Problem about Intel 945 graphic

[yyg]

After I installed Ubuntu, I could run 3D Opengl screensavers, but after I installed KDE environment, I cannot run them. I tried command glxinfo, and the results are:

~$ glxinfo
name of display: :0.0
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Error: couldn't find RGB GLX visual

visual x bf lv rg d st colorbuffer ax dp st accumbuffer ms cav
id dep cl sp sz l ci b ro r g b a bf th cl r g b a ns b eat
----------------------------------------------------------------------
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
0x21 24 tc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
0x22 24 dc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None

########################

And the content of file xorg.conf are:

Section "Files"
FontPath "/usr/share/X11/fonts/misc"
FontPath "/usr/share/X11/fonts/cyrillic"
FontPath "/usr/share/X11/fonts/100dpi/:unscaled"
FontPath "/usr/share/X11/fonts/75dpi/:unscaled"
FontPath "/usr/share/X11/fonts/Type1"
FontPath "/usr/share/X11/fonts/100dpi"
FontPath "/usr/share/X11/fonts/75dpi"
# path to defoma fonts
FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
Load "i2c"
Load "bitmap"
Load "ddc"
Load "extmod"
Load "freetype"
Load "int10"
Load "type1"
Load "vbe"
load "glx"
load "GLcore"
load "v4l"
EndSection

Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
option "CoreKeyboard"
option "XkbRules" "xorg"
option "XkbModel" "pc104"
option "XkbLayout" "us"
EndSection

Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
option "CorePointer"
option "Device" "/dev/input/mice"
option "Protocol" "ExplorerPS/2"
option "ZAxisMapping" "4 5"
option "Emulate3Buttons" "true"
EndSection

Section "InputDevice"
Driver "wacom"
Identifier "stylus"
option "Device" "/dev/wacom"# Change to
option "Type" "stylus"
option "ForceDevice" "ISDV4"# Tablet PC ONLY
# /dev/input/event
# for USB
EndSection

Section "InputDevice"
Driver "wacom"
Identifier "eraser"
option "Device" "/dev/wacom"# Change to
option "Type" "eraser"
option "ForceDevice" "ISDV4"# Tablet PC ONLY
# /dev/input/event
# for USB
EndSection

Section "InputDevice"
Driver "wacom"
Identifier "cursor"
option "Device" "/dev/wacom"# Change to
option "Type" "cursor"
option "ForceDevice" "ISDV4"# Tablet PC ONLY
# /dev/input/event
# for USB
EndSection

Section "Device"
identifier "Intel Corporation 945G Integrated Graphics Controller"
boardname "i810"
busid "PCI:0:2:0"
driver "i810"
screen 0
EndSection

Section "Monitor"
identifier "B101920"
vendorname "Plug 'n' Play"
modelname "Plug 'n' Play"
modeline "640x480@60" 25.2 640 656 752 800 480 490 492 525 -vsync -hsync
modeline "640x480@72" 31.5 640 664 704 832 480 489 491 520 -vsync -hsync
modeline "640x480@75" 31.5 640 656 720 840 480 481 484 500 -vsync -hsync
modeline "800x600@56" 36.0 800 824 896 1024 600 601 603 625 +hsync +vsync
modeline "800x600@72" 50.0 800 856 976 1040 600 637 643 666 +hsync +vsync
modeline "800x600@75" 49.5 800 816 896 1056 600 601 604 625 +hsync +vsync
modeline "800x600@60" 40.0 800 840 968 1056 600 601 605 628 +hsync +vsync
modeline "832x624@75" 57.284 832 864 928 1152 624 625 628 667 -vsync -hsync
modeline "1024x768@75" 78.8 1024 1040 1136 1312 768 769 772 800 +hsync +vsync
modeline "1024x768@70" 75.0 1024 1048 1184 1328 768 771 777 806 -vsync -hsync
modeline "1024x768@60" 65.0 1024 1048 1184 1344 768 771 777 806 -vsync -hsync
modeline "1152x864@75" 108.0 1152 1216 1344 1600 864 865 868 900 +hsync +vsync
modeline "1280x1024@75" 135.0 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync
modeline "1280x960@60" 102.1 1280 1360 1496 1712 960 961 964 994 -hsync +vsync
modeline "1280x1024@60" 108.0 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
modeline "1280x960@75" 129.86 1280 1368 1504 1728 960 961 964 1002 -hsync +vsync
modeline "1400x1050@60" 122.61 1400 1488 1640 1880 1050 1051 1054 1087 -hsync +vsync
modeline "1400x1050@75" 155.85 1400 1496 1648 1896 1050 1051 1054 1096 -hsync +vsync
modeline "1600x1200@65" 175.5 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
modeline "1600x1200@60" 162.0 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
modeline "1792x1344@60" 204.8 1792 1920 2120 2448 1344 1345 1348 1394 -hsync +vsync
gamma 1.0
EndSection

Section "Screen"
Identifier "Default Screen"
Device "Intel Corporation 945G Integrated Graphics Controller"
Monitor "B101920"
DefaultDepth 24
SubSection "Display"
depth 24
virtual 1792 1344
modes "1280x1024@75" "1280x960@60" "1152x864@75" "1280x1024@60" "1024x768@60" "1280x960@75" "1024x768@70" "1400x1050@60" "1024x768@75" "1400x1050@75" "832x624@75" "1600x1200@65" "800x600@60" "1600x1200@60" "800x600@75" "1792x1344@60" "800x600@72" "800x600@56" "640x480@75" "640x480@72" "640x480@60"
EndSubSection
EndSection

Section "ServerLayout"
Identifier "Default Layout"
screen 0 "Default Screen" 0 0
InputDevice "Generic Keyboard"
InputDevice "Configured Mouse"
#InputDevice "stylus" "SendCoreEvents"
#InputDevice "cursor" "SendCoreEvents"
#InputDevice "eraser" "SendCoreEvents"
EndSection

Section "DRI"
Mode 0666
EndSection
Section "device" #
identifier "device1"
boardname "VESA driver (generic)"
busid "PCI:0:2:1"
driver "vesa"
screen 0
EndSection
Section "screen" #
identifier "screen1"
device "device1"
defaultdepth 24
monitor "monitor1"
EndSection
Section "monitor" #
identifier "monitor1"
gamma 1.0
EndSection
Section "ServerFlags"
EndSection

######################

do you have any idea about this problem?

[nixternal]

Re: Problem about Intel 945 graphic

Here is a i945 workaround located on the Ubuntu Wiki. This may help you out a little bit. Good luck, and if it works, let us know. Take care!!!

[yyg]

Re: Problem about Intel 945 graphic

Thanks, nixternal. I tried i945, ha, nothing happens. I've already reinstalled my OS and returned to Ubuntu.