Dual Output on Mobility Radeon HD 3470
michel at daenzer.net
Tue Jan 5 02:10:28 PST 2010
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
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