[Bug 29222] New: X cannot start up, screen flickers in console mode

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=29222

           Summary: X cannot start up, screen flickers in console mode
           Product: Drivers
           Version: 2.5
    Kernel Version: 2.6.38-rc5
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
        AssignedTo: drivers_video-dri at kernel-bugs.osdl.org
        ReportedBy: johannes at sipsolutions.net
        Regression: Yes


This is a regression from 2.6.37 that has been there throughout the RCs -- on
my macbook 5,1 the X server now refuses to start up and the screen just
flickers in console mode. I can press ctrl-alt-del to reboot.

The device is

02:00.0 VGA compatible controller: nVidia Corporation C79 [GeForce 9400M] (rev
b1) (prog-if 00 [VGA controller])
    Subsystem: Apple Computer Inc. Device 00aa
    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, Cache Line Size: 256 bytes
    Interrupt: pin A routed to IRQ 23
    Region 0: Memory at 92000000 (32-bit, non-prefetchable) [size=16M]
    Region 1: Memory at 80000000 (64-bit, prefetchable) [size=256M]
    Region 3: Memory at 90000000 (64-bit, prefetchable) [size=32M]
    Region 5: I/O ports at 1000 [size=128]
    Expansion ROM at 93000000 [disabled] [size=128K]
    Capabilities: [60] Power Management version 2
        Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
        Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
    Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
        Address: 0000000000000000  Data: 0000
    Kernel driver in use: nouveau

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