The blank area remains when the screen saver is activated. However, if
I wait long enough for the power saver to come on (blanking out the
screen altogether), the display is perfectly normal when restored - no
annoying column! Then after an X reset, the column returns.

Card is a GeForce4. The LCD display is a 15" UXGA - X was unable to
probe it. I have the latest nVidia drivers. I'm running an RH beta
7.3.9 (I know, no guarantees). I include the relevant sections of
XF86Config (excluding mouse, keyboard, etc.). Any suggestions on where
to look next very much welcome.

Section "Module"
        Load    "bitmap"
        Load    "dbe"
        Load    "ddc"
        Load    "extmod"
        Load    "freetype"
        Load    "glx"
        Load    "int10"
        Load    "record"
        Load    "speedo"
        Load    "type1"
        Load    "vbe"
EndSection

Section "Device"
        Identifier      "nVidia GeForce4 420 Go"
        Driver          "nvidia"
        BusId           "PCI:1:0:0"
        Option          "IgnoreEDID" "1"
EndSection

Section "Monitor"
        Identifier      "15 UXGA"
        HorizSync       30-107
        VertRefresh     50-85
        Option          "DPMS"
EndSection

Section "Screen"
        Identifier      "nVidia"
        Device          "nVidia GeForce4 420 Go"
        Monitor         "15 UXGA"
        DefaultDepth    24
        SubSection "Display"
                Depth           1
                Modes           "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth           4
                Modes           "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth           8
                Modes           "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth           15
                Modes           "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth           16
                Modes           "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth           24
                Modes           "1024x768" "800x600" "640x480"
        EndSubSection
EndSection

Section "ServerLayout"
        Identifier      "Default Layout"
        Screen          "nVidia"
        InputDevice     "Generic Keyboard"
        InputDevice     "Configured Mouse"
        InputDevice     "Generic Mouse"
EndSection

--
Cheers,
Rich.

I have had success with this problem loading the NVdrimer module with
these options:

modprobe NVdriver NVreg_SoftEDIDs=0 NVreg_Mobile=4

I am using Mandrake 8.2 and the latest drivers donwloaded from
Nvidia's site.

This options are described in the file README.txt that appears linked
in the site.

Write me if you want the XF86config-4 file I am using.

There were problems with the keyboard, I am trying some ideas that are
posted here:

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&threadm=90ca8b70.0...

Sorry for my bad English.

Miguel

That's it! You legend :o) Only I put it in /etc/modules.conf, more
convenient:

options NVdriver NVreg_SoftEDIDs=0 NVreg_Mobile=4

You made my day. So now I just have to figure out how to a) hotsync my
Palm using the IR port, and b) get Quake3 sound working without
{*filter*}.

The keyboard repeat problems for me were eliminated by disabling
XKbd. Which, just incidentally if anyone else is trying, is
accomplished like so:

Section "InputDevice"
        Identifier      "Generic Keyboard"
        Driver          "keyboard"
        Option          "CoreKeyboard"
        Option          "XkbDisable"  "true"
EndSection

--
Cheers,
Rich.

Thank