** Package changed: xserver-xorg-video-intel (Ubuntu) => linux (Ubuntu)

** Summary changed:
- screen locks up with mouse cursor moving
+ [precise] screen locks up with mouse cursor moving

** Description changed:

  screen locks up with mouse cursor moving
  Started somewhere around beta1.
  In my case triggered reliaebly by running NX client (background or 
foreground) but only to machines on LAN.
  
  Unfortunelty problem was mis-identified by ubuntu-bug as an duplicate 
therefor reported manually.
  Detailed crash report attached
  
  intel_gpu_top showed:
  render busy:   70%:
  bitsream busy: 100%
  blitter busy: 100%
  GAM:   100%:
  No other tasks appeared and GPU got very hot.
  
+ Update:
+ Using backported from Quantal Kerenl (3.4.0-1.x) solves the problem.
+ 
  Xorg.log tail:
-  [ 23313.122] [mi] EQ overflowing.  Additional events will be discarded until 
existing events are processed.
-  [ 23313.122]
-  Backtrace:
-  [ 23313.125] 0: /usr/bin/X (xorg_backtrace+0x37) [0xb7732627]
-  [ 23313.125] 1: /usr/bin/X (mieqEnqueue+0x223) [0xb7710973]
-  [ 23313.125] 2: /usr/bin/X (0xb75aa000+0x4cc25) [0xb75f6c25]
-  [ 23313.125] 3: /usr/bin/X (xf86PostMotionEventM+0xf9) [0xb7637d99]
-  [ 23313.125] 4: /usr/lib/xorg/modules/input/evdev_drv.so (0xb6a7d000+0x3c3d) 
[0xb6a80c3d]
-  [ 23313.125] 5: /usr/lib/xorg/modules/input/evdev_drv.so (0xb6a7d000+0x524f) 
[0xb6a8224f]
-  [ 23313.125] 6: /usr/bin/X (0xb75aa000+0x782b1) [0xb76222b1]
-  [ 23313.126] 7: /usr/bin/X (0xb75aa000+0x9fce8) [0xb7649ce8]
-  [ 23313.126] 8: (vdso) (__kernel_sigreturn+0x0) [0xb7587400]
-  [ 23313.126] 9: (vdso) (__kernel_vsyscall+0x10) [0xb7587424]
-  [ 23313.126] 10: /lib/i386-linux-gnu/libc.so.6 (ioctl+0x19) [0xb72d7869]
-  [ 23313.126] 11: /usr/lib/i386-linux-gnu/libdrm.so.2 (drmIoctl+0x34) 
[0xb701a8c4]
-  [ 23313.126] 12: /usr/lib/i386-linux-gnu/libdrm_intel.so.1 
(0xb6f94000+0x7665) [0xb6f9b665]
-  [ 23313.126] 13: /usr/lib/i386-linux-gnu/libdrm_intel.so.1 
(drm_intel_bo_mrb_exec+0x4a) [0xb6f961da]
-  [ 23313.126] 14: /usr/lib/xorg/modules/drivers/intel_drv.so 
(0xb6fc8000+0x7e88) [0xb6fcfe88]
-  [ 23313.126] 15: /usr/lib/xorg/modules/drivers/intel_drv.so 
(0xb6fc8000+0xe4cd) [0xb6fd64cd]
-  [ 23313.126] 16: /usr/lib/xorg/modules/drivers/intel_drv.so 
(0xb6fc8000+0xfaee) [0xb6fd7aee]
-  [ 23313.126] 17: /usr/lib/xorg/modules/drivers/intel_drv.so 
(0xb6fc8000+0x3212c) [0xb6ffa12c]
-  [ 23313.126] 18: /usr/bin/X (miCopyRegion+0x17c) [0xb770e81c]
-  [ 23313.126] 19: /usr/bin/X (miDoCopy+0x42f) [0xb770ed7f]
-  [ 23313.126] 20: /usr/lib/xorg/modules/drivers/intel_drv.so 
(0xb6fc8000+0x32d26) [0xb6ffad26]
-  [ 23313.126] 21: /usr/bin/X (0xb75aa000+0x1107d2) [0xb76ba7d2]
-  [ 23313.126] 22: /usr/bin/X (0xb75aa000+0x33263) [0xb75dd263]
-  [ 23313.126] 23: /usr/bin/X (0xb75aa000+0x3786d) [0xb75e186d]
-  [ 23313.126] 24: /usr/bin/X (0xb75aa000+0x252aa) [0xb75cf2aa]
-  [ 23313.126] 25: /lib/i386-linux-gnu/libc.so.6 (__libc_start_main+0xf3) 
[0xb720e4d3]
