Nat, is probably right. I did not see a "Module" section in your xorg.conf 
file, which is required. 

Attached are 2 examples of xorg.conf. One for single screen CRT, the other for 
a dual head FX Quadro card, which uses 2 monitors. Use them as templates to 
adapt to your configuration.

HTH

        Carsten

-----Original Message-----
From: Mailing list for users of COOT Crystallographic Software [mailto:[EMAIL 
PROTECTED] Behalf Of Nathaniel Echols
Sent: Monday, October 20, 2008 4:42 PM
To: [email protected]
Subject: Re: [COOT] Fedora 8 binary core dumps - please help


This may not be required any more, but I remember having to explicitly add the 
GLX module to the list of extensions to get NVidia cards to work.  I'm not sure 
exactly what the syntax is, but I know the module is just called "glx", so 
maybe try putting 'Options "glx" "Enabled"' in the 'Extensions' section.


On Mon, Oct 20, 2008 at 1:38 PM, Scott Classen <[EMAIL PROTECTED]> wrote:

SO I added the "Extensions" stanza to my xorg.conf file as you suggested but I 
still get a non-functional COOT.

FYI here is my xorg.conf file:


# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 1.0  ([EMAIL PROTECTED])  Thu Feb 14 18:21:33 PST 
2008

# 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 "ServerFlags"
   Option         "Xinerama" "0"
EndSection


Section "Extensions"
       Option      "Composite" "Disabled"
EndSection


Section "InputDevice"

   # generated from default
   Identifier     "Mouse0"
   Driver         "mouse"
   Option         "Protocol" "auto"
   Option         "Device" "/dev/input/mice"
   Option         "Emulate3Buttons" "no"
   Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
   Identifier     "Keyboard0"
   Driver         "kbd"
   Option         "XkbModel" "pc105"
   Option         "XkbLayout" "us+inet"
EndSection

Section "Monitor"
   Identifier     "Monitor0"
   VendorName     "Unknown"
   ModelName      "CRT-0"
   HorizSync       30.0 - 110.0
   VertRefresh     50.0 - 150.0
   Option         "DPMS"
EndSection

Section "Device"
   Identifier     "Videocard0"
   Driver         "nvidia"
   VendorName     "NVIDIA Corporation"
   BoardName      "GeForce FX 5200"
EndSection

Section "Screen"
   Identifier     "Screen0"
   Device         "Videocard0"
   Monitor        "Monitor0"
   DefaultDepth    24
   Option         "TwinView" "0"
   Option         "TwinViewXineramaInfoOrder" "CRT-0"
   Option         "metamodes" "1600x1200_60 +0+0"
   SubSection     "Display"
       Depth       24
   EndSubSection
EndSection


The main COOT window pane displays with all the menu items but the contents of 
the window (i.e. the really important stuff) just shows a ghost of my desktop.

These are the errors that are output from the terminal:


(coot-real:5388): GtkGLExt-WARNING **: cannot create GdkGLContext


(coot-real:5388): GdkGLExt-CRITICAL **: 
gdk_gl_window_impl_x11_make_context_current: assertion 
`GDK_IS_GL_CONTEXT_IMPL_X11 (glcontext)' failed

(coot-real:5388): GtkGLExt-WARNING **: cannot create GdkGLContext


(coot-real:5388): GdkGLExt-CRITICAL **: 
gdk_gl_window_impl_x11_make_context_current: assertion 
`GDK_IS_GL_CONTEXT_IMPL_X11 (glcontext)' failed

(coot-real:5388): GtkGLExt-WARNING **: cannot create GdkGLContext


(coot-real:5388): GdkGLExt-CRITICAL **: 
gdk_gl_window_impl_x11_make_context_current: assertion 
`GDK_IS_GL_CONTEXT_IMPL_X11 (glcontext)' failed

(coot-real:5388): GtkGLExt-WARNING **: cannot create GdkGLContext



----- Original Message -----
From: Tim Fenn <[EMAIL PROTECTED]>
Date: Friday, October 17, 2008 5:38 pm
Subject: Re: Fedora 8 binary core dumps - please help
To: [email protected]


> On Fri, 17 Oct 2008 16:55:17 -0700 Scott Classen <[EMAIL PROTECTED]>
> wrote:
>
> > Hello,
> >
> > Desktop effects are NOT turned on.
> > ccp4i 6.0.2 works fine.
> >
> > I just tried the latest nightly and that didn't work either
> >
> > coot-0.5.1-pre-1-revision-1502-binary-Linux-i386-fedora-8-python-
> gtk2.tar.gz>
> > I have a hunch this has something to do with my graphics card. I
> have> an NVIDIA card (GeForce FX 5200) I've installed the nvidia linux
> > drivers NVIDIA Driver Version 169.12
> >
>
> Most likely its a xorg thing - can you post your xorg.conf?  Did you
> check the xorg log for errors?  Did you use the nvidia installer
> script, or a pre-built binary for your distribution? I do recall there
> being problems with nvidia's driver and the composite extension that
> would cause this sort of thing (since GLX gets disabled if there is a
> conflict), you may want to check that the following is in your
> xorg.conf:
>
> Section "Extensions"
>        Option      "Composite" "Disabled"
> EndSection
>
> -Tim
>
> --
> ---------------------------------------------------------
>
>        Tim Fenn
>        [EMAIL PROTECTED]
>        Stanford University, School of Medicine
>        James H. Clark Center
>        318 Campus Drive, Room E300
>        Stanford, CA  94305-5432
>        Phone:  (650) 736-1714
>        FAX:  (650) 736-1961
>
> ---------------------------------------------------------
>

Attachment: xorg.conf_singlescreen
Description: xorg.conf_singlescreen

Attachment: xorg.conf_dualscreen
Description: xorg.conf_dualscreen

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