Today somehow my Super key is disabled. I can't use it, neither the laptop keyboard nor external keyboard. When I press the Super key, it does not send the Super key signal to ubuntu (18.04 LTS). Somehow it changed.
I checked the Super key by xev
command. Here is the output:
KeyRelease event, serial 37, synthetic NO, window 0x3400001,
root 0x176, subw 0x0, time 4735544, (559,365), root:(661,519),
state 0x2010, keycode 133 (keysym 0xfe08, ISO_Next_Group), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
I have some key binding with Super key. I use keyboard shortcut for changing writing language, opening dash, changing window/application etc.
Please tell me how to enable the key.
Update:
The problem seems to occur after every shutdown. There might be an application which is overriding the key. Instead of running the command every time, I have figured out another simple way. See the updated answer.