-  [ 23313.126] 26: /usr/bin/X (0xb75aa000+0x255e9) [0xb75cf5e9]
-  [ 23313.126] [mi] These backtraces from mieqEnqueue may point to a culprit 
higher up the stack.
-  [ 23313.126] [mi] mieq is *NOT* the cause.  It is a victim.
-  [ 23313.786] [mi] EQ overflow continuing.  100 events have been dropped.
-  [ 23313.786]
+  [ 23313.122] [mi] EQ overflowing.  Additional events will be discarded until 
existing events are processed.
+  [ 23313.122]
+  Backtrace:
+  [ 23313.125] 0: /usr/bin/X (xorg_backtrace+0x37) [0xb7732627]
+  [ 23313.125] 1: /usr/bin/X (mieqEnqueue+0x223) [0xb7710973]
+  [ 23313.125] 2: /usr/bin/X (0xb75aa000+0x4cc25) [0xb75f6c25]
+  [ 23313.125] 3: /usr/bin/X (xf86PostMotionEventM+0xf9) [0xb7637d99]
+  [ 23313.125] 4: /usr/lib/xorg/modules/input/evdev_drv.so (0xb6a7d000+0x3c3d) 
[0xb6a80c3d]
+  [ 23313.125] 5: /usr/lib/xorg/modules/input/evdev_drv.so (0xb6a7d000+0x524f) 
[0xb6a8224f]
+  [ 23313.125] 6: /usr/bin/X (0xb75aa000+0x782b1) [0xb76222b1]
+  [ 23313.126] 7: /usr/bin/X (0xb75aa000+0x9fce8) [0xb7649ce8]
+  [ 23313.126] 8: (vdso) (__kernel_sigreturn+0x0) [0xb7587400]
+  [ 23313.126] 9: (vdso) (__kernel_vsyscall+0x10) [0xb7587424]
+  [ 23313.126] 10: /lib/i386-linux-gnu/libc.so.6 (ioctl+0x19) [0xb72d7869]
+  [ 23313.126] 11: /usr/lib/i386-linux-gnu/libdrm.so.2 (drmIoctl+0x34) 
[0xb701a8c4]
+  [ 23313.126] 12: /usr/lib/i386-linux-gnu/libdrm_intel.so.1 
(0xb6f94000+0x7665) [0xb6f9b665]
+  [ 23313.126] 13: /usr/lib/i386-linux-gnu/libdrm_intel.so.1 
(drm_intel_bo_mrb_exec+0x4a) [0xb6f961da]
+  [ 23313.126] 14: /usr/lib/xorg/modules/drivers/intel_drv.so 
(0xb6fc8000+0x7e88) [0xb6fcfe88]
+  [ 23313.126] 15: /usr/lib/xorg/modules/drivers/intel_drv.so 
(0xb6fc8000+0xe4cd) [0xb6fd64cd]
+  [ 23313.126] 16: /usr/lib/xorg/modules/drivers/intel_drv.so 
(0xb6fc8000+0xfaee) [0xb6fd7aee]
+  [ 23313.126] 17: /usr/lib/xorg/modules/drivers/intel_drv.so 
(0xb6fc8000+0x3212c) [0xb6ffa12c]
+  [ 23313.126] 18: /usr/bin/X (miCopyRegion+0x17c) [0xb770e81c]
+  [ 23313.126] 19: /usr/bin/X (miDoCopy+0x42f) [0xb770ed7f]
+  [ 23313.126] 20: /usr/lib/xorg/modules/drivers/intel_drv.so 
(0xb6fc8000+0x32d26) [0xb6ffad26]
+  [ 23313.126] 21: /usr/bin/X (0xb75aa000+0x1107d2) [0xb76ba7d2]
+  [ 23313.126] 22: /usr/bin/X (0xb75aa000+0x33263) [0xb75dd263]
+  [ 23313.126] 23: /usr/bin/X (0xb75aa000+0x3786d) [0xb75e186d]
+  [ 23313.126] 24: /usr/bin/X (0xb75aa000+0x252aa) [0xb75cf2aa]
+  [ 23313.126] 25: /lib/i386-linux-gnu/libc.so.6 (__libc_start_main+0xf3) 
[0xb720e4d3]
+  [ 23313.126] 26: /usr/bin/X (0xb75aa000+0x255e9) [0xb75cf5e9]
+  [ 23313.126] [mi] These backtraces from mieqEnqueue may point to a culprit 
higher up the stack.
+  [ 23313.126] [mi] mieq is *NOT* the cause.  It is a victim.
+  [ 23313.786] [mi] EQ overflow continuing.  100 events have been dropped.
+  [ 23313.786]

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https://bugs.launchpad.net/bugs/988008

Title:
  [precise] screen locks up with mouse cursor moving

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