Radeon and dri dual head
Loren A. Linden Levy
lindenle at uiuc.edu
Mon Jun 13 21:08:30 PDT 2005
On Mon, 13 Jun 2005 17:21:29 -0400
Alex Deucher <alexdeucher at gmail.com> wrote:
AD> >
AD> > 1. If I run glxgears(or any other openGL code) on either of the
AD> > two monitors it changes back from Xinerama to cloned mode.
AD>
AD> that was a bug with pageflipping in 6.8.x you can either try
AD> xorg/mesa/drm from cvs, or turn off pageflipping:
AD> Option "EnablePageFlip" "False"
AD>
AD> If you want to try cvs you can either build from source or grab teh
AD> nightly binary snapshots here:
AD> http://dri.freedesktop.org/wiki/Download#head-55420c59a1c2e9a70f07a6fa02f0d228ffb87b76
Do you mean that i need to grab some of the Xorg code from cvs and add
it to 6.8.2 or that i should check out the entire tree from cvs?
AD> you can also leave those lines and add metamodes that include a
AD> clone mode, then you can switch between dualhead and single head
AD> with xrandr.
Thanks so much I specified the meta modes and now I can change between
dual head and single head.
For reference I have:
Section "Device"
Identifier "ATI RADEON 0"
Driver "ati"
# Driver "radeon
VendorName "ATI"
BoardName "Radeon Mobility U2"
VideoRam 65536
BusID "PCI:1:5:0"
Option "AGPMode" "4"
Option "DPMS"
Option "AGPFastWrite" "On"
Option "EnablePageFlip" "On"
Option "MonitorLayout" "LVDS, CRT"
Option "CRT2Position" "RightOf"
Option "CRT2HSync" "30-94"
Option "CRT2VRefresh" "50-75"
Option "MergedFB" "true"
Option "MetaModes" "1024x768-1024x768 1024x768-1200x1024
1024x768" Screen 0
EndSection
--
---------------------------------------------
Loren A. Linden Levy
481 Loomis, Department of Physics
University of Illinois at Urbana-Champaign
1110 W. Green St., Urbana, IL 61801-3080
Tel: 217-244-7995 Fax: 217-333-1215
Email: lindenle at uiuc.edu
url: http://w3.physics.uiuc.edu/~lindenle/
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