Re: [gdm-list] Metacity dual screen problem with gnome and nvidia twinview (tv-out)

[Simon Bowden <simonb cse unsw EDU AU>]

Hi Ulf,

I can't speak for Metacity, but can speak for X/WMs in general (or fluxbox 
specifically).

It is the window manager that creates "workspaces" - they are purely 
virtual, think of them as just several sets of windows that are displayed 
at the same time.

So, it comes down to the window manager for linking them. I think I can 
fairly confidently say that it has nothing to do with gdm...

I can speak for fluxbox, and say that workspaces on different X screens 
are treated separately, and you can have different numbers of workspaces 
on each screen. I would expect other WMs to be the same, because 
you should use Xinerama if you want them treated identically.

The part that puzzles me about your problem is this bit "but only if I 
have mplayer playing video there". What does it do if you don't have 
mplayer playing?

To help determine where a bug/feature lies (e.g. in metacity or mplayer), 
you can try swapping your window manager. If you try fluxbox, you can edit 
the ~/.fluxbox/init file and change "session.screen1.workspaces" to 1.

The only other real variable I can think is whether you are using 
xinerama, but if you're definitely using display ":0.1", then you're not, 
so we can rule it out as a complication.

So... that ramble is the best I can do, because I can't quite put together 
the whole story of interaction between things, and the topic isn't related 
to GDM.

Cheers,

 - Simon

On Wed, 5 Oct 2005 ulf ljungdahl ssabox com wrote:

> Please redirect me if this is the the wrong mailinglist.
> I have eneabled twinview on my nvidia geforce 6800 in order to be able =
> to use screen :0.1 on my TV.
> Everything works fine except the fact that metacity gets the 5 =
> workspaces that I use both on my screen and TV.
> Switching workspace on my monitor in some way switches workspace on the =
> TV too, but only if I have mplayer playing video there.
> So I would like to use 5 workspaces on my monitor (screen :0.0) and just =
> one workspace on the TV (screen 0:1).
> Is that possible to achive? And is it GDM, X11 or gnome that handles =
> that configuration?
> I have googled my eyes red without finding any solution. Any hints would =
> be apriciated.
>
> regards
> Ulf Ljungdahl
>
>
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