Hallo,
we have a Quad Core Wandboard with Ubuntu 16.04 running.
Now we will rotate the display.
with xrandr -o left in a xterm will work.
But we will rotate before starting.
also we make a test with disabled x-server. (systemctrl set-default multi-user.target).
But the display will not rotate.
we have add follow to uEnv.txt
videoinfo=video=mxcfb0:dev=hdmi,1280x720M@60,if=RGB24,rotate=4 fbmem=28M
videoargs=setenv bootargs ${bootargs} ${videoinfo}
But only the text resolution will be smaller.
Thanks
Jimmy