Waveshare 7" screen problem

[22avanvooren]

Hello, i'm new to raspberry pi

I've been having a problem with my display. I have a Waveshare 7" 800x480 rev2 screen, but only 80% is being used!
how do i get the full screen to be used? im using Rasbian as my OS.

Any solutions?

Thanks!!!!

[gordon77]

Try hdmi_group =2 and hdmi_mode =14 in /boot/config.txt

Or try..
#set specific CVT mode
hdmi_cvt 800 480 60 6 0 0 0

#set CVT as default
hdmi_group=2
hdmi_mode=87

[22avanvooren]

Thanks. That worked. Still learning what it is like using a Raspberry Pi.