confirmed this bug. Running xubuntu 7.04 on intel 845GV chipset (onboard graphic card).
Relevant Xorg.log entries (whole file attached): Error in I830WaitLpRing(), now is 67469, start is 65468 pgetbl_ctl: 0x3ffe0001 pgetbl_err: 0x49 ipeir: 0 iphdr: 50300003 LP ring tail: a8 head: 144 len: 1f001 start 0 eir: 0 esr: 10 emr: ff7b instdone: ffc1 instpm: 0 memmode: 0 instps: 424 hwstam: fffe ier: 82 imr: 53c iir: 0 space: 148 wanted 152 (II) I810(0): [drm] removed 1 reserved context for kernel (II) I810(0): [drm] unmapping 8192 bytes of SAREA 0xf8c8d000 at 0xb7c51000 ** Attachment added: "xorg log" http://librarian.launchpad.net/7472944/Xorg.0.log.old -- xserver-xorg-driver-i810: Error in I830WaitLpRing(), now is -99922196, start is -99924197 https://bugs.launchpad.net/bugs/56501 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs