Originally Posted by Perseus71
If I understand you correctly, then you'd love to go AOSP but worried the MHL Port HDMI output will break ?
If that's what you want to do, then why don't you do following.
1. Get all the hardware setup in order if not done already. This includes, Converter & HDMI Cable.
2. Test to see if the setup works with existing Touchwiz.
3. Take a Nandroid and then flash a Pure AOSP Rom, use MX Player or some other good quality player and see if the setup works again ?
If it fails, you can try VLC to mirror screens or use DLNA via your router ? You do have the option to go back via the Nandroid.
1 Cyanogen mod is a definite no-go on HDMI, and I found that out after I'd bought all the cables... (for anyone who finds this thread, you have to use S3 specific MHL adapters)
2 It currently works great on 4.1.2 TW Roms. I have already experimented with the 4.1 and 4.2 roms on TW and AOSP.
3 Right now once you go to 4.3 you can't go back to earlier versions (that I know already works), but at least one person did report that HDMI worked on the OTA versions. I'm just not sure if AOSP developers have/can/will be pulling HDMI drivers into their S3 builds.
I've found that using Archos Video and adding my HD as a network share is much easier than making a media server.