howto switch off backlight for TFT Display?

From: Ernst Murnleitner (mur_at_awite.de)
Date: 05/03/05

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    Date: Tue, 03 May 2005 21:29:59 +0200

    Hello,

    maybe someone can help me:

    I have a small panel pc here which runs Linux 2.4.20. I use QT/E. I
    want, that the backight of the display switches off after a certain time
    while the touch screen is not touched.

    I don't know, at which place this should happen:

    - is it a kernel function
    - has the window manager to do this

    And:

    - Do I have to program something new or is there a function for
    switching off usually implemented somewhere, e.g. the framebuffer driver?

    Thank you for your help

    Ernst

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