[CentOS] X/Display resolution configuration

Mon Oct 8 22:15:53 UTC 2012
Frank Cox <theatre at melvilletheatre.com>

On Mon, 08 Oct 2012 16:51:17 -0500
Mike Watson wrote:

> Login as normal via the linux login screen.  The display is 1280x1024. I 
> use the system config to change the display to 1600x900.  All works 
> until I logout. The next time I log in, the display has reverted to 
> 1280X1024. It's as if, when I change the display to the higher value, 
> it's not being retained---only for the duration of that session.

> >> Screen 0: minimum 320 x 200, current 1600 x 900, maximum 8192 x 8192
> >> VGA1 connected 1600x900+0+0 (normal left inverted right x axis y axis)
> >> 440mm x 250mm
> >>      1600x900       60.0*+

Does this command work?

xrandr --output VGA-1 --mode 1600x900x32

If so, you could add it to /etc/gdm/Init/Default.  I think it will work if you
add it just before the first gdmwhich() line, but you might have to do some
experimenting.

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