howto switch off backlight for TFT Display?

May 03, 2005 0 Replies

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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