How to reset xcalib contrast to default without seeing screen?

Question

I installed xcalib to adjust my screen contrast, and I executed this :

xcalib -co 0 -a

Which set my screen contrast to 0 , and now my screen turned dark, and I don't have any clue as to how can I reset this setting ?

Thank you

score 9 · Answer 1 · edited May 10 '17 at 20:10

9

To reset to default use

xcalib -c

Even if its an old post...

edited May 10 '17 at 20:10

Elder Geek

36,752

answered May 10 '17 at 19:05

Hauke

91

score 3 · Accepted Answer · answered Apr 26 '16 at 22:46

As first enter a TTY, this you achieve by pressing ctrl+alt+f1. There you can login whit providing your username and password. Then set the contrast back with the same command you have used to set it to zero.

xcalib -co 50 -a

Now you can logout of your TTY session by entering exit. Afterwards you can come back to your GUI by pressing ctrl+alt+f7.

How to reset xcalib contrast to default without seeing screen?

2 Answers2