What do I put in for -display argument of xmodmap command
 

I'm trying to load a custom keymap using the xmodmap command. It's on a hacked ZipIt 2 and a custom keymap is necessary for the alt key (punctuation and numbers) combos to work in x.

I try [ xmodmap /etc/keymap.map ] and I get back
xmodmap: unable to open display ' '

I need to put a string in for -display, i.e.
xmodmap -display somestring /etc/keymap.map

I need someone to tell me how to find what value to put in.

I'm looking a xorg.conf and I see

Section "Screen"
Identifier "Screen0"
Device "Card0"
SubSection "Display"
Modes "240x320"
EndSubSection
EndSection

I tried Screen0 and Screen and "Screen0" (should I have quotes around the argument?) I still get "unable to open display".

Does anyone have experience with xmodmap?

go to your X session, open a terminal, and type "echo $DISPLAY" and there's your answer.

IIRC something like ":0" will suffice.

echo $DISPLAY returns a blank line

The default (first screen) is definitely :0.0

And the second screen would be :1.0

Now, when multiple (monitors??) is involved, *something* is referred to as :0.1 or :1.1 where the second digit refers to the second monitor on screen x. Don't quote me on this part; what I wrote first should suffice (:0.0)

If you enter a login terminal, and/or source /etc/profile then $DISPLAY should get set somewhere.

Sasha