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Old 04-07-2008, 05:50 PM
Paul Michael Reilly
 
Default Dual head in F9 on KDE spin

Mary Ellen Foster wrote:

On 07/04/2008, Paul Michael Reilly <pmr@pajato.com> wrote:

I'd love nothing more than to attest that F9-Beta KDE spin works perfectly
on both my external monitors using the nv driver for an nVidia Quatro
something (my hp nw9440 laptop uses a G71 as near as I can tell), ... but I
cannot. :-(


If I recall correctly (somebody correct me if I'm wrong!), KDE4's
support for randr 1.2 is not complete at the moment. It certainly
doesn't do anything good with clone mode -- you end up with two
overlapping copies of your desktop. I think I did get close to having
it work with side-by-side displays (Intel graphics), but it took some
trial-and-error. I should try again more systematically.


Tell me more about this trial and error effort: were you using the
randr command or a gui tool? Is there any place I can go to see what
the support for randr 1.2 will be when it is complete in a F9 KDE4 spin?
I am striving to understand what the KDE model for F9 will be in order
to set up external monitors, if only to test that it does the intended
job. I'll go back and read the F9 RandR feature description but somehow
I suspect it will not provide that information.


Thanks,

-pmr

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Old 04-08-2008, 07:58 AM
"Mary Ellen Foster"
 
Default Dual head in F9 on KDE spin

On 07/04/2008, Paul Michael Reilly <pmr@pajato.com> wrote:
> Mary Ellen Foster wrote:
> > If I recall correctly (somebody correct me if I'm wrong!), KDE4's
> > support for randr 1.2 is not complete at the moment. It certainly
> > doesn't do anything good with clone mode -- you end up with two
> > overlapping copies of your desktop. I think I did get close to having
> > it work with side-by-side displays (Intel graphics), but it took some
> > trial-and-error. I should try again more systematically.
> >
>
> Tell me more about this trial and error effort: were you using the randr
> command or a gui tool?

I was just doing xrandr on the command line. I was using the onboard
Intel card in my laptop, and I kept having issues with the fact that
my "virtual" screen was too small to include both the internal display
(1280x800) and the large external monitor I was testing with
(1600x1200). I did get things working with the external monitor in
1024x768, but it felt kind of unstable. I didn't try too long, though,
and this was with the beta so things may have changed since then.

> Is there any place I can go to see what the support
> for randr 1.2 will be when it is complete in a F9 KDE4 spin? I am striving
> to understand what the KDE model for F9 will be in order to set up external
> monitors, if only to test that it does the intended job. I'll go back and
> read the F9 RandR feature description but somehow I suspect it will not
> provide that information.

Here's a recent blog post from Aaron Seigo -- who seems to be the main
decision maker for KDE 4 desktop issues -- discussing multiscreen X:
http://aseigo.blogspot.com/2008/03/multiscreen-x.html
And here's a bug discussing some of the symptoms:
http://bugs.kde.org/show_bug.cgi?id=153581

Seems like full non-flakey multi-head support won't be there until KDE 4.1 ...

MEF

--
Mary Ellen Foster -- http://homepages.inf.ed.ac.uk/mef/
Informatik 6: Robotics and Embedded Systems, Technische Universität München
and ICCS, School of Informatics, University of Edinburgh

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Old 04-08-2008, 02:23 PM
Paul Michael Reilly
 
Default Dual head in F9 on KDE spin

Mary Ellen Foster wrote:
...

Thanks so much for the info. You've been a breath of fresh air in what
is mostly a KDE desert. :-(


-pmr

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