Not getting higher resolutions with MSI N8400 video card

[Razmear]

Hi,
Kinda stumped here.
My MSI N8400GS video card states it will do 2560 x 1600 res, but in my Nvidia Settings it only allows a max res of 1360 x 768.

I just got 2 used 21inch CRTs.
On my wife's PC, running 10.4, same NVidia drivers, and a old AGP video card she can set any resolution, and the Display Configuration screen identifies the monitor by name (ViewSonic P810).
On my pc, also 10.4, Nvidia Drivers 195.36.24 (same as wifes) I can't see the higher resolution options and the monitor is identified only as CRT-1.

I'm suspecting the inability to ID the monitor might be part of the issue.
Any ideas?
eb

edit: link to the video card:
http://www.newegg.com/Product/Produc...82E16814127368

edit: more info
xorg.conf

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 1.0  (buildd@palmer)  Fri Apr  9 10:35:18 UTC 2010


Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "0"
EndSection

Section "Module"
    Load           "glx"
EndSection

Section "InputDevice"
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    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      "CRT-1"
    HorizSync       28.0 - 55.0
    VertRefresh     43.0 - 72.0
    Option         "DPMS"
	# HorizSync source: builtin, VertRefresh source: builtin
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 8400 GS"
    Option         "NoLogo" "True"
EndSection

Section "Screen"

	# Removed Option "metamodes" "CRT: nvidia-auto-select +0+0, TV: nvidia-auto-select +1024+0"
# Removed Option "metamodes" "CRT: 1152x864 +0+0, TV: nvidia-auto-select +1152+0"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "1"
    Option         "metamodes" "CRT: 1152x864 +0+0, TV: 800x600 +1152+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Also tested with 173 version of driver with no change.

[Razmear]

Got it fixed.
Had to manually edit xorg.conf to set the correct freqs:

Section "Monitor"

# HorizSync source: xconfig, VertRefresh source: xconfig
Identifier "Monitor0"
VendorName "Unknown"
ModelName "CRT-1"
HorizSync 30.0 - 95.0
VertRefresh 50.0 - 160.0
Option "DPMS"
EndSection

reboot and now all modes are available.

eb

[rlgoddard]

Got it fixed.
Had to manually edit xorg.conf to set the correct freqs:

Section "Monitor"

# HorizSync source: xconfig, VertRefresh source: xconfig
Identifier "Monitor0"
VendorName "Unknown"
ModelName "CRT-1"
HorizSync 30.0 - 95.0
VertRefresh 50.0 - 160.0
Option "DPMS"
EndSection

reboot and now all modes are available.

eb

I have a GeForce 7600 GT video card, and doing as you suggested worked beautifully as well! Thanks for the tip!