Does not work for me :crying: I voluntary added trailing space to my file. Nothing appears in red. I obtain in white and black
     testcooperativelevels_normal();ESC[m
ESC[32m+ESC[mESC[32m    testcooperativelevels_normal_other_ddraw();ESC[m
ESC[32m+ESC[mESC[41m    ESC[m
ESC[32m+ESC[mESC[41m    ESC[m
ESC[32m+ESC[mESC[41m    ESC[m
ESC[32m+ESC[mESC[41m    ESC[m
ESC[32m+ESC[mESC[41m    ESC[m
ESC[32m+ESC[mESC[41m    ESC[m
ESC[32m+ESC[mESC[41m    ESC[m
ESC[32m+ESC[mESC[41m    ESC[m
ESC[32m+ESC[mESC[41m    ESC[m
     releasedirectdraw();ESC[m

I use kconsole. Maybe it is the problem ??

Thanks for the advices

A+

David

2010/8/30 Octavian Voicu <octavian.voicu@gmail.com>
Try running:

git config --global color.ui auto

This will activate colorful output for all git commands (in particular
for `git diff' too).

Then, when you run `git diff' from a terminal you will see whitespace
errors (eg. trailing whitespace) highlighted with a red background.

Hope it helps,
Octavian