Find the answer to your Linux question:
Results 1 to 2 of 2
Hi, after installing the new ATI drivers I've problems with my display. I'm using Fedora Core 6. My display is a CRT-Monitor by Videoseven (N110S) http://www.videoseven.de/mediadata/...10S_english.pdf I'm using KDE 3.5.5 ...
Enjoy an ad free experience by logging in. Not a member yet? Register.
  1. #1
    Just Joined!
    Join Date
    Dec 2006
    Posts
    1

    Display problems-How to set up a certain resolution & frequency?


    Hi,

    after installing the new ATI drivers I've problems with my display. I'm using Fedora Core 6. My display is a CRT-Monitor by Videoseven (N110S)http://www.videoseven.de/mediadata/...10S_english.pdf

    I'm using KDE 3.5.5 The programs with graphical interface witch are installed on KDE don't work properly. I can select resolution and frequency but not all possible resolutions and frequencies are listed, dispite of the fact that they are written to my /etc/X11/xorg.conf But even if I choose a listed resolution and frequency only the resolution is beeing changed and the frequency isn't.

    Does anyone have some further ideas how I could solve this problems? I'd like to have the resolution "1280x960" and a freqency of "100Hz". Also possible would be "1152x864" with "100Hz".

    I read in some other threads and forums that I've to set up my /etc/X11/xorg.conf Are there some entries missing or wrong?

    My xorg.conf looks like this:

    # Xorg configuration created by system-config-display

    Section "ServerLayout"
    Identifier "single head configuration"
    Screen 0 "aticonfig-Screen[0]" 0 0
    InputDevice "Keyboard0" "CoreKeyboard"
    EndSection

    Section "Files"
    EndSection

    Section "Module"
    Load "bitmap"
    Load "dbe"
    Load "ddc"
    Load "dri"
    Load "extmod"
    Load "fbdevhw"
    Load "freetype"
    Load "GLcore"
    Load "glx"
    Load "int10"
    Load "record"
    Load "type1"
    Load "vbe"
    # Load "v4l"
    EndSection

    Section "ServerFlags"

    # not supported by ATI proprietary driver
    Option "AIGLX" "false"
    EndSection

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

    Section "InputDevice"
    Identifier "Mouse0"
    Driver "mouse"
    Option "Device" "/dev/input/mice"
    Option "Buttons" "10"
    Option "ZAxisMapping" "4 5"
    Option "Emulate3Buttons" "false"
    Option "ButtonMapping" "1 2 3 6 7 8 9 10 4 5"
    EndSection

    Section "Monitor"
    Identifier "aticonfig-Monitor[0]"
    Option "VendorName" "ATI Proprietary Driver"
    Option "ModelName" "Generic Autodetecting Monitor"
    Option "DPMS" "true"
    HorizSync 30-110
    VertRefresh 50-160
    EndSection

    Section "Device"
    Identifier "Videocard0"
    Driver "fglrx"
    Option "VideoOverlay" "on"
    EndSection

    Section "Device"
    Identifier "aticonfig-Device[0]"
    Driver "fglrx"
    Option "VideoOverlay" "on"
    EndSection

    Section "Screen"
    Identifier "Screen0"
    Device "Videocard0"
    DefaultDepth 24
    SubSection "Display"
    Viewport 0 0
    Depth 24
    Modes "1280x1024" "1280x960" "1280x800" "1152x864" "1152x864" "1152x768" "1152x768" "1024x768" "1024x768" "800x600" "800x600" "640x480" "640x480"
    EndSubSection
    EndSection

    Section "Screen"
    Identifier "aticonfig-Screen[0]"
    Device "aticonfig-Device[0]"
    Monitor "aticonfig-Monitor[0]"
    DefaultDepth 24
    SubSection "Display"
    Viewport 0 0
    Depth 24
    Modes "1280x1024" "1280x960" "1280x800" "1152x864" "1152x864" "1152x768" "1152x768" "1024x768" "1024x768" "800x600" "800x600" "640x480" "640x480"
    EndSubSection
    EndSection

    Section "DRI"
    Group 0
    Mode 0666
    EndSection

    Section "Extensions"
    Option "Composite" "False"
    EndSection


    I also read that if you want to have a certain resolution and frequency you have to generate some modelines and at them to my xorg.conf. Here are some generators witch I found in the internet:

    http://zaph.com/Modeline/
    http://www.bohne-lang.de/spec/linux/modeline/
    http://xtiming.sourceforge.net/cgi-bin/xtiming.pl
    http://sh.nu/nvidia/gtf.php

    But I don't know which one I should use as for the same parameters I get different modelines. Anyone knows witch one is the best?

    Thx!

    Hannes

  2. #2
    Just Joined!
    Join Date
    Jun 2008
    Posts
    21
    I also struggle with this and do not know all the answers.
    From what I know, you get the modeline that you should paste into your xorg file by typing:
    gtf 1280 960 100
    What is returned will be the modeline for a resolution of 1280x960 at 100Hz.

    However, it is common for the xorg file to disrespect your wishes. To "FORCE" your wishes to be respected, you may type at the konsole:
    --no-use-edid-freqs
    also you may try
    --no-use-edid
    although it is not recommended.

    nvidia-xconfig(1) - Linux man page

    These options may only be valid for NVIDIA, and I noticed you are using ATI. So I dont know if this will work, but it may get you closer.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •