Hi, I'm new on Debian. I'm using Debian GNU/Linux 04.r3 amd64 (kernel 2.6.18-6-amd64). I have a GeForce 6100 on board and a LG L1920P Monitor (LCD).

I've installed the nvidia driver (NVIDIA-Linux-x86_64-173.14.12-kg2.run) downloaded from www.nvidia.com and I've used nvidia-xconfig to config the /etc/X11/xorg.conf file.

My problem is with the 1280x1024 resolution.

When I use the generic drive (nv) with this resolution it runs well. But when I use the nvidia driver (nvidia) I can't use it. The screen is black with a blue line on the top. I move the mouse to the top and I can see a part of it. I press Ctrl + Alt + + or - to change the resolution and I found the problem is the resolution because with 1024x768, 800x600 ... it runs correctly.

I try with resolutions such as 1280x960, 1024x768... and I can see it fails when I use ...x1024 resolution.

Can someone help me?

Here is my xorg.conf file:

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 1.0 (buildmeister@builder58) Thu Jul 17 18:39:00 PDT 2008

# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
# (Type "man /etc/X11/xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
# sudo dpkg-reconfigure -phigh xserver-xorg

Section "ServerLayout"
Identifier "Default Layout"
Screen "Default Screen" 0 0
InputDevice "Generic Keyboard"
InputDevice "Configured Mouse"
EndSection

Section "Files"

# path to defoma fonts
FontPath "/usr/share/fonts/X11/misc"
FontPath "/usr/X11R6/lib/X11/fonts/misc"
FontPath "/usr/share/fonts/X11/cyrillic"
FontPath "/usr/X11R6/lib/X11/fonts/cyrillic"
FontPath "/usr/share/fonts/X11/100dpi/:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
FontPath "/usr/share/fonts/X11/75dpi/:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
FontPath "/usr/share/fonts/X11/Type1"
FontPath "/usr/X11R6/lib/X11/fonts/Type1"
FontPath "/usr/share/fonts/X11/100dpi"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi"
FontPath "/usr/share/fonts/X11/75dpi"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi"
FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
Load "i2c"
Load "bitmap"
Load "ddc"
Load "extmod"
Load "freetype"
Load "glx"
Load "int10"
Load "vbe"
EndSection

Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "CoreKeyboard"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "es"
EndSection

Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ImPS/2"
Option "Emulate3Buttons" "true"
EndSection

Section "Monitor"
Identifier "L1920P"
VendorName "LG Corporation"
ModelName "L1920P"
HorizSync 30.0 - 83.0
VertRefresh 56.0 - 75.0
Option "DPMS"
EndSection

Section "Device"
Identifier "nVidia Corporation C51G [GeForce 6100]"
Driver "nvidia"
EndSection

Section "Screen"
Identifier "Default Screen"
Device "nVidia Corporation C51G [GeForce 6100]"
Monitor "L1920P"
DefaultDepth 24
Option "HWCursor" "off"
Option "SWCursor" "on"
SubSection "Display"
Depth 1
Modes "1280x1024" "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 4
Modes "1280x1024" "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "1280x1024" "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 15
Modes "1280x1024" "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "1280x1024" "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 24
# Modes "1280x1024" "1024x768" "800x600"
Modes "1280x960" "1024x768" "800x600"
EndSubSection
EndSection


Thanks.

are there any errors in the xorg log when you try and run at 1280x1024 ?

cat /var/log/Xorg.0.log | grep EE

You could try using a modeline for that resolution.

Horizontal Resolution: 1280
Vertical Resolution: 1024
Vertical Refresh Rate: 75.00 Hz
Horizontal Refresh Rate: 80.42 KHz
Dot Clock Frequency: 151.83 MHz

# V-freq: 75.00 Hz // h-freq: 80.42 KHz
Modeline "1280x1024_75" 151.83 1280 1360 1544 1888 1024 1024 1027 1072


You would insert it like this..

I'm afraid about Dot Clock Frequency: 151.83 MHz. What does it mean? Can it damage my PC?

I posted my problem here too:

http://www.linuxforums.org/forum/deb...tml#post629822

But I can't resolve the problem :-S Do you have an idea about it?

And... sorry I forgot to ask you about this values:

Modeline "1280x1024_75" 151.83 1280 1360 1544 1888 1024 1024 1027 1072

Why did you choose this values 151.83 1280 1360 1544 1888 1024 1024 1027 1072?

Thank you.

the modeline generation script http://www.bohne-lang.de/spec/linux/modeline/ I used chose that dot clock frequency based on the resolution and refresh rate specified.

Ahh I see in the other thread, DPMS (that's your video card querying the monitor for supported modes) says 1280x1024 @ 60Hz not 75..
Use the following modeline instead..


Horizontal Resolution: 1280
Vertical Resolution: 1024
Vertical Refresh Rate: 60.00 Hz
Horizontal Refresh Rate: 63.73 KHz
Dot Clock Frequence: 109.62 MHz

# V-freq: 60.00 Hz // h-freq: 63.73 KHz
Modeline "1280x1024_60" 109.62 1280 1336 1472 1720 1024 1024 1026 1062



for more info on modelines, and to answer your other question, you could start here:
Dot Clock
http://en.wikipedia.org/wiki/XFree86_Modeline