[RCar H3 AGL] Display settings not correct

I got the board RCar H3 v1.1 (RTP0RC7795SKBX0010SA00) and created a AGL(Automotive Grade Linux) agl-image-weston version 10.0.3 jellyfish, but the display is not showing correctly the pictures and is not in accordance to the u-boot variables.

I.E. I have the u-boot bootargs as "... vmalloc=512M video=HDMI-A-1:1920x1080@60..." with the load_dtb var loading the r8a7795-es1-h3ulcb.dtb, and the display says that the image is not in a correct format. I changed to 1280x720@60 and the display outputs the correct resolution but at 25Hz. I changed dtb to the one for the board v2.0+ and the display outputs at double the refresh rate that it's set on the variables, with high system instability.

What could be the root of the problem? As far as I know AGL jellyfish uses yocto project 3.1 which is still compatible with the H3 v1.1.