Mats Ahlgren, this bug was reported a while ago and there hasn't been
any activity in it recently. We were wondering if this is still an
issue? If so, could you please test for this with the latest development
release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in
the development release from a Terminal
(Applications->Accessories->Terminal), as it will automatically gather
and attach updated debug information to this report:

apport-collect -p xorg-server REPLACE-WITH-BUG-NUMBER

Please note, given you already have done this in a prior release,
performing this on a release prior to Trusty would not be helpful.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

** Changed in: xorg-server (Ubuntu)
   Importance: Undecided => Low

** Changed in: xorg-server (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/768567

Title:
  x11 keyboard: xkb pointer emulation broken and hard freezing, 100%
  reproducible

Status in “xorg-server” package in Ubuntu:
  Incomplete

Bug description:
  This worked before absolutely just fine in karmic koala, but now it is
  crashing and bringing down the entire operating system. ctrl-alt-f1
  and ctrl-alt-bksp are not working, and a hard reboot is required.

  ___Steps to reproduce___

  Add a custom symbol file and load it via xkbcomp.
  The file which produces this behavior is attached and in 
/usr/share/X11/xkb/symbols/reachable

  ___Instructions for how to use xkb___

  Run [xkbcomp -w 4 schema.txt $DISPLAY], where schema.txt contains the
  output of [setxkbmap -print], but with '+reachable' added to the
  xkb_symbols clause.

  ___Symptoms___

  Holding down right-alt+i should normally produce the Up Arrow key, but
  in this version of the operating system, the system will hard-freeze,
  such that no keyboard or mouse input seems to arrive at the screen at
  all. This may take a few keystrokes, or holding it down so it
  autorepeats, to trigger the freeze. Otherwise the arrow key does not
  seem to work (as it had before). This can also be replicated on any
  window, but works reliably on chromium while holding down
  ctrl+(ralt+[) and holding it down.

  Furthermore, if you hit shift-alt-numlk to enable Mouse Keys, you will
  be able to emulate the mouse buttons, via ralt+h,n,m. These used to
  work just fine in karmic, but now whenever they are pressed, on
  keydown (I think), the pointer jumps a large way across the screen.
  The amount jumped is roughly described as follows: If the pointer is
  on the bottom-right portion of the screen, the pointer jumps a few
  hundred pixels to the left and slightly fewer (but still a few hundred
  pixels) upwards. If the point is on the bottom-left portion of the
  screen, the pointer jumps up and to the left a few hundred pixels, but
  a bit less than before, and now more towards the direction of the top-
  left corner. If the pointer is in the top-left corner of the screen,
  the pointer jumps much less than a hundred pixels, in the direction of
  the top left corner. It's as if every time any mouse button is
  pressed, the pointer leaps towards the left side of the screen, and
  moves slightly towards the top-left corner of the screen, each time
  jumping a smaller and smaller amount, such that it never quite reaches
  there.

  If none of these keys are pressed, the system seems otherwise fairly
  stable (I am writing this bug right now with this custom setting, but
  if I use any of these particular key combos, my system will hard-
  freeze and I will lose my bug report...).

  Additionally I mention the following for completeness: This is
  probably unrelated to the fact that in karmic, every few hours when
  using this setup, all keyboard input will become impossible. The mouse
  button will still work, but every time one wishes to type a letter,
  one has to press and hold a key; apparently, autorepeat is able to
  make the keys work, but the first press does not input anything. Thus
  typing 'ctrl-S' would take about 5 seconds, since you had to hold down
  ctrl so it would be autorepeating, then hold down S so it would be
  autorepeating. This is probably a separate issue from the one I am
  reporting now.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: xserver-common 2:1.7.6-2ubuntu7.5
  ProcVersionSignature: Ubuntu 2.6.32-31.61-generic 2.6.32.32+drm33.14
  Uname: Linux 2.6.32-31-generic x86_64
  NonfreeKernelModules: fglrx
  Architecture: amd64
  Date: Thu Apr 21 15:24:05 2011
  EcryptfsInUse: Yes
  InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/zsh
  SourcePackage: xorg-server

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