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From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 57349] New: [nouveau, EFI] xf86-video-nouveau-1.0.2 and above fail to find device with X 1.13.0
Date: Tue, 20 Nov 2012 22:36:37 +0000	[thread overview]
Message-ID: <bug-57349-502@http.bugs.freedesktop.org/> (raw)


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https://bugs.freedesktop.org/show_bug.cgi?id=57349

          Priority: medium
            Bug ID: 57349
          Assignee: dri-devel@lists.freedesktop.org
           Summary: [nouveau, EFI] xf86-video-nouveau-1.0.2 and above fail
                    to find device with X 1.13.0
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: bonbons67@internet.lu
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: XOrg CVS
         Component: DRM/other
           Product: DRI

Commit 2f48b8f462a03cb92db9e9a7ae1957eb27473965 "nouveau: add platform bus
support" added in -1.0.2 prevents X from starting on a MacBookAir booted via
EFI.

As debugged on IRC with airlied, the cause is that kernel reports "boot_vga"
being "0" for the GeForce 9400M (C79) when efifb is not being used (not
compiled into kernel whereas nouveau is). [booting with efifb built-in causes
"boot_vga" to be "1"]

When there is no other GPU around and KMS (+ fbcon) is active on that GPU X
should accept it as well (or kernel adjust boot_vga as needed even while efifb
is not compiled in/used).

Kernel used if 3.7-rc5 (with efifb disabled), 3.7-rc6 (with efifb built-in)

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             reply	other threads:[~2012-11-20 22:36 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-20 22:36 bugzilla-daemon [this message]
2014-08-16 22:28 ` [Bug 57349] [nouveau, EFI] xf86-video-nouveau-1.0.2 and above fail to find device with X 1.13.0 bugzilla-daemon

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