Dear All,
I recently upgraded some of my machines from Fedora 8 to Fedora 10.
The machines contain Nvidia cards of the GeForce 7, 8 & 9 series and
have at least 2GB of RAM each.
After the upgrade I noted two problems:
When running Matlab I get the message:
"Warning: single buffer is not available, double buffer will be slower"
and another program is crashing on a glXChooseVisual request for
a single buffer window.
glxgears is working fine and glxinfo indicates many 100's of visuals
are available and that I have direct rendering.
My xorg.conf file is as follows:
Section "ServerLayout"
Identifier "single head configuration"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "Files"
ModulePath "/usr/lib/xorg/modules/extensions/nvidia"
ModulePath "/usr/lib/xorg/modules"
EndSection
Section "Module"
Load "glx"
Load "dbe"
Load "extmod"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection
Section "Monitor"
Identifier "Monitor0"
ModelName "Samsung SyncMaster 240T (Digital)"
HorizSync 30.0 - 81.0
VertRefresh 50.0 - 85.0
Option "dpms"
EndSection
Section "Device"
Identifier "Videocard0"
Driver "nvidia"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
This problem seems to also be present in a machine upgraded from Fedora 8 to Fedora 9
All machines are up-to-date with the latest nvidia drivers.
Any ideas?
DS
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