[nzlug] Issue with GDM, Twinview, and Ubuntu Gutsy

[Steve Holdoway]

Sorry, that wasn't an answer really, was it (:

With nvidia it's Twinview, not xinerama does the dual head stuff. Here's my screen definition, which treats both (1400x1050) screens as separate - second screen on the left - but you can still drag across screens.

Section "Screen"
    Identifier     "Screen0"
    Device         "Videocard0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "1"
    Option         "metamodes" "CRT: nvidia-auto-select +1400+0, DFP: 1400x1050 +0+0"
    Option         "AddARGBGLXVisuals" "True"
    SubSection     "Display"
        Depth       24
        Modes      "1600x1200" "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
EndSection

On Sat, 6 Oct 2007 15:52:14 +1300
Steve Holdoway <steve at greengecko.co.nz> wrote:

> Well, it's xinerama that's causing the functionality you're seeing. Try it and see (:
> 
> Steve
> 
> On Sat, 6 Oct 2007 14:52:43 +1300
> Robin Sheat <robin at kallisti.net.nz> wrote:
> 
> > On Saturday 06 October 2007 06:55:16 Steve Holdoway wrote:
> > > Section "ServerFlags"
> > >     Option         "Xinerama" "0"
> > > EndSection
> > > to your xorg.conf?
> > Actually, I did the almost-opposite :)
> > 
> > I added Option "Twinview" "1" to xorg.conf, which means that if you start X 
> > with two monitors, the driver starts the xinerama extension and gnome figures 
> > it all out. Previously, I think that gnome wasn't realising that the driver 
> > had turned on xinerama at some point in the future when I was activating the 
> > second monitor, and so didn't behave well. Now things work as well as they 
> > did before, which is to say, well enough.
> > 
> > -- 
> > Robin <robin at kallisti.net.nz> JabberID: <eythian at jabber.kallisti.net.nz>
> > 
> > Hostes alienigeni me abduxerunt. Qui annus est?
> > 
> > PGP Key 0xA99CEB6D = 5957 6D23 8B16 EFAB FEF8  7175 14D3 6485 A99C EB6D
> > 
> 
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