Hello, I would like to ask what is the effect of wiping frame buffer (dd if=/dev/zero of=/dev/fb0) ? I have some issue with framebuffer timing on LCD 240x320. I could not find a timing with width=240, height=320 which result in stable picture, but the following timing gave me stable ppicture with LCD: Pixel clock=6500 Width=240 Height=512 <<------------- instead of 320 !! Hfp=1 Hbp=100 HSW=14 Vfp=1 Vbp=1 VSW=10 The only strange thing is that I had to use height 512 instead of 320. When I try to render image it is stable but it starts in different line every time. And here comes the important part: After doing: dd if=/dev/zero of=/dev/fb0 It resolved the issue , and a new image starts from line 0. I don't understand why. Does anyone have any idea ? Do you think I still have a timing problem with LCD ? Regards, Ran