[Nouveau] [Bug 80506] New: Video failed on resume from suspend - G94 / GeForce 9600 GT, 10de:0622 , kernel 3.16 rc2

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80506

          Priority: medium
            Bug ID: 80506
          Assignee: nouveau at lists.freedesktop.org
           Summary: Video failed on resume from suspend - G94 / GeForce
                    9600 GT, 10de:0622 , kernel 3.16 rc2
        QA Contact: xorg-team at lists.x.org
          Severity: major
    Classification: Unclassified
                OS: All
          Reporter: awilliam at redhat.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: Driver/nouveau
           Product: xorg

Created attachment 101708
  --> https://bugs.freedesktop.org/attachment.cgi?id=101708&action=edit
journalctl from a 3.16 rc2 boot that reproduces the issue

This is kind of a follow-up to
https://bugs.freedesktop.org/show_bug.cgi?id=77599 , but the behaviour seems
different now and we're on kernel 3.16, so I figured we'd best start from
scratch.

With kernel 3.16 rc2, resuming from suspend on my GeForce 9600 GT (10de:0622)
*always* seems to fail. Screens never come out of power-saving mode, can't ssh
in. This differs from 3.15, where it sometimes succeeded and sometimes failed,
and never seemed to fail if I just booted, quickly suspended, and quickly
resumed - with 3.16 rc2, doing that causes it to fail every time.

I'll attach journalctl with drm.debug=15 from a boot where I booted to gdm,
suspended, resumed, left the system sitting for a while, then forcibly
rebooted.

This is on Fedora Rawhide, with:

kernel-3.16.0-0.rc2.git0.1.fc21.x86_64
xorg-x11-drv-nouveau-1.0.10-5.fc21.x86_64
xorg-x11-server-common-1.15.99.903-2.fc21.x86_64

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