Hello,
I have a Sony VGN laptop with an ATI video card - a Radeon HD:
01:00.0 VGA compatible controller: ATI Technologies Inc M96 [Mobility Radeon HD 4650]
I am able to configure the laptop's own screen just fine with sax2:
SaX2 -r -m 0=fglrx -V 0:1600x900@85
However I really need to be able to extend my desktop onto an external monitor with some kind of dual-head config - Xinerama, One Big Desktop or something.
I have been trying for two days to get this setup. I've tried sax2, aticonfig, and hacking the conf by hand from advise I've found on the web.
Nothing has worked yet - I did manage to get a "two screen" setup but KDE acted like it was two seperate X server - two desktops, two KPanels, I couldn't move applications from one window to the next.
Usig aticonfig I got what seems to be a sort of clone mode with the wrong resolution on the laptop screen.
Everything else I've tried either causes the laptop to lok up entirely, or crashed X with a backtrace.
I've decided I just don't know the proper way to try this, does anybody have some advise?
I do have the commercial ATI drivers installed (fglrx).
Thanks,
JW