Presenting a keynote from my cMBP 13

[jahall05]

I have a particular problem I am trying to solve.

I will be presenting a keynote in my human resources management class in college. Our classrooms have projectors and computers as well as a variety of pigtails to connect computers (VGA, HDMI are the two video/sound components I have seen available).

My issue is the last time I tried to use my mid-2012 cMBP 13 I used a thunderbolt > HDMI adapter and attached it to the HDMI available for the smart classroom. The results were that my videos would not play on the projector and I would get no sound. I had to quickly convert the presentation to powerpoint and use office instead. This time around I would like to get this to work instead.

I was thinking about using a remote service from the desktop in the classroom, like logmein...Would this also pull the audio? I don't want the audio to play from my laptop sitting on my desk...

I would like to add I also have an iPad Mini with retina display and an iPhone 5 if there is a solution to using one those devices instead.

Any thoughts?

 

[jahall05]

Update: I think part of my issue was that the speaker system is separate from the projector, which is why I wasn't getting sound on videos.

I think I may have to use a VGA adapter and use the audio pigtail.

 

[TonyYYZ]

There would likely be too much latency when using LogMeIn and your video/audio might not play fluidly. But it looks like you overcame your original issue anyway.

 

[jahall05]

I am going to test it tomorrow if the classrooms are open. If not, Monday at some point.

I think the HDMI was getting confused because there was no speaker on the projector (or it is not turned up). So I guess I will see if the VGA adapter solves the issue.

 

[jahall05]

OK. It seems to work...I had to really mess with it though to get it working. I had to check a box that said "mirror the display" to get it to detect the projector. Sound worked fine. I am wondering if this was the issue the entire time with the HDMI connector (not checking "mirror display").

I did read somewhere about holding down "option" when in the display preferences and then hitting the "find displays" option. I will have to see if that yields better results.