Thanks,

Apparently I changed the overscan of the hmdi....
It works now,

Thank you very much,
grtz,
Wim

Hello, I have recently bought a 7" touchscreen display from Raspberry Pi. But when i use it, not the entire screen is used, i have black borders. I think this is also the reason the touch screen is not right calibrated. I tried editing the overscan configurations in the config.txt but it didn't work...