AnsweredAssumed Answered

lcd display image in different offset

Question asked by ranshalit on Dec 3, 2015
Latest reply on Dec 8, 2015 by Yuri Muhin

Hello,

 

I have configured a 240x320 LCD with timing correcpond to 240 pixel line and 512 lines (instead of 320). Any other configuration did not work with my LCD.

Now I can finally get a stable image , but each time the image starts at different line (and the rest of the screen is blank).

on doing:

dd if=/dev/zero of=/dev/fb0

It resolved this issue.

Does anyone anyone knows why the above command resolve the problem ? I would assume that framebuffer content is the same even before doing this command, so i don't understand the effect.

I also do not understand what the reason for the different line offset in the first place.

 

Thanks,

Ran

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