On Mon, 2010-01-04 at 17:58 +0000, Richard Palmer wrote: 
> 
>       I have two Dell 20" monitors connected to a Mobility Radeon
>       HD 3470 card using DisplayPort to DVI adaptor cables. I can happy
>       use either monitor, but not both together. xrandr lets me
>       switch between them, showing different parts of the virtual desktop
>       (with compiz enabled), but I haven't found any way to get it to
>       show both.

IME compiz doesn't handle dynamic RandR configuration changes well. Try
without compiz or manually updating the compiz output configuration to
match the RandR configuration.


-- 
Earthling Michel Dänzer           |                http://www.vmware.com
Libre software enthusiast         |          Debian, X and DRI developer
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