Connect the MBP to the HDMI to the TV, using a DVI to HDMI, (I ususally use HDMI 1)I just plug it in and it just shows up. If you have an isues go to system preferences> displays> click detect diplays. If there is an issue click gather windows, make sure mirror is clicked and you should be good to go. This post was done on a Philips, and it went fine. Click gather windows for audio. This was done on a 10.6.8, but have done it mant times on 10.7.5. If you have a problem post back and i will do what we need to help. All the best
This doens't help as I don't have a DVI on my MBP, just thunderbolt so I can't use a DVI to HDMI cable.
I spent 7 years working in video projections and live AV using macs to output to large festival screen and tvs etc and have never had a problem connecting with DVI or VGA with Macs before. Could it be the thunderbolt that's causing issues?
I am using 10.7.5, I don't know if information might help solve it at all?
Any other suggestions?
I not using Mountain Lion, OS 10.7.5 is Lion.
If you have any other suggestions tomorrow I would be very grateful.
It seems like it would be the Philips TV that is causing the problem as I have a smaller 20" LG TV that I link the MBP up to on my desk as a second monitor and it works fine, along with numerious projectors I have connected it to.
If anyone else has had a similar problem but found a fix I would love hear from you!
Sorry for the delay getting back to you, the Apple site was down most of the day. I've included screen shots of my MBP 10.6..8/The Lion is exactly the same. I've had both Philips and mbp hot , used all 3 HDMI inputs and connected them and they work. You can try creating a standard account and try that, also you can try a pram reset. Connect the units, power them up, leave the Philips on and zap the pram on the MBP.
Pram reset: Power off MBP, power back up holding the following keys, option,command,P,R(no commas) continue to hold these keys)before the start chime) till you hear the start chime 2 times then release.
Reboot all of it.
Hope this helps.
Also maybe the adapter or cable is not happy.
Other than the above, I just don't know, as my MBP's work fine, video/audio.
Maybe a hardware issue?
I've totally failed to get to the first base here. When I connect my MBP to the Philips TV this is what I see:
I don't see the Arrangement tab, and the system doesn't detect the TV - How do I get the Arrangement tab to show? There's no Gather Displays and pressing Alt and clicking on Detect Displays does absolutely nothing. I'm running OS X 10.8.2 (12C60). Any ideas?