I am now using 8.1.1 on a rpi4, was on rpi3. My screen will not rotate. Someone else must be having the same issue using a vertical screen, I don't see any other posting on the forum on how to fix. Please direct me to it if you know it exists, sorry for being new to this forum.
I have changed my config file with:
display_rotate=1
display_hdmi_rotate=1
dislay_lcd_rotate=1
lcd_rotate=1
All have not rotated.