I have an app that works fine in both Landscape and Portrait mode, but it demos best in Portrait mode. I'd like to show this app on a phone with HDMI output (either from MHL, Slimport, or micro-hdmi) and screen mirroring to an external display.
Presently, I have a Samsung Galaxy Nexus. However, as has been pointed out by many, this phone forces the orientation to Landscape when an HDMI display is attached through the MHL adapter (see Set up portrait video output from Galaxy Nexus, HDMI/MHL possible in portrait mode?, HDMI output, Portrait mode?)
Does anyone have any suggestions on how I can do HDMI Output with mirroring and keep my phone in portrait mode?