Nouveau - Jul 2009 - [Bug 22867] New: [KMS] black screen on nouveau.ko module load

http://bugs.freedesktop.org/show_bug.cgi?id=22867

           Summary: [KMS] black screen on nouveau.ko module load
           Product: xorg
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: slyfox at inbox.ru
         QAContact: xorg-team at lists.x.org


Created an attachment (id=27870)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=27870)
nouveau_dmesg_before_xorg

I'm trying to use nouveau on integrated 6150SE [1].
Gentoo distro.
linux: today's(2009-07-21) merged linus/master + nouveau/master

When I modprobe module - I get black screen. Starting Xorg does not help
(according to logs all OK). UMS mode worked mostly fine for me some weeks ago.
Then it become quite unstable (xorg crashes in pixman), I temporarily switched
to vesa and didn't try it since.

Attaching:
* dmesg before Xorg start
* Xorg.o.log
* dmesg after Xorg shutdown

[1]
00:0d.0 VGA compatible controller: nVidia Corporation GeForce 6150SE nForce 430
(rev a2) (prog-if 00 [VGA controller])
        Subsystem: ASRock Incorporation Device 03d0
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort-
<MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 21
        Region 0: Memory at de000000 (32-bit, non-prefetchable) [size=16M]
        Region 1: Memory at c0000000 (64-bit, prefetchable) [size=256M]
        Region 3: Memory at dd000000 (64-bit, non-prefetchable) [size=16M]
        Expansion ROM at dffc0000 [disabled] [size=128K]
        Capabilities: [48] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+ Count=1/1
Enable-
                Address: 0000000000000000  Data: 0000
        Kernel modules: nouveau


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--- Comment #1 from Sergei Trofimovich <slyfox at inbox.ru>  2009-07-21
01:41:40 PST ---
Created an attachment (id=27871)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=27871)
Xorg.0.log in KMS


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--- Comment #2 from Sergei Trofimovich <slyfox at inbox.ru>  2009-07-21
01:42:12 PST ---
Created an attachment (id=27872)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=27872)
nouveau_dmesg_after_xorg


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S?ren Sandmann Pedersen <sandmann at daimi.au.dk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |sandmann at daimi.au.dk




--- Comment #3 from S?ren Sandmann Pedersen <sandmann at daimi.au.dk> 
2009-07-21 02:40:59 PST ---
Do you have a backtrace of the crashes in pixman?

Thanks.


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Renato Caldas <seventhguardian at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |seventhguardian at gmail.com
             Status|NEW                         |RESOLVED
         Resolution|                            |DUPLICATE




--- Comment #4 from Renato Caldas <seventhguardian at gmail.com> 
2009-07-21 03:54:26 PST ---


*** This bug has been marked as a duplicate of bug 22179 ***


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--- Comment #5 from Sergei Trofimovich <slyfox at inbox.ru>  2009-07-21
06:06:49 PST ---
(In reply to comment #3)
> Do you have a backtrace of the crashes in pixman?
Nope. I think it's a nouveau's problem at that time. Those segfaults
were quite
rare (~30 minutes after X start) and didn't appear in vesa. I switched to
UMS+nouveau again to catch them again. Will report if any occur.


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--- Comment #6 from Sergei Trofimovich <slyfox at inbox.ru>  2009-07-22
00:20:37 PST ---
> > Do you have a backtrace of the crashes in pixman?
> Nope. I think it's a nouveau's problem at that time. Those
segfaults were quite
> rare (~30 minutes after X start) and didn't appear in vesa. I switched
to
> UMS+nouveau again to catch them again. Will report if any occur.
> 
Xorg survived typical day workload, so I'm taking back my whine about pixman
crash.


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