problems running 3-d applications

Ankur Nayak ankur.iit at gmail.com
Thu Jan 26 10:02:11 UTC 2006


I used to have 24 bit color depth earlier and 3D applications were running
fine....So I dont think the problem is there becuase of color
depth....anyways i tried the option but its still not working....

On 1/25/06, Gilboa Davara <gilboad at gmail.com> wrote:
>
> On Wed, 2006-01-25 at 12:13 +0530, Ankur Nayak wrote:
> > Hi,
> > I am having problems running 3-d applications on my system. I have fc3
> > installed on a p4 2.4ghz intel 865 m/b with 32 mb inbuilt graphics
> > memory. Eearlier my 3-d applications were running fine. But, recently
> > I installed nvidia drivers to test my friend's new graphics card and
> > it was working fine. I had made changes to xorg.conf to enable the
> > drivers. Now, I dont have the graphics card anymore and I restored my
> > xorg.conf back. But now graphics is not working for me. On starting
> > "glxgears", I get the following errors...
> > ---
> > Xlib:  extension "GLX" missing on display ":0.0".
> > glxgears: Error: couldn't get an RGB, Double-buffered visual.
> > ---
> >
> > This is my xorg.conf file
> >
> > # Xorg configuration created by system-config-display
> >
> > Section "ServerLayout"
> >         Identifier     "single head configuration"
> >         Screen      0  "Screen0" 0 0
> >         InputDevice    "Mouse0" "CorePointer"
> >         InputDevice    "Keyboard0" "CoreKeyboard"
> > EndSection
> >
> > Section "Files"
> >
> > # RgbPath is the location of the RGB database.  Note, this is the name
> > of the
> > # file minus the extension (like ".txt" or ".db").  There is normally
> > # no need to change the default.
> > # Multiple FontPath entries are allowed (they are concatenated
> > together)
> > # By default, Red Hat 6.0 and later now use a font server independent
> > of
> > # the X server to render fonts.
> >         RgbPath      "/usr/X11R6/lib/X11/rgb"
> >         FontPath     "unix/:7100"
> > EndSection
> >
> > Section "Module"
> >         Load  "dbe"
> >         Load  "extmod"
> >         Load  "fbdevhw"
> >         Load  "glx"
> >         Load  "record"
> >         Load  "freetype"
> >         Load  "type1"
> >         Load  "dri"
> > EndSection
> >
> > Section "InputDevice"
> >
> > # Specify which keyboard LEDs can be user-controlled (eg, with
> > xset(1))
> > #       Option  "Xleds"         "1 2 3"
> > # To disable the XKEYBOARD extension, uncomment XkbDisable.
> > #       Option  "XkbDisable"
> > # To customise the XKB settings to suit your keyboard, modify the
> > # lines below (which are the defaults).  For example, for a non-U.S.
> > # keyboard, you will probably want to use:
> > #       Option  "XkbModel"      "pc102"
> > # If you have a US Microsoft Natural keyboard, you can use:
> > #       Option  "XkbModel"      "microsoft"
> > #
> > # Then to change the language, change the Layout setting.
> > # For example, a german layout can be obtained with:
> > #       Option  "XkbLayout"     "de"
> > # or:
> > #       Option  "XkbLayout"     "de"
> > #       Option  "XkbVariant"    "nodeadkeys"
> > #
> > # If you'd like to switch the positions of your capslock and
> > # control keys, use:
> > #       Option  "XkbOptions"    "ctrl:swapcaps"
> > # Or if you just want both to be control, use:
> > #       Option  "XkbOptions"    "ctrl:nocaps"
> > #
> >         Identifier  "Keyboard0"
> >         Driver      "kbd"
> >         Option      "XkbModel" "pc105"
> >         Option      "XkbLayout" "us"
> >         Option      "XkbOptions" "ctrl:swapcaps"
> > EndSection
> >
> > Section "InputDevice"
> >         Identifier  "Mouse0"
> >         Driver      "mouse"
> >         Option      "Protocol" "IMPS/2"
> >         Option      "Device" "/dev/input/mice"
> >         Option      "ZAxisMapping" "4 5"
> >         Option      "Emulate3Buttons" "yes"
> > EndSection
> >
> > Section "Monitor"
> >
> >         #DisplaySize  310       230
> >         Identifier   "Monitor0"
> >         VendorName   "Monitor Vendor"
> >         ModelName    "SyncMaster"
> >         DisplaySize  330        250
> >         HorizSync    30.0 - 71.0
> >         VertRefresh  50.0 - 160.0
> >         Option      "dpms"
> > EndSection
> >
> > Section "Device"
> >         Identifier  "Videocard0"
> >         Driver      "i810"
> >         VendorName  "Videocard vendor"
> >         BoardName   "Intel 865"
> > EndSection
> >
> > Section "Screen"
> >         Identifier "Screen0"
> >         Device     "Videocard0"
> >         Monitor    "Monitor0"
> >         DefaultDepth     24
> >         SubSection "Display"
> >                 Viewport   0 0
> >                 Depth     16
> >                 Modes    "800x600" "640x480"
> >         EndSubSection
> >         SubSection "Display"
> >                 Viewport   0 0
> >                 Depth     24
> >                 Modes    "1280x1024" "1280x960" "1152x864" "1024x768"
> > "800x600" "640x480"
> >         EndSubSection
> > EndSection
> >
> > Section "DRI"
> >         Group        0
> >         Mode         0666
> > EndSection
> > ----------
> >
> >
> > Any help will be appreciated
> >
> > Thanks,
> > Ankur
> > --
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> > fedora-list at redhat.com
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>
> Try removing the 24bit settings.
> "Depth     24
> Modes    "1280x1024" "1280x960" "1152x864" "1024x768" "800x600"
> "640x480""
>
> At least in my case, 3D DRI is only enabled if color depth <= 16bit.
>
> Gilboa
>
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> fedora-list at redhat.com
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>
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