I'm trying to get my secondary display (DVI-Out) working on a laptop (built-in monitor & external display) and I'm afraid I made quite the mess of it installing the proprietary driver only to learn that my old ATI card is no longer supported and having to clean that up and reinstall the original distro driver!
Anyways, I reverted back to the open source driver and all is ok. That is until I reboot. If I reboot with the DVI display connected then both displays are brought up in 640x480 res and look terrible.
What do I have to do to be able to leave my DVI display connected when I start up the machine and get it to render the way it does when I plug in the display after the machine is running?
Distro: Linux Mint 10
Adapter: ATI Radeon Mobility X1400
I suspect I need to create an xorg.conf file but these fancy modern Linuxes these days don't come with one (or maybe they no longer need it anymore).
Thanks for any tips!