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[MestreLion <launchpad@xxxxxxxxxxxxxxxx>]

Florian Sievers (#31) is right: in a clean Maverick install, 'cat
/proc/sys/kernel/sysrq' (or 'sudo sysctl -a | grep kernel.sysrq') shows
kernel.sysrq=0 , but in fact sysrq's are enabled (and eating up
Alt+PrtScn). If i set it as 'sudo sysctl -w kernel.sysrq=0', supposedly
it wouldn't change anything, since its already 0, but yet it disables
sysrqs and allows me to take windowshots again.  So currently this is
really a mess.

If this is fixed for Natty, Oneric, great. But for Maverick it is not,
so please at least issue an SRU to fix that! It is *very* annoying, and
newcomers and novice users will find this *very* frustrating, to say the
least.

In Lucid, both worlds were happy: Alt+PrnScr alone took windowshots, and
Alt+PrnScr+<somekey> triggered Sysrqs. Maverick *should* have the same
behaviour.

Also, as spoken here several times:  this is expected even from Windows
users. Sysrq's can also be triggered with Right Alt (AltGr here) +
PrnScr. Taking windowshots is *far* more common then Sysrqs (meant for
emergencies only).

Those who know what a sysrq is can easily workaround this. Most of
"screenshoters" (=regular users) can not.

Please revert to the expected behavior!

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https://bugs.launchpad.net/bugs/642792

Title:
  ALT+PrtSc not recognised: breaks built-in screenshot function

Status in Release Notes for Ubuntu:
  Invalid
Status in “compiz” package in Ubuntu:
  Invalid
Status in “linux” package in Ubuntu:
  Confirmed
Status in “metacity” package in Ubuntu:
  Invalid
Status in “compiz” source package in Maverick:
  Invalid
Status in “linux” source package in Maverick:
  Confirmed
Status in “metacity” source package in Maverick:
  Invalid

Bug description:
  Binary package hint: xkeyboard-config

  On an EN-GB keyboard (and maybe others) ALT+PrtSc is the default
  keyboard shortcut for "Take a screenshot of a window" as configured in
  System -> Preferences -> Keyboard Shortcuts. However the system
  doesn't seem to respond to that keyboard combination at all. Pressing
  ALT+PrtSc on a default Maverick install does nothing. Indeed
  attempting to _set_ that keyboard shortcut in the Keyboard Shortcuts
  dialog results in it not being registered.

  Workaround:
  sudo sysctl -w kernel.sysrq=0

  Steps to reproduce:-

  1) Try to screenshot the entire desktop with PrtSc - this works
  2) Try to take a screenshot of one active window with ALT+PrtSc - nothing happens.

  Additionally

  1) Navigate to System -> Preferences -> Keyboard Shortcuts
  2) Scroll down to Desktop -> Take a screenshot of a window, and then click that line in order to set a keyboard shortcut for the action
  3) Press ALT+PrtSc - nothing happens
  4) Press a different keyboard combination such as CTRL+PrtSc or Super/Windows+PrtSc - this works

  Additionally

  1) Open a terminal
  2) Run 'xev' and then press ALT+PrtSc. Observe data in the xev terminal window when ALT is pressed, but nothing for ALT+PrtSc

  Seems a fairly critical regression bug given we document this keyboard
  shortcut in the help, and it's very commonly used by documenters and
  people getting support. It works fine in previous releases.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.10
  Package: xkb-data 1.8-1ubuntu8
  ProcVersionSignature: Ubuntu 2.6.35-22.32-generic 2.6.35.4
  Uname: Linux 2.6.35-22-generic x86_64
  NonfreeKernelModules: nvidia
  .proc.driver.nvidia.version:
   NVRM version: NVIDIA UNIX x86_64 Kernel Module  256.53  Fri Aug 27 20:27:48 PDT 2010
   GCC version:  gcc version 4.4.5 (Ubuntu/Linaro 4.4.4-14ubuntu4)
  Architecture: amd64
  CurrentDmesg:
   [   22.090007] eth1: no IPv6 routers present
   [  691.401253] show_signal_msg: 9 callbacks suppressed
   [  691.401258] gnome-help[2307]: segfault at 35a3f08 ip 00007f9f58d3043e sp 00007ffffd377130 error 4 in libxml2.so.2.7.7[7f9f58cae000+147000]
  Date: Sun Sep 19 14:19:15 2010
  Dependencies:

  DkmsStatus:
   nvidia-current, 256.53, 2.6.35-22-generic, x86_64: installed
   nvidia-current, 256.53, 2.6.35-21-generic, x86_64: installed
   nvidia-current, 256.53, 2.6.35-20-generic, x86_64: installed
  InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
  MachineType: System manufacturer System Product Name
  PackageArchitecture: all
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=fb22b4e1-1576-4bf8-8272-15300bc7de38 ro quiet splash
  ProcEnviron:
   LANG=en_GB.utf8
   SHELL=/bin/bash
  SourcePackage: xkeyboard-config
  dmi.bios.date: 04/24/2009
  dmi.bios.vendor: Phoenix Technologies, LTD
  dmi.bios.version: ASUS P5N32-E SLI ACPI BIOS Revision 1801
  dmi.board.name: P5N32-E SLI
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: 1.XX
  dmi.chassis.asset.tag: 123456789000
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvrASUSP5N32-ESLIACPIBIOSRevision1801:bd04/24/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5N32-ESLI:rvr1.XX:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer
  glxinfo: Error: [Errno 2] No such file or directory
  system:
   distro:             Ubuntu
   codename:           maverick
   architecture:       x86_64
   kernel:             2.6.35-22-generic

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