Q: HDMI not connected
When I plug the HDMI cable I have no problem to watch my Mac screen on the TV. Once in awhile, it does not work and the TV screen displays "not connected" while the Mac screen does not "shrink" as it usually does when plugging the HDMI cable. I tried 1. disk utility repair, Restart, unplug the TV, but those actions don't help. Usually I try the next day and it works as usual. The problem is clearly with the computer because my 2nd TV reacts the same. What is the problem?
MacBook Pro, Mac OS X (10.5.6)
Posted on Mar 11, 2016 6:08 PM
Community Specialists
Hi there keskeskeksa,
It sounds like you are connecting your TV to your computer and it isn't working exactly as it should. I would use the troubleshooting steps from the following article:
Get help with video issues on external displays connected to your Mac
restart your Mac in safe mode to reset the display resolution to defaults.
If starting in safe mode doesn't resolve the issue, reset your Mac's NVRAM and SMC to reset the video ports on your Mac to their defaults.
Thank you for using Apple Support Communities.
Posted on Mar 13, 2016 6:01 PM

