I have the same problem with my hardware. Enabling the UXA acceleration the problem disappear, but I got in trouble with bug 330236
lspci -vvnn 00:02.0 VGA compatible controller [0300]: Intel Corporation 82865G Integrated Graphics Controller [8086:2572] (rev 02) Subsystem: ASUSTeK Computer Inc. Device [1043:2572] 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 Interrupt: pin A routed to IRQ 16 Region 0: Memory at f0000000 (32-bit, prefetchable) [size=128M] Region 1: Memory at fe780000 (32-bit, non-prefetchable) [size=512K] Region 2: I/O ports at eff0 [size=8] Capabilities: <access denied> Kernel modules: intelfb uname -a Linux i59508 2.6.28-7-generic #20-Ubuntu SMP Mon Feb 9 15:43:21 UTC 2009 i686 GNU/Linux lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu jaunty (development branch) Release: 9.04 Codename: jaunty Driver ii xserver-xorg-video-intel 2:2.6.1-1ubuntu2 X.Org X server -- Intel i8xx, i9xx display d -- [iG33] Running "strace glxgears" causes X to lock up https://bugs.launchpad.net/bugs/316240 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs