Lat C610, C/Dock II and external monitor on RH8
I'm trying to install Redhat8 on my Dell Latitude C610 connected to a
Dell C/Dock II docking station. Everything works fine but the
connected external monitor. Under X I only get the max resolution of
my LCD at 60Hz. I'm able to increase screen resolution in the X
settings but after reboot nothing has changed.
LCD is on but display of my notebook is closed.
My graphic device is an ATI Radeon Mobility M6.
What can I do to switch off the LCD and set screen resolution and
refresh rate to my needs?