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[Launchpad Bug Tracker <520546@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package console-setup - 1.178ubuntu9.2

---------------
console-setup (1.178ubuntu9.2) cosmic; urgency=medium

  * Call setupcon --force only when debian-installer is active
    and always redirect output to /dev/null to not block. (LP: #520546)

 -- Balint Reczey <rbalint@xxxxxxxxxx>  Tue, 23 Apr 2019 13:55:23 +0200

** Changed in: console-setup (Ubuntu Cosmic)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/520546

Title:
  Alt+KEY incorrectly behaves like Ctrl+Alt+KEY, and/or unwanted VT
  switch from Alt+Left/Right

Status in console-setup package in Ubuntu:
  Fix Released
Status in kbd package in Ubuntu:
  In Progress
Status in xorg-server package in Ubuntu:
  Invalid
Status in console-setup source package in Xenial:
  Confirmed
Status in kbd source package in Xenial:
  Confirmed
Status in xorg-server source package in Xenial:
  Confirmed
Status in console-setup source package in Bionic:
  Fix Released
Status in kbd source package in Bionic:
  Confirmed
Status in linux source package in Bionic:
  Confirmed
Status in xorg-server source package in Bionic:
  Invalid
Status in console-setup source package in Cosmic:
  Fix Released
Status in kbd source package in Cosmic:
  Confirmed
Status in linux source package in Cosmic:
  Confirmed
Status in xorg-server source package in Cosmic:
  Invalid
Status in console-setup source package in Disco:
  Fix Released
Status in kbd source package in Disco:
  Confirmed
Status in linux source package in Disco:
  Confirmed
Status in xorg-server source package in Disco:
  Invalid
Status in console-setup source package in Eoan:
  Fix Released
Status in kbd source package in Eoan:
  In Progress
Status in linux source package in Eoan:
  Confirmed
Status in xorg-server source package in Eoan:
  Invalid

Bug description:
  (console-setup)
  [Impact]

   * keyboard-configuration's postinst changes keyboard mode breaking X
  keys.

  [Test Case]

   * Ssh to a system or open a terminal and unset DISPLAY

      $ echo $DISPLAY

      $

   * Check kbd mode, should be raw (set by kbd_mode -s) or unknown:
     $ sudo kbd_mode
     The keyboard is in some unknown mode
     $ sudo kbd_mode
     The keyboard is in raw (scancode) mode
     $

     On Xenial X runs on VT7 thus the graphical environment is not affected in the default configuration, but the keyboard-configuration postinst maintaner script still changes mode on vt1-6, thus at the beginning set VT1 to raw mode to observe the change:
     $  sudo kbd_mode -s -C /dev/tty1
     $ sudo kbd_mode -C /dev/tty1
     The keyboard is in raw (scancode) mode

   * Install or reinstall kbd-configuration

     $ sudo apt install --reinstall keyboard-configuration
     ...
     Setting up keyboard-configuration (1.178ubuntu11) ...
     Your console font configuration will be updated the next time your system
     boots. If you want to update it now, run 'setupcon' from a virtual console.
     ...

   * With the fixed package you should see the note above and the kbd
  mode must stay the same (on Xenial check VT1: sudo kbd_mode -C
  /dev/tty1):

     $ sudo kbd_mode
     The keyboard is in raw (scancode) mode
     $

   * The unfixed package sets the kbd mode to unicode:

     $  sudo kbd_mode
     The keyboard is in Unicode (UTF-8) mode
     $

  [Regression Potential]

   * The change may break debian-installer changing the keyboard mode, this should also be tested.
   * In general changing the postinst script may make the package unable to install, but this is tested in generic environment and the change to the postinst script is very small.

  [Original Bug Text]
  WORKAROUND:

  sudo kbd_mode -s

  ORIGINAL DESCRIPTION:

  I'm running Ubuntu Lucid development branch.

  Pressing alt-f2 switches the screen to the second virtual terminal.
  Alt-f3 does the same to the third and so on. I expected alt-f2 to open
  the run dialog.

  I'm pretty sure that my keyboard is not malfunctioning as I can use
  all my applications normally. (Pressing O and Ctrl-O do not have the
  same effect.)

  I'm not sure which package I should file this bug against. I'll
  happily do an apport-collect once I know.

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