I'm connecting my RPI4 to an old HDMI display. The display is suspended upside-down, so I need to be able to rotate the screen 180 degrees. My config.txt looks like this:
# Copyright (C) 2009-2014 Stephan Raue ([email protected])
According to what I've read online, that display_hdmi_rotate flag should rotate the display, but it's being ignored. (I've tried setting it to all different values, as well as having tried the deprecated display_rotate option. No dice.) I noticed that if I comment out the line
in /flash/distroconfig.txt, I'm able to get the display to rotate... but then obviously the OS doesn't boot and just hangs on the splash screen.
I'm using version 9.2.3