XFree86 tutorial?

This is a discussion on XFree86 tutorial? within the Linux Programming forums, part of the Platform Specific Boards category; Hi! I am going to use XFree86 to enable my C program to set all properties a screen can have, ...

  1. #1
    Algorithm engineer
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    Post XFree86 tutorial?

    Hi!

    I am going to use XFree86 to enable my C program to set all properties a screen can have, i.e. resolution, frequency, horizontal and vertical sync and front and back porch, etc. Is there some good tutorial for teaching me how to do this? All information I have found is quite insufficient.

    I have found some interesting functions though: XF86VidModeSwitchToMode, XF86VidModeModModeLine, XF86VidModeGetModeLine and XF86VidModeValidateModeLine. Also the very similar structs XF86VidModeModeLine and XF86VidModeModeInfo could be useful. I could try some trial and error, but I would really appreciate if there where some good learning resource. Thanks to those who know some.
    Come on, you can do it! b( ~_')

  2. #2
    Cat without Hat CornedBee's Avatar
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    You could look at the source of the xrandr client program.
    All the buzzt!
    CornedBee

    "There is not now, nor has there ever been, nor will there ever be, any programming language in which it is the least bit difficult to write bad code."
    - Flon's Law

  3. #3
    Algorithm engineer
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    Can I learn how to change refresh frequency, length of the vertical and horizontal signals and the front and back porch?
    Come on, you can do it! b( ~_')

  4. #4
    Cat without Hat CornedBee's Avatar
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    Frequency, definitely. I don't know what the other things are.
    All the buzzt!
    CornedBee

    "There is not now, nor has there ever been, nor will there ever be, any programming language in which it is the least bit difficult to write bad code."
    - Flon's Law

  5. #5
    Captain Crash brewbuck's Avatar
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    Source code to "xvidtune" is probably also useful.

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