[CentOS] Widescreen monitor won't configure to a wide screen

I just put a 1680x1050 LCD monitor on my home system, and I went into system-config-display to configure it as such, and it just won't take.

I had to tweak some of the settings by hand, but when I log out, I get the wide screen for both the Nvidia driver splash screen and the login screen.

But, when I log in, It jumps back to 1280x1024 and refuses to run in wide screen mode.

Here's the xorg.conf (even when I'm logged in and the screen is only 1280x1024):

# Xorg configuration created by system-config-display

Section "ServerLayout" Identifier "single head configuration" Screen 0 "Screen0" 0 0 InputDevice "Keyboard0" "CoreKeyboard" EndSection

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

Section "Monitor"

### Comment all HorizSync and VertSync values to use DDC: # HorizSync 31.5 - 65.5 # VertRefresh 56.0 - 65.0 # Option "dpms" Identifier "Monitor0" ModelName "LCD Panel 1680x1050" ### Comment all HorizSync and VertSync values to use DDC: HorizSync 30.0 - 82.0 VertRefresh 56.0 - 76.0 EndSection

Section "Device" Identifier "Videocard0" Driver "nvidia" EndSection

Section "Screen" Identifier "Screen0" Device "Videocard0" Monitor "Monitor0" DefaultDepth 24 Option "NoRenderExtension" "False" Option "AllowGLXWithComposite" "True" Option "RandRRotation" "True" Option "XvmcUsesTextures" "True" Option "AddARGBGLXVisuals" "True" Option "TripleBuffer" "True" Option "DamageEvents" "True" SubSection "Display" # Modes "1680x1050" "1600x1024" "1440x900" "1400x1050" "1280x1024" "1280x960" "1280x800" "1152x864" "1024x768" "800x600" "640x480" Viewport 0 0 Depth 24 Modes "1680x1050" "1600x1200" "1600x1024" "1440x900" "1400x1050" "1280x1024" "1280x960" "1280x800" "1152x864" "1024x768" "800x600" "640x480" EndSubSection EndSection

The commented out Horix and Vert syncs are for my old monitor (a 17" non-ws), and the new ones are from the manual for the new screen. I tried with these commented out, but it still would not work.

One thing I noticed is that when the gdm starts up, it goes from "auto adjust" (wide screen) to "analog-d" (non-ws) - dunno what that means.

Any suggestions? It's really annoying to have a wide screen and not be able to use it....

Thanks.

mhr

What am I missing?