Re: can't change the resolution

From: Roman Stöckl-Schmidt (roman_at_stoeckl-schmidt.de)
Date: 03/25/05

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    To: debian-user@lists.debian.org
Date: Fri, 25 Mar 2005 15:28:03 +0100

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    Angelina Carlton wrote on 25.03.2005 14:02:
    | On Fri, Mar 25, 2005 at 12:15:29PM +0000, Yehia Mowiena wrote:
    |
    |>I had installed the debian on my VAIO notebook model PCG-FX370 but the
    |>screen resolution is 640*480 and no other available resolutions can't be
    |>choosen the vga card is intel 815
    |>the best resolution to my lcd is 1024*768
    |>please help me as i am a new user
    |
    | It will help to post the relevant part of your /etc/X11/XF86config

    | file.
    Which is usually called XF86Config-4 from XFree84 v4 on.

    | You can reconfigure X with the command: dpkg-reconfigure xserver-xfree86
    This will definitely be the safest bet, but just to give you a hint the
    appropriate section should look something like this on your machine:

    Section "Screen"
    ~ Identifier "Default Screen"
    ~ Device "Generic Video Card"
    ~ Monitor "Generic Monitor"
    ~ DefaultDepth 24
    ~ SubSection "Display"
    ~ Depth 8
    ~ Modes "1024x768" "800x600"
    ~ EndSubSection
    ~ SubSection "Display"
    ~ Depth 15
    ~ Modes "1024x768" "800x600"
    ~ EndSubSection
    ~ SubSection "Display"
    ~ Depth 16
    ~ Modes "1024x768" "800x600"
    ~ EndSubSection
    ~ SubSection "Display"
    ~ Depth 24
    ~ Modes "1024x768" "800x600"
    ~ EndSubSection
    EndSection

    Where "Default Screen" and "Default Monitor" is to be substituted for
    the value in the "Identifier" part of the appropriate "Monitor" or
    "Device" sections respectively.
    On my box that part looks like this:
    Section "Device"
    ~ Identifier "Generic Video Card"
    ~ Driver "i810"
    ~ VideoRam 131072
    EndSection

    Section "Monitor"
    ~ Identifier "Generic Monitor"
    ~ HorizSync 22-82
    ~ VertRefresh 56-76
    ~ Option "DPMS"
    EndSection
    If anything is unclear just type `man XF86Config-4' at the command line
    and you'll receive all the information you need (and more!)

    | I tend to *only* check the box of the target resolution I am looking for.
    [snip]
    | This way its forced to at least try the resolution I want first. I am
    not sure
    | this is necessary now but it seems to work for me...
    This is unnecessary imho, just make sure the desired "default
    resolution" is the first name in the Modes line of the Display
    Subsection to the Screen section as indicated above, RTFM =).
    Another note:
    If after having changed your configuration and restarted the X server
    your screen is only partially shown on the monitor and you can only see
    the other parts by moving your mouse to the appropriate edges of the
    screen you have to add a line like

    Virtual 1024 768

    to the Display subsection corresponding to the used color depth for
    every color depth you want to use.

    This should be enough info to do what you want =)
    Cheers from Germany, Roman.
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