Hello Oliver,
would you please also state which graphics card you are using?
- Nathan
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On Tue, Aug 19, 2014 at 09:55:12PM -0400, Oliver Ruebenacker wrote:
    Hello,
 I installed the nvidia driver via yum from RPMFusion and lsmod
confirms that nvidia is loaded and nouveau is not.
 But when I run the NVIDIA X Server Settings (KDE on F20), it claims
I do not appear to be running the NVIDIA driver and should configure it
by running nvidia-xconfig as root and restarting the X server.
 nvidia-xconfig creates an new /etc/X11/xorg.conf file (see below).
Previously, no /etc/X11/xorg.conf file existed.
 Then, when I try to re-start X, it will not start saying no screens
found, until I remove the xorg.conf file and then everything is back to
normal, including NVIDIA X Server Settings saying that I do not appear
to be running the NVIDIA driver.
 Did some googling and followed some advice to set the BusID in
xorg.conf, but did not help.
 Any ideas? Thanks!
    Best,
    Oliver
--
Oliver Ruebenacker
Founder at [1]Relomics Consulting
Be always grateful, but never satisfied.
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:Â version 331.89Â
(buildmeister@swio-display-x64-rhel04-18) Tue Jul 1 12:08:19 PDT
2014
Section "ServerLayout"
   Identifier    "Layout0"
   Screen     0 "Screen0"
   InputDevice   "Keyboard0" "CoreKeyboard"
   InputDevice   "Mouse0" "CorePointer"
EndSection
Section "Files"
   FontPath       "/usr/share/fonts/default/Type1"
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"
   # generated from default
   Identifier    "Keyboard0"
   Driver        "kbd"
EndSection
Section "Monitor"
   Identifier    "Monitor0"
   VendorName    "Unknown"
   ModelName     "Unknown"
   HorizSync      28.0 - 33.0
   VertRefresh    43.0 - 72.0
   Option        "DPMS"
EndSection
Section "Device"
   Identifier    "Device0"
   Driver        "nvidia"
   VendorName    "NVIDIA Corporation"
EndSection
Section "Screen"
   Identifier    "Screen0"
   Device        "Device0"
   Monitor       "Monitor0"
   DefaultDepth   24
   SubSection    "Display"
       Depth      24
   EndSubSection
EndSection
References
1.
http://www.relomics.com/