Q: How do I restore signal from my Mac Pro to my Viewsonic monitor, connected by VGA?
I have a Mac Pro running OSX version 10.7.5. Connected to it is a 24-inch Viewsonic monitor, the only monitor connected. Last week everything was fine. I shut it all down one night, and the next morning when I tried to start up, there was no signal from the Mac to the monitor.
The screen displays a "No Signal" message.
I checked the input on the monitor, and it is correctly set to PC.
The computer starts up normally. I can hear it doing its thing.
The monitor starts up normally. No flashing or blips.
I have tried rebooting, disconnecting the monitor from the computer, shutting everything down and unplugging, then replugging. I tried hooking up the old monitor (using the VGA connection) and booting up again, with the same result.
I tried restating the NVRAM (found instructions on this site)and it made no difference.
Would there be any merit to getting an HDMI cable to connect them?
It seems to me that if the computer is not recognizing the monitor, trying a different cable would make no difference, but I am very much an "end-user" at this stage and would appreciate any advice.
Thanks!
Mac Pro, Mac OS X (10.6.7), iPhone calendar seems fine.
Posted on Jul 26, 2016 3:50 PM