[Wlug] Xinerama issues with Fedora Core 8...

Jamie Guinan guinan at bluebutton.com
Mon Nov 19 17:20:23 EST 2007


Can you downgrade the individual driver(s)?

See this thread from this morning,

  http://lists.freedesktop.org/archives/xorg/2007-November/030311.html

-Jamie


On Mon, 19 Nov 2007, Tim Keller wrote:

> So... if I'm reading this right... I'm stuck then... since I have monitors
> on separate video cards.
> 
> I know it's cool that xrandr can do all this funky stuff, but I'd just be
> happy to keep existing functionality.
> 
> What are my options now... downgrade my X server?
> 
> On Nov 19, 2007 1:34 PM, Chuck Anderson <cra at wpi.edu> wrote:
> 
> > On Mon, Nov 19, 2007 at 01:07:54PM -0500, Tim Keller wrote:
> > > As far as I can tell... Xinerama support is totally borked in Fedora
> > Core
> > > 8.  Has anybody come across any solutions?
> >
> > Xinerama is no longer supported in Xorg.  But not to fear!  It has
> > been replaced by a new, dynamic method of doing dual-head with the
> > XRandR extension.  Unfortunately, neither the Release Notes nor the
> > system-config-display tool have taken these changes into account.
> > Also, this won't work with multiple separate video cards, only single
> > video cards with multiple output on them.  The fact that the X server
> > segfaults when configured with Xinerama is a bug.
> >
> > You can turn on/off and configure multiple displays all dynamically
> > using the xrandr command.  Try this to display the available outputs
> > while the X server is running:
> >
> > xrandr
> >
> > To configure a specific output, try these commands:
> >
> > xrandr --output DVI-1 --auto
> >
> > Or:
> >
> > xrandr --output DVI-1 --mode 1024x768
> >
> > To configure dual-head (NOTE: You have to pre-configure the maximum
> > combined virtual resolution you want to use in xorg.conf first, as
> > specified below):
> >
> > xrandr --output DVI-1 --right-of DVI-0
> >
> > This is nice because it means you can dynamically set up dual-head for
> > an external VGA port on a laptop going to an LCD projector, for
> > example.  The internal LCD and external VGA could run at different
> > resolutions too.
> >
> > For more fun, you can play with rotating screen images.
> >
> > You can also configure this in xorg.conf.  The key differences from
> > traditional multi-head and Xinerama are that you only use a single
> > Screen in your ServerLayout section:
> >
> > Section "ServerLayout"
> >        Identifier     "new dual-head configuration"
> >        Screen      0  "Screen0" 0 0
> >        InputDevice    "Keyboard0" "CoreKeyboard"
> > EndSection
> >
> > Then refer to multiple monitors in the Device section.  Here the
> > format is Option "Monitor-<actual-monitor-id-from-xrandr>"
> > "<monitor-identifier>"
> >
> > Section "Device"
> >        Identifier  "Videocard0"
> >        Driver      "radeon"
> >        Option      "Monitor-DVI-0" "first"
> >        Option      "Monitor-DVI-1" "second"
> > EndSection
> >
> > Then specify the multiple Monitor sections themselves, using the
> > monitor-identifiers specified above, with the placement options
> > RightOf or LeftOf:
> >
> > Section "Monitor"
> >        Identifier  "first"
> > EndSection
> >
> > Section "Monitor"
> >        Identifier  "second"
> >        Option      "RightOf" "first"
> > EndSection
> >
> > And then of course the single screen section.  Note that you MUST
> > specify the Virtual resolution as the sum of the resolutions of the
> > multiple monitors you want to use (either horizontally or vertically,
> > depending on your preferred monitor orientation).  So below I have
> > specified Virtual 3200 1200 so that I can place two 1600x1200 monitors
> > side-by-side.  The Monitor "first" is there just to satisfy the
> > requirement for a Monitor to be specified--you don't put both monitors
> > here.
> >
> > Section "Screen"
> >        Identifier "Screen0"
> >        Device     "Videocard0"
> >        Monitor    "first"
> >        DefaultDepth     24
> >        SubSection "Display"
> >                Viewport   0 0
> >                Virtual 3200 1200
> >                Depth     24
> >                Modes    "1600x1200" "1600x1024" "1440x900" "1400x1050"
> > "1360x768" "1280x1024" "1280x960" "1280x800" "1280x720" "1152x864"
> > "1024x768" "800x600" "640x480"
> >        EndSubSection
> > EndSection
> > _______________________________________________
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> > http://mail.wlug.org/mailman/listinfo/wlug
> >
> 
> 
> 
> -- 
> I am leary of the allegiances of any politician who refers to their
> constituents as "consumers".
> 


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