I'm trying to remap my right alt to behave like my right ctrl so I can use my right thumb to press the ctrl button. This is Ubuntu 12.04.
I've created the file .Xmodmap in my home folder with the following content:
clear control
clear mod1
!keycode 64 = Alt_L Meta_L
keycode 108 = Alt_R Meta_R
add control = Control_L Control_R Alt_R
add mod1 = Alt_L Meta_L
As you might guess, my left alt key has keycode 64 and my left alt key has keycode 108.
This actually works in the sense that my right alt key behaves as if I press the ctrl key.
However my left alt key now doesn't do anything anymore, which means I don't have an alt key left. This is strange given that xmodmap
gives the following output:
xmodmap: up to 4 keys per modifier, (keycodes in parentheses):
shift Shift_L (0x32), Shift_R (0x3e)
lock Caps_Lock (0x42)
control Control_L (0x25), Control_R (0x69), Alt_R (0x6c)
mod1 Alt_L (0x40), Alt_L (0xcc), Meta_L (0xcd)
mod2 Num_Lock (0x4d)
mod3
mod4 Super_L (0x85), Super_R (0x86), Super_L (0xce), Hyper_L (0xcf)
mod5 ISO_Level3_Shift (0x5c), Mode_switch (0xcb)
The strange thing is that when I remove the Alt_R mapping onto control, the alt keys work.
(ie., change the second to last line to:)
add control = Control_L Control_R
Now even my right alt behaves as an alt key which confuses me. After removing the Alt_R mapping from the control line the output of xmodmap
gives:
xmodmap: up to 4 keys per modifier, (keycodes in parentheses):
shift Shift_L (0x32), Shift_R (0x3e)
lock Caps_Lock (0x42)
control Control_L (0x25), Control_R (0x69)
mod1 Alt_L (0x40), Alt_L (0xcc), Meta_L (0xcd)
mod2 Num_Lock (0x4d)
mod3
mod4 Super_L (0x85), Super_R (0x86), Super_L (0xce), Hyper_L (0xcf)
mod5 ISO_Level3_Shift (0x5c), Mode_switch (0xcb)
Hope you guys can help.
ps. I used this website as a source.
Best Answer
You should be able to simply use Keyboard Layout >> Options >> Ctrl key position >> Right Alt as Right Ctrl, but this doesn't work. This has already been filed against Debian as Bug#663218
Start fresh by deleting
~/.Xmodmap
.Note that you do not need to clear Control and Mod1. This makes it easier to change only what you want. Your
~/.Xmodmap
shoud be: