[Bug 22461] New: [KMS] X fails to start with just a blank screen on nv4B

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org]

http://bugs.freedesktop.org/show_bug.cgi?id=22461

           Summary: [KMS] X fails to start with just a blank screen on nv4B
           Product: xorg
           Version: git
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
        ReportedBy: chalserogers-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
         QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org


Created an attachment (id=27104)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=27104)
Xorg log when the kernel doesn't panic

Using the nouveau.ko, drm.ko, and ttm.ko from nouveau/linux-2.6.  KMS sets a
nice console framebuffer, but when it comes to starting X it dies with just a
black screen.  

There might actually be multiple bugs here:
1) Sometimes, there's a pointer visible, sometimes there isn't
2) Sometimes the kernel panics and everything dies, sometimes (particularly
with drm loaded with debug=1 it seems) sshing in will work


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