Setup shortcut keys not working
- by Tim
In my Ubuntu 12.04, in keyboard settings, I didn't find a shortcut
key for restarting X, so in "Customer Shorcut", I set up
Ctrl+Alt+Backspace for command sudo restart lightdm. But after
that the shortcut doesn't work. Is it because it requires root
privilege?
Also I have a SysRq key on my keyboard, which I think to be the
"Magic SysReq Key". My SysRq key is shared with PrtSc key (for
screen shoot), and is in blue which means I have to press Fn key at
the same time to invoke SysRq instead of PrtSC. But every time I
press Fn+SysRq, it always shoots a photo of the screen, same as just
hitting PrtSc i.e. without hitting Fn. I wonder how to use the Magic
SysReq Key? Does it mean the shortcut has not been linked to any command that is supposed for Magic SysReq Key yet?
PS: My laptop is Lenovo T400 and OS is Ubuntu 12.04.
Thanks!