Originally Posted by interestor
When you plug the cable and adapter into the phone, does the monitor just blink on and show the phone screen?
Also, does the phone's home screen only rotate after being plugged into the monitor? (like mine does)
My cables to the tv and monitor definitely work. The adapter might not, but its affecting the home screen rotation makes me think it does work; then maybe Cyanogenmod or Android 4.4.4 doesn't work.
I'm a little late on this but since I just tested this today: This may be a CM or KK thing as you say. I had the same symptoms you reported when testing with AHD on CM11 1/1/15 msm8960 jbbl nightly but with the same TV setup and cables stock JB phone system worked great with HDMI. More detail From this post http://forum.xda-developers.com/show...&postcount=676
which I posted put up before discovering this thread.(text pasted below)
"I got a Micro HDMI male to HDMI female adapter and had a chance to test in the 1/1/15 MSM8960 JBBL nightly . It did not work although the phone and TV were clearly talking through the cable when connected:
- Phone media sound mutes.
- Phone goes into forced landscape mode for all screens including desktop regardless of native and theme based rotation settings.
- TV screen input type displays HDMI for a few seconds before fading (an indication that TV has seen an HDMI device).
- When cable is disconnected a flash of colored squares on the TV indicates a change of state at the TV, the phone goes back to portrait mode and resumes playing sound.
From what I've read this may still be a limitation of CM but there is also a lesser possibility that this is due to limitations of the TV. The only reports of successful HDMI connections I've seen for the Atrix HD are in stock but I did not have long enough access to the test rig to try stock and eliminate TV and cabling as potential issues. Will do that next chance I get.
[EDIT] Tested in stock on the same gear and HDMI worked great. Phone went into landscape as described above and the TV picked up the image of the desktop fine with minimal cropping of the side edges - possibly correctable at the TV. Media audio plays to TV through HDMI connection with no addition configuration required at TV or phone. Not sure what (if anything) is missing from CM in regards to to fully negotiating the connection and sending the video/audio."