[Solved] GDM resolution (again ...)

Question

How do I configure GDM? It is stuck in some low resolution. (Once I've logged in, everything is fine.)
I know there are a lot of solutions out there, but most of them are obsolete or do not work(?). The key seems to be to modify xorg.conf - but this file is basically empty and I do not want to clutter it. It is empty for a reason, is it not?
I use the open source ATI drivers and have an external monitor (sometimes) attached to my mobile computer. (I provide further information - I don't know what's necessary yet to fix this.)
Thanks.
Last edited by yatohese (2011-06-02 11:20:45)

Answer 1

Okay, I found following solution:
In /etc/gdm/Init/Default after:
PATH="/usr/bin:$PATH"
OLD_IFS=$IFS
add
xrandr --output LVDS --auto --pos 0x0 --primary
EXTERNAL_MONITOR=`xrandr | grep "DVI-0 connected"`
if [ "x${EXTERNAL_MONITOR}x" != "xx" ]; then
xrandr --output DVI-0 --auto --right-of LVDS
fi
xdotool mousemove 700 450
You need to adapt the identifiers of your output.
xdotool mousemove 700 450
is a workaround to the problem that the login dialog is displayed on the screen where the the mouse is (in my case it was on the secondary monitor; the point (700, 450) is in my case in the center of my primary monitor).
Last edited by yatohese (2011-06-02 11:27:48)