I try to enable desktop-effects , it showed like below:
$ desktop-effects
compiz (core) - Fatal: No valid GL extensions string found.
compiz (core) - Error: Failed to manage screen: 0
compiz (core) - Fatal: No manageable screens found on display :0.0

how can i do to fix this and use desktop-effects?_!

compiz (core) - Fatal: No valid GL extensions string found.
... enable hardware DRI for your video card.

sorry .. can u tell in more detail .
I am new to Fedora. and I dont know how to set the DRI

easiest way, go to yast... "online Update"
update everything for a complete XML files
or before u do tat, uninstall ur 3D card driver 1st
then go to the repositories to redo the installation for the driver.

i am facing kinda same problem with u
it says my 3d card cannot run the 3d acceleration.
most probably due to hardware problem i think.
any body can enlighten me something?

i am using P4 2.4G 32-bit processor.
PX400 Phenix motherboard.
, obsolete Ati Radeon 9200 graphic card.
512mb kingston ddr ram

pango853 what's ur spec for ur pc? that would help.

Have a look at these threads at Fedora Forum.
http://forums.fedoraforum.org/forum/...ghlight=compiz
http://forums.fedoraforum.org/forum/...ghlight=compiz

Today I try install again.
And I succeeded to install my car driver.
=============================================
[root@localhost ~]# fglrxinfo
display: :0.0 screen: 0
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: Radeon X1950 Series
OpenGL version string: 2.1.7170 Release
=============================================
but the problem is sill here, when I run,
=============================================
[root@localhost ~]# desktop-effects
compiz (core) - Fatal: No valid GL extensions string found.
compiz (core) - Error: Failed to manage screen: 0
compiz (core) - Fatal: No manageable screens found on display :0.0
=============================================
Plesase, is there anyone know what is happeing?!

and here is my gedit /etc/X11/xorg.conf :
=============================================
# Xorg configuration created by system-config-display

Section "ServerLayout"
Identifier "single head configuration"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
ModulePath "/usr/lib/xorg/modules"
EndSection

Section "ServerFlags"
Option "AIGLX" "on"
EndSection

Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbModel" "jp106"
Option "XkbLayout" "jp"
EndSection

Section "Monitor"
Identifier "Monitor0"
ModelName "Mitsubishi RDS173X"
HorizSync 30.0 - 70.0
VertRefresh 50.0 - 120.0
Option "dpms"
EndSection

Section "Device"
Identifier "Videocard0"
Driver "fglrx"
Option "OpenGLOverlay" "off"
Option "VideoOverlay" "on"
Option "UseFastTLS" "0"
Option "BlockSignalsOnLock" "on"
Option "ForceGenericCPU" "off"
Option "KernelModuleParm" "locked-userpages=0"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection

Section "Extensions"
Option "Composite" "Enable"
EndSection

Section "DRI"
Mode 0666
EndSection

And here is my card detail :
my card : Ati x1950 Pro
kernel : 2.6.23.9-85
driver : ati-driver-installer-8.443.1-x86.x86_64.run

Please help me. Thank you very much.

Did you read my post with the links? Install Compiz.

To Glennzo :
Yes, I did, but notthing change . I still can start the desktop-effects.

Never mind Desktop Effects. Use ALT-F2 and type fusion-icon. See what that gets you and go from there.

i type fusion-icon : it show like
* Detected Session: unknown
* Searching for installed applications...
* No GLX_EXT_texture_from_pixmap with direct rendering context
... nor with indirect rendering, this isn't going to work!
....
..

What is the problem ?

And I used the way the install my x1950 card.
http://forums.fedoraforum.org/showth...3&page=1&pp=10
then follow http://forums.fedoraforum.org/forum/...ghlight=compiz
to install the compiz and so on.
But, in fact, I just wanna try the Desktop-Effects in Fedora. Is that so difficult?
I can use it when I use Ubuntu before. The same hardware. But I just like Fedora more. Can anyone help me.

* thx Glennzo, you did help a lot.