[Nouveau] [Bug 86537] New: [NV96] Unable to handle page request from nv50_crtc_prepare

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86537

            Bug ID: 86537
           Summary: [NV96] Unable to handle page request from
                    nv50_crtc_prepare
           Product: xorg
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: pierre.morrow at free.fr
        QA Contact: xorg-team at lists.x.org

Created attachment 109818
  --> https://bugs.freedesktop.org/attachment.cgi?id=109818&action=edit
dmesg

Hardware:
* 9600M GT (NV96)
* 9400M (NVAC)

Tested on something newer than 3.17-rc5.
Though it is not visible in the dmesg, I set "config=NvForcePost=1" which had
no effect on the issue.

When using the NV96 to drive the display - this is set before booting -, a BUG:
unable to handle kernel page request is thrown by nv50_crtc_prepare after the
fb was allocated for the NV96 - the NVAC wasn't initialised yet.

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