Test 5 - Change the background color

root@mixer_proj:~# modetest -M xlnx -w 34:bg_color:255

Test 6 - Change the output resolution

root@mixer_proj:~# modetest -M xlnx -s 49:1920x1080@BG24

setting mode 1920x1080-60Hz@BG24 on connectors 49, crtc 47