How to set a custom keymap and make sure, that it is not overwritten by system?

Question

I use custom keymap, that diffentiates between left and right Ctrl:

remove control = Control_R
clear mod3
add Mod3 = Control_R

When I load it with xmodmap myxmap, it works only as long, as one of the events happens:

• Connect a HID (USB mouse, keyboard)
• Press CtrlAltFx to switch to text terminal

After that, I have to repeat the xmodmap myxmap command. I lived with it for over a year now, but it gets more and more annoying. Is there any way to tell the Linux Mint (Cinnamon edition) to keep my own version of assignment of Control_R key?

The issue concerns (but is not limited to) Linux Mint 14-16 Cinnamon 64 bit.

Solution

The best solution is probably to create a custom keymap.

A good step-by-step answer can be found here in this SuperUser Q&A titled: How to change console keymap in Linux?

Comments

[SarahG]

This is what I ended up doing and it works the best.

[Adam Ryczkowski]

Do you know, what is the name of Mod3 in keymaps?