Dual Output on Mobility Radeon HD 3470

[Michel Dänzer]

On Tue, 2010-01-05 at 10:07 +0000, Richard Palmer wrote: 
> Dear Michel,
> 
> > 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.
> 
> Sorry, I should have said that this starts at login; both monitors
> work in text mode (showing cloned output) but when gdm starts one
> monitor goes into power saving mode.

Please provide the output of xrandr at that point.


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