haskell - xmonad help. Which is my Mod key? -

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i'm using config file https://github.com/artificialbeing/xmonad-conf/blob/master/xmonad.hs

i've recompiled haskell doing xmonad --recompile

then did m-q (where m alt) restart xmonad.

there no errors , i'm pretty sure config set up. however, alt doesn't seem mod key anymore. when press alt+shift+return, don't new terminal screen.

can me figure out key mod?

the relevant bit modmask = mod4mask; on setups, mod 4 "windows" key.


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