Created attachment 35036 [details] Screenshot of picture displayed in firefox and scrolled vertical and horizontal several times For some time now I get corruptions within several applications when scrolling. Those applications include e.g. Firefox, Thunderbird, Gimp, Inkscape, Konsole (KDE4). Applications that *seem* to be safe include Gwenview and Dolphin. Those corruptions (as seen in the attached screenshot) appear with different kernels: - 2.6.32+drm2.6.33 (Ubuntu Lucid) - 2.6.33 mainline - 2.6.34-rc2 airlied - 2.6.34-rc3 So I think this is related to the driver and not the drm kernel part.
Created attachment 35040 [details] Screenshot of konsole after utilizing bash completion
It appears that this only happens with UMS. Have yet to see this with KMS.
Saw a very similar behaviour today on another machine using an X1550 while working inside kate on some script. So far I couldn't see issues inside thunderbird or firefox. The kernel I used here is the official 2.6.34-rc4. 01:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV505 CE [Radeon X1550 64-bit] [1002:715f] Subsystem: Micro-Star International Co., Ltd. Device [1462:0680] 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 26 Region 0: Memory at e0000000 (64-bit, prefetchable) [size=256M] Region 2: Memory at fdff0000 (64-bit, non-prefetchable) [size=64K] Region 4: I/O ports at ee00 [size=256] Expansion ROM at fdfc0000 [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: [58] Express (v1) Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited ExtTag+ AttnBtn- AttnInd- PwrInd- RBE- FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x16, ASPM L0s L1, Latency L0 <64ns, L1 <1us ClockPM- Suprise- LLActRep- BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x16, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- Capabilities: [80] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable+ Address: 00000000fee0100c Data: 4189 Kernel driver in use: radeon Kernel modules: radeon
Ancoron, Lucid is EoL as outlined in https://wiki.ubuntu.com/Releases. If you have a problem in a supported release, please file a new report downstream.
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