[ltp] Re: Changing dimensions of a Screen in XOrg at runtime

Alex Deucher linux-thinkpad@linux-thinkpad.org
Thu, 5 May 2005 08:53:41 -0400


On 5/5/05, Reinhard Tartler <siretart@gmail.com> wrote:
> On 5/5/05, Reinhard Tartler <siretart@gmail.com> wrote:
> > On 5/5/05, ZIYAD A. M. AL-BATLY <zamb@saudi.net.sa> wrote:
> > > On Thu, 2005-05-05 at 10:08 +0200, Reinhard Tartler wrote:
> > > Maybe I didn't understand what you're saying (and I'm sure there are
> > > much more experience people in the list whom are better than me and w=
ill
> > > answer your needs) but here goes nothing: Set your '/etc/X11/xorg.con=
f'
> > > at the largest resolution that you need (or even larger) and make sur=
e
> > > that RANDR (not a spelling error) Extension is enabled (it's enabled =
by
> > > default unless otherwise disabled in the xorg.config file, but to mak=
e
> > > sure it's enabled run "xdpyinfo | grep RANDR" from within X) and use
> > > "System" --> "Preference" --> "Screen Resolution" (or use the command
> > > "xrandr" from a terminal under X) to switch between resolutions whene=
ver
> > > needed/desired.
> > Thank you for your explanation. I did try this out, and in fact, it
> > works when not using xinerama.  Googling further brought me this bug:
> >
> > https://bugs.freedesktop.org/show_bug.cgi?id=3D1423
> >
> > However using MergedFB gave me better results.  Thank you both, Trent
> > and Ziyad for pointing me to xrandr
>=20
> The mergedfb solution suits me much better, but I'd rather want to be
> able to have my non rectangular Virtual Desktop from Xinerama back.
> (in my case, a 1024x768 + 1280x1024 virtual desktop without scrolling
> the smaller one).
>=20
> This is reported here: https://bugs.freedesktop.org/show_bug.cgi?id=3D195=
6
>=20
> My hardware is a ati radeon 7500 mobile, using xorg radeon driver.
> Thomas Winischofer writes at
> http://www.winischhofer.at/linuxsispart3.shtml, that he implemented
> this in the sis version of MergedFB, so I wonder if it is included
> also in the radeon version. Did anyone manage to setup this?
>=20

I'm planning to port the changes over, I just haven't had time.

Alex

> --
> regards,
>     Reinhard