Nov 26, 2010

Alt+Print Screen is not working in Ubuntu 10.10

After I upgrade to Ubuntu 10.10 Maverick, Alt+PrintScreen key combination to take a screenshot of current window is not working. Actually, it is because Alt+PrtScn is in conflict with Magic SysRq key.

To make Alt+PrtScn work again in Ubuntu 10.10 you should disable Magic SysRq key with this command in terminal:
sudo sysctl -w kernel.sysrq=0

If the setting disappears after reboot, just add following into the file : /etc/sysctl.conf
kernel.sysrq = 0

To enable Magic SysRq key, use:
sysctl -w kernel.sysrq=1

Reade more about the bug