Nouveau - Apr 2015 - [Bug 90092] New: Screen Hangs Displaying Black and White Rectangles After Resuming from Suspend

https://bugs.freedesktop.org/show_bug.cgi?id=90092

            Bug ID: 90092
           Summary: Screen Hangs Displaying Black and White Rectangles
                    After Resuming from Suspend
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: jean-marc at 6jf.be
        QA Contact: xorg-team at lists.x.org

Created attachment 115184
  --> https://bugs.freedesktop.org/attachment.cgi?id=115184&action=edit
dmesg (kernel_log.txt)

I got the same problem than the one described in the bug 89186.
(https://bugs.freedesktop.org/show_bug.cgi?id=89186)

A black and white mosaic displayed on my screen after resuling from suspend.

I also tried a 3.19 kernel without success.


I first reported to Debian (the distro I use).
See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=781337


The maintainers told me it is mainly a kernel problem.

They also asked to report it upstream to help.

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--- Comment #1 from Jean-Marc <jean-marc at 6jf.be> ---
Created attachment 115185
  --> https://bugs.freedesktop.org/attachment.cgi?id=115185&action=edit
lspci-vvv

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--- Comment #2 from Jean-Marc <jean-marc at 6jf.be> ---
Created attachment 115186
  --> https://bugs.freedesktop.org/attachment.cgi?id=115186&action=edit
modinfo nouveau

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--- Comment #3 from Jean-Marc <jean-marc at 6jf.be> ---
hi,

Something I noticed it never happens if I keep the screen switched on.

I got this when I suspend my PC switching off the screen too.

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--- Comment #4 from Ilia Mirkin <imirkin at alum.mit.edu> ---
[ 1013.446964] nouveau E[    PBUS][0000:02:00.0] MMIO write of 0x00000000 FAULT
at 0x103d94

That indicates that PCRYPT is somehow not coming up on resume. And we use it
for faster copies on those GPUs, so it makes sense you'd be getting funny
rectangles. You can disable it with

nouveau.config=PCRYPT=0

which should cause it to use M2MF instead. It's *highly* surprising that
you'd
be getting that sort of issue though... no clue why that would happen. A few
boards are missing PCRYPT, but in that case, it *never* works (including
logging similar mmio faults on boot). Perhaps something messed up in the VBIOS
init tables?

BTW, in newer kernels, this will become PCIPHER instead of PCRYPT (for the
nouveau.config line above).

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--- Comment #5 from Jean-Marc <jean-marc at 6jf.be> ---
Strange. I got this MMIO error everytime my system resume.

4 times today without getting the other PGRAPH errors and the messed screen.

And no error messages regarding VBIOS init tables.

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Martin Peres <martin.peres at free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #6 from Martin Peres <martin.peres at free.fr> ---
-- GitLab Migration Automatic Message --

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You can subscribe and participate further through the new bug through this link
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