel, latency 0, IRQ 28
        Memory at fc000000 (32-bit, non-prefetchable) [size=16M]
        Memory at d0000000 (64-bit, prefetchable) [size=256M]
        Memory at fa000000 (64-bit, non-prefetchable) [size=32M]
        I/O ports at dc80 [size=128]
        Expansion ROM at fde00000 [disabled] [size=128K]
        Capabilities: [60] Power Management version 2
        Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [78] Express Endpoint, MSI 00
        Capabilities: [100] Virtual Channel
        Capabilities: [128] Power Budgeting <?>
        Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024
<?>
        Kernel driver in use: nouveau

---------

Software info:

x11-drivers/xf86-video-nouveau-1.0.11
media-libs/mesa-10.6.3
x11-apps/mesa-progs-8.2.0
kde-plasma/plasma-desktop-9999 (pulled from master 12:29:55 PM 08/09/2015) 

Linux gentoo 4.1.4-gentoo #1 SMP Tue Aug 4 15:36:28 EDT 2015 x86_64 Intel(R)
Core(TM)2 Quad CPU Q6600 @ 2.40GHz GenuineIntel GNU/Linux

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