Bug 29222

Summary: X cannot start up, screen flickers in console mode
Product: Drivers Reporter: Johannes Berg (johannes)
Component: Video(DRI - non Intel)Assignee: drivers_video-dri
Severity: normal CC: florian, maciej.rutecki, rjw
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 2.6.38-rc5 Tree: Mainline
Regression: Yes
Bug Depends on:    
Bug Blocks: 27352    

Description Johannes Berg 2011-02-16 08:56:01 UTC
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
Comment 1 Johannes Berg 2011-02-18 11:39:53 UTC
Err, ok, upon closer investigation it seems that I didn't even have nouveau even though it says "Kernel driver in use: nouveau"?? Or the recent nouveau fixes fixed it now, not sure. In any case, it's gone.