[Bug 60772] New: xf86-video-nouveau fails to modprobe nouveau: KMS not enabled - bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ

From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: [Bug 60772] New: xf86-video-nouveau fails to modprobe nouveau: KMS not enabled
Date: Wed, 13 Feb 2013 08:59:57 +0000	[thread overview]
Message-ID: <bug-60772-8800@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=60772

          Priority: medium
            Bug ID: 60772
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
           Summary: xf86-video-nouveau fails to modprobe nouveau: KMS not
                    enabled
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: hkmaly-jG/AHqQBv7lBDgjK7y7TUQ@public.gmane.org
          Hardware: x86 (IA32)
            Status: NEW
           Version: unspecified
         Component: Driver/nouveau
           Product: xorg

When nouveau kernel module is build as module and not inserted manually, X
server won't start with message "[drm] KMS not enabled".

Older versions (like xf86-video-nouveau-0.0.16) didn't have that problem.

Reason is in function NVHasKMS, where you FIRST call
drmCheckModesettingSupported and THEN nouveau_device_open, meaning
drmCheckModesettingSupported will fail.

When the calls are switched, nouveau_device_open will call modprobe and insert
the nouveau module, so later drmCheckModesettingSupported works correctly.

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