I feel like I should open a new bug report, as my symptoms seem really
different.
I implemented the change as described in bug report 118605.
To my horror, my system now freezes consistently.
However, I removed the ATI driver, and all my problems seem to be gone now.
sudo lspci -vvv
00:00.0 Host bridge: ATI Technologies Inc Radeon Xpress 200 Host Bridge (rev 01)
Subsystem: Hewlett-Packard Company Unknown device 2a31
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort+ >SERR- <PERR-
Latency: 64
Region 3: Memory at <ignored> (64-bit, non-prefetchable)
....
01:05.0 VGA compatible controller: ATI Technologies Inc RC410 [Radeon Xpress
200] (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Unknown device 2a31
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 64 (2000ns min), Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 10
Region 0: Memory at d0000000 (32-bit, prefetchable) [size=256M]
Region 1: I/O ports at a000 [size=256]
Region 2: Memory at feaf0000 (32-bit, non-prefetchable) [size=64K]
Expansion ROM at feac0000 [disabled] [size=128K]
Capabilities: [50] 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: [80] Message Signalled Interrupts: Mask- 64bit- Queue=0/0
Enable-
Address: 00000000 Data: 0000
--
log out or switch user results in crash
https://bugs.launchpad.net/bugs/107115
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