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

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https://bugs.launchpad.net/bugs/1044955

Title:
  Xorg.log contains "BUG: triggered 'if (!dev->valuator ||
  dev->valuator->numAxes < 2)'"

Status in “xserver-xorg-input-evdev” package in Ubuntu:
  Confirmed

Bug description:
  If I use Displays... to resize the display of the external monitor I
  get the following messages, repeated about forty times (with different
  time stamp, obviously).

  [ 12472.040] (II) intel(0): Allocated new frame buffer 2752x1050 stride 
11264, tiled
  [ 12472.075] BUG: triggered 'if (!dev->valuator || dev->valuator->numAxes < 
2)'
  BUG: ../../dix/getevents.c:850 in scale_to_desktop()
  [ 12472.075]
  Backtrace:
  [ 12472.075] 0: /usr/bin/X (xorg_backtrace+0x26) [0x7f922a950846]
  [ 12472.075] 1: /usr/bin/X (0x7f922a7c8000+0x622fe) [0x7f922a82a2fe]
  [ 12472.075] 2: /usr/bin/X (0x7f922a7c8000+0x62f6d) [0x7f922a82af6d]
  [ 12472.075] 3: /usr/bin/X (GetPointerEvents+0xe4) [0x7f922a82c304]
  [ 12472.075] 4: /usr/bin/X (0x7f922a7c8000+0x1730a6) [0x7f922a93b0a6]
  [ 12472.075] 5: /usr/bin/X (miPointerWarpCursor+0xe7) [0x7f922a93b527]
  [ 12472.075] 6: /usr/bin/X (0x7f922a7c8000+0x871b1) [0x7f922a84f1b1]
  [ 12472.075] 7: /usr/bin/X (0x7f922a7c8000+0x173a7c) [0x7f922a93ba7c]
  [ 12472.075] 8: /usr/bin/X (0x7f922a7c8000+0x112183) [0x7f922a8da183]
  [ 12472.075] 9: /usr/bin/X (0x7f922a7c8000+0xfd06e) [0x7f922a8c506e]
  [ 12472.075] 10: /usr/bin/X (RRPointerScreenConfigured+0x75) [0x7f922a8c5295]
  [ 12472.075] 11: /usr/bin/X (RRScreenSizeNotify+0x124) [0x7f922a8c7774]
  [ 12472.075] 12: /usr/bin/X (0x7f922a7c8000+0xc9876) [0x7f922a891876]
  [ 12472.075] 13: /usr/bin/X (ProcRRSetScreenSize+0x1e1) [0x7f922a8c7c81]
  [ 12472.076] 14: /usr/bin/X (0x7f922a7c8000+0x4e8a1) [0x7f922a8168a1]
  [ 12472.076] 15: /usr/bin/X (0x7f922a7c8000+0x3d7ba) [0x7f922a8057ba]
  [ 12472.076] 16: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) 
[0x7f922898376d]
  [ 12472.076] 17: /usr/bin/X (0x7f922a7c8000+0x3daad) [0x7f922a805aad]

  System information

  ThinkPad X220

  Ubuntu 12.04 with some packages upgraded to Quantal

  linux-image-3.5.0-10-generic              3.5.0-10.10 
  linux-image-extra-3.5.0-10-generic        3.5.0-10.10 
  udev                    175-0ubuntu10  
  xserver-xorg                              1:7.6+12ubuntu1 
  xserver-xorg-core                         2:1.11.4-0ubuntu10.7 
  xserver-xorg-video-intel                  2:2.17.0-1ubuntu4.1

  $ uname -a
  Linux tenerife 3.5.0-10-generic #10-Ubuntu SMP Mon Aug 13 15:23:58 UTC 2012 
x86_64 x86_64 x86_64 GNU/Linux

  $ lspci -s 00:02.0 -v
  00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core 
Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA 
controller])
        Subsystem: Lenovo Device 21da
        Flags: bus master, fast devsel, latency 0, IRQ 44
        Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
        Memory at e0000000 (64-bit, prefetchable) [size=256M]
        I/O ports at 5000 [size=64]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: <access denied>
        Kernel driver in use: i915
        Kernel modules: i915

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