Nouveau - Jan 2013 - [Bug 59742] New: Displayport attached monitor stopped working in xorg and init 3, after kernel upgrade

https://bugs.freedesktop.org/show_bug.cgi?id=59742

          Priority: medium
            Bug ID: 59742
          Assignee: nouveau at lists.freedesktop.org
           Summary: Displayport attached monitor stopped working in xorg
                    and init 3, after kernel upgrade
        QA Contact: xorg-team at lists.x.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: shawn at systemtemplar.org
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: 7.7 (2011)
         Component: Driver/nouveau
           Product: xorg

Created attachment 73492
  --> https://bugs.freedesktop.org/attachment.cgi?id=73492&action=edit
dmesg | grep nouvea, with 3.6.10-4

Hello, I am running fedora 18. I have 3 monitors hooked up to a geforce gtx 660
ti, 2 via the DVI connectors, and 1 via the displayport connector. With Kernel
3.6.10-4, everything works fine. Upon upgrading to 3.7.2-201, the displayport
connected monitor stops working and says unsupported display mode, optimal
resolution is xx (the monitor is set to that resolution and hz).

The unsupported display mode is displayed even in runlevel 3. I have changed
the monitor connectors around and whichever is connected via displayport stops
working. 

If I boot back to 3.6.10-4, everything works fine.

If I do a dmesg |grep nouveau , on 3.7.2-201, I see: 
  2.012167] nouveau E[     DRM] failed to create kernel channel, -22            

This message does not get displayed with 3.6.10-4.

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--- Comment #1 from Shawn Sterling <shawn at systemtemplar.org> ---
Created attachment 73493
  --> https://bugs.freedesktop.org/attachment.cgi?id=73493&action=edit
dmesg | grep nouvea, with 3.7.2-210

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--- Comment #2 from Shawn Sterling <shawn at systemtemplar.org> ---
Created attachment 73494
  --> https://bugs.freedesktop.org/attachment.cgi?id=73494&action=edit
lspci -vv on the card itself.

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--- Comment #3 from Shawn Sterling <shawn at systemtemplar.org> ---
Created attachment 73495
  --> https://bugs.freedesktop.org/attachment.cgi?id=73495&action=edit
full kernel_log, with 3.6.10-4

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--- Comment #4 from Shawn Sterling <shawn at systemtemplar.org> ---
Created attachment 73496
  --> https://bugs.freedesktop.org/attachment.cgi?id=73496&action=edit
full kernel_log, with 3.7.2-201

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--- Comment #5 from Marcin Slusarz <marcin.slusarz at gmail.com> ---
Should be fixed in 3.7.3 / 3.8-rc4

https://bugs.freedesktop.org/show_bug.cgi?id=58735

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--- Comment #6 from Shawn Sterling <shawn at systemtemplar.org> ---
confirmed fixed in 3.7.4-204.

Have a good day.

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Shawn Sterling <shawn at systemtemplar.org> changed:

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

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