Comment 66 for bug 348332

I believe that I suffered from this same bug (I suffered from a bug with the same symptoms, anyway--though I didn't try XAA as the original poster did). Like the rest of you, the problem disappeared when I upgraded to a 2.6.29 kernel; for me, it was 2.6.29-020629-generic. (I didn't try any others.)

Here's my video card info., for those interested:

01:05.0 VGA compatible controller [0300]: ATI Technologies Inc RS480 [Radeon Xpress 200G Series] [1002:5954]
 Subsystem: Hewlett-Packard Company Device [103c:2a24]
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 64 (2000ns min), Cache Line Size: 32 bytes
 Interrupt: pin A routed to IRQ 17
 Region 0: Memory at d8000000 (32-bit, prefetchable) [size=128M]
 Region 1: I/O ports at ef00 [size=256]
 Region 2: Memory at fddf0000 (32-bit, non-prefetchable) [size=64K]
 [virtual] Expansion ROM at fdd00000 [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-