Comment 93 for bug 28326

I am using the i810 driver on a Lenovo X60 tablet running kubuntu/feisty. lspci calls my video device an "Intel Corporation Mobile 945GM/PM/GMS/940GML and 945GT Express Memory Controller Hub (rev 03)". When I resume from suspend on my machine, about half of the time the X server will start, freeze, and restart in an infinite loop. The X log from this crash contains the following:

  Error in I830WaitLpRing(), now is 353619, start is 351618
  pgetbl_ctl: 0x3ffc0001 pgetbl_err: 0x0
  ipeir: 0 iphdr: c000720
  LP ring tail: 8 head: 18 len: 1f001 start 0
  eir: 0 esr: 0 emr: ffff
  instdone: ffc1 instpm: 0
  memmode: 306 instps: f84cc
  hwstam: ffff ier: a2 imr: ffff iir: 0
  space: 8 wanted 80
  DRIUnlock called when not locked
  (II) I810(0): [drm] removed 1 reserved context for kernel
  (II) I810(0): [drm] unmapping 8192 bytes of SAREA 0xf8fdf000 at 0xb7c25000

  Fatal server error:
  lockup

This bug appears to be related to several others: 5774 (which has been closed), 10258, 10472.. There are also a number of people reporting this bug on launchpad (https://launchpad.net/bugs/28326). I have also tried the modesetting version if the i810 driver, which did not help.