1) I can receive HDMI signal from my Windows 8 PC and Windows 7 notebook.
BUT I can't receive HDMI signal from othersources like :
a) Samsung MHL HDMI adapter
b) Netgear PTV3000
The screen keep balck (with backlight on) and nothing happens on screen. No artefact or else.
You have to know that I have another 7" multi touch LCD (Lilliput 779gl-70np-c-t) and it work like a charm with all HDMI sources.
I could make a video to show you but it won't show you more than I explained you above.
2) I have connected the touch screen to my Samsung Galaxy Note 3 device running Android 4.4.2 and on my Samsung Galaxy Note Pro 12.2 (through OTG cable) and the touch panel is correctly recognized as external HID.
PROBLEM: the tapping (pressing) is not recognized as selection/confirmation...the only thing that happens, when I tap the screen, is to move the pointer (a dot) in correspondence of the coordinated of my finger..like I moved a mouse HID without left clicking but with a dot on the screen.
It's not possible for me to scroll or to select something --> unusable under Android.
Maybe it is a matter of drivers but I have no specific ideas. I have no specific drivers for the device.