[Bug 548377] [NEW] [RV410] KMS radeon broken after suspend

[Tormod Volden]

Public bug reported:

2.6.32-17-generic is broken after suspend: Black screen, can only see the cursor. The cursor changes style (text input etc) when moving around the screen. If I switch to a console, these messages are flooding:
kernel: [ 3654.313890] [drm:radeon_cs_ioctl] *ERROR* Faild to schedule IB !
kernel: [ 3654.319631] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(11).

With linux-image-2.6.34-999-generic_2.6.34-999.201003251003_i386.deb
(mainline PPA) everything is fine.

01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Radeon Mobility X700 (PCIE) [1002:5653]
	Subsystem: Acer Incorporated [ALI] Device [1025:0070]
	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: 32 bytes
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at d0000000 (32-bit, prefetchable) [size=128M]
	Region 1: I/O ports at 2000 [size=256]
	Region 2: Memory at c8100000 (32-bit, non-prefetchable) [size=64K]
	[virtual] Expansion ROM at c8120000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: radeon
	Kernel modules: radeon

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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[RV410] KMS radeon broken after suspend
https://bugs.launchpad.net/bugs/548377
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