[SOLVED] Re: xorg virtual / panning question

Craig White craigwhite at azapple.com
Fri Apr 10 22:40:44 UTC 2009


On Fri, 2009-04-10 at 19:01 +0100, Sharpe, Sam J wrote:
> 2009/4/10 Craig White <craigwhite at azapple.com>:
> > On Fri, 2009-04-10 at 16:43 +0100, Sharpe, Sam J wrote:
> >> 2009/4/10 Sharpe, Sam J <sam.sharpe+lists.redhat at gmail.com>:
> >> > 2009/4/10 Craig White <craigwhite at azapple.com>:
> >> >> I am getting no traction on xorg mail list - perhaps I cannot ask in a
> >> >> way that makes them answer but the idea is...
> >> >>
> >> >> Fedora 11 Beta (xrandr 1.3 - yeah!)
> >> >>
> >> >> If I manually execute the command...
> >> >> xrandr --output LVDS1 --mode 1024x600 --panning 1280x1024
> >> >>
> >> >> I sort of get what I want...well, the background is tiled but my tiny
> >> >> 1024x600 screen becomes usable with panning and I can't understand why I
> >> >> can't achieve this simply with xorg.conf.
> >> >>
> >> >> Can anyone see what changes I need to make?
> >> > <snip>
> >> >
> >> > I know very little about this but I was keeping an eye on it for my eeePC 701.
> >> >
> >> > The changelog for Xorg 1.5.99 says:
> >> >
> >> > Matthias Hopf (5):
> >> >      randr: Add monitor option "Panning" for initial panning configuration
> >> >
> >> > So that says to me that somewhere in your Xorg.conf Monitor section
> >> > you should have a Panning keyword - which you don't have.
> >> >
> >> > Looks like you'll have to dig around in Google though as I haven't
> >> > seen any easy source of information about it,
> >>
> >> Or you could look at the code:
> >> http://cgit.freedesktop.org/xorg/xserver/commit/?h=panning-for-server-1.6&id=44b89dc0a5aa23df69539754fb76c67c310530db
> >>
> >> Looks to me like:
> >>
> >> Section "Monitor"
> >> <snip>
> >>      Panning       1280x1024
> >> EndSection
> >>
> >> might do it...
> > ----
> > death - death I say...
> >
> > Parse error on line 44 of section Monitor in file /etc/X11/xorg.conf
> >        "Panning" is not a valid keyword in this section.
> 
> Have you tried:
> 
> Option "Panning" "1280x1024"
> 
> If you download the src.rpm for Xorg in F11b, Panning is definitely in
> hw/xfree86/modes/xf86Crtc.c ... so it /should/ work...
----
Victory!

I now have virtual scrolling/panning on my 1024x600 screen to 1280x1024
whether or not an external display is connected to the VGA port.

thanks Sam - you inspired me to keep trying.

Turned out that it finally did work but what made it work was adding
back the second Monitor and Screen sections so I could have both my LVDS
and VGA screens and I gather that the larger size of the VGA is what
made it all work.

I have put this info on the Acer Aspire One page on Fedora Wiki for
anyone who is interested and it should provide a really good guide for
Sam's Asus eepro (obviously adjust for the built-in video and external
VGA display).

Link here...
https://fedoraproject.org/wiki/Acer_Aspire_One#xorg.conf

Oh - this is with Fedora-11-Beta (and current updates) because I believe
the xserver 1.6 and xrandr 1.3 versions are needed to make it work.

Craig


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