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wrong screen resolution in opensuse and fedora

Hi,

I have a Acer 5002 laptop with sis display card. Ubuntu sets it easily at 1280x800 but suse and fedora both fails and sets at 1024x800 or something. I tried xrand as described somewhere but it fails to calculate gamma values at desired resolution.

Is there a concrete way to set the resolution at 1280x800 in either suse and fedora or both?

xrandr: Failed to get size of gamma for output default

command output

Quote:

xrandr --newmode "1280x800_61.00" 84.96 1280 1344 1480 1680 800 801 804 829 -HSync +Vsync

You can create an xorg.conf file (/etc/X11/xorg.conf); you need root permissions to create / edit that file.

Code:

Section "ServerLayout"

    Identifier    "Layout0"

    Screen      0  "Screen0" 0 0

EndSection



Section "Files"

EndSection



Section "Monitor"

    Identifier    "Monitor0"

    VendorName    "Dell"

    ModelName      "E773S"

#    HorizSync      30.0 - 70.0

#    VertRefresh    50.0 - 160.0

    Option        "DPMS"



#    Modeline "1152x864_75.00"  104.00  1152 1224 1344 1536  864 867 871 905 -hsync +vsync

    Modeline "1280x800_61.00" 84.96 1280 1344 1480 1680 800 801 804 829 -HSync +Vsync 



EndSection



Section "Device"

    Identifier    "Device0"

    VendorName    "Intel"

EndSection



Section "Screen"

    Identifier    "Screen0"

    Device        "Device0"

    Monitor        "Monitor0"

    DefaultDepth    24

    SubSection    "Display"

#        Modes      "1152x864_75.00"

        Modes      "1280x800_61.00"

        Depth      24

    EndSubSection

EndSection

I've marked the lines that apply to your resolution in bold red; you might want to calculate for 60Hz using cvt 1280 800 60 (as 61Hz seems an odd frequency). You can enable (uncomment) vertrefresh and horizsync if necessary; those values however might not apply to your monitor.