Screen question

[mixmama]

Hello All,
Recently I bought a new screen for my studio and kept my old screen so I could have 2.

Before I had the new screen, for the old screen, I used a VGA to Thunderbolt adapter and went in my Mac Pro. Works perfectly.

NOW, I have the 2 screens. So I hooked up the new screen from the OTHER Thunderbolt port in my Mac Pro to the HDMI port of the screen. Only the new screen works.....didn't touch how I had the old screen hooked up but it just stopped working. So I wonder....can I not use both Thunderbolt ports at the same time? Can't imagine.

Thanks for any help.
Karen Kane

[mixmama]

And now, Pro Tools 10 is giving me a message that it can not communicate with HDMI. Screen is flashing and I had to shut down. Any thoughts?

[Craig F]

I have no idea what computer you're using
No shipping Mac Pro has Thunderbolt

[musicman691]

Originally Posted by mixmama

Hello All,
Recently I bought a new screen for my studio and kept my old screen so I could have 2.

Before I had the new screen, for the old screen, I used a VGA to Thunderbolt adapter and went in my Mac Pro. Works perfectly.

NOW, I have the 2 screens. So I hooked up the new screen from the OTHER Thunderbolt port in my Mac Pro to the HDMI port of the screen. Only the new screen works.....didn't touch how I had the old screen hooked up but it just stopped working. So I wonder....can I not use both Thunderbolt ports at the same time? Can't imagine.

Thanks for any help.
Karen Kane

The only Macs that have 2 Thunderbolt ports are the 27" iMacs, and certainly not the G5 in your profile. Also Thunderbolt is not available as an add-on card. Several MacBook Pros have Thunderbolt ports but only a single one. What computer are you REALLY working on?

[mixmama]

I am working on a Mac Pro purchased in March 2013. It has TWO thunderbolt ports and a DVI port.

[Craig F]

Those are not Thunderbolt ports they are mini DisplayPort ports on the video card

[mixmama]

thank you. That would explain a lot. My question still stands though, can I use both at once for 2 screens?

[mixmama]

Originally Posted by Craig F

Those are not Thunderbolt ports they are mini DisplayPort ports on the video card

And would you know anything about why I got that message from PT10 about not communicating with HDMI?

[musicman691]

Originally Posted by mixmama

And would you know anything about why I got that message from PT10 about not communicating with HDMI?

How do you have the displays set up - mirrored or extended desktop? It's been a while since I dealt with multiple screens on one Mac but take a look in the 'Displays' section of system preferences. That might make a difference. See this page for info on display port to HDMI adapters: http://support.apple.com/kb/HT4241?viewlocale=en_US

[mixmama]

Originally Posted by musicman691

How do you have the displays set up - mirrored or extended desktop? It's been a while since I dealt with multiple screens on one Mac but take a look in the 'Displays' section of system preferences. That might make a difference. See this page for info on display port to HDMI adapters: http://support.apple.com/kb/HT4241?viewlocale=en_US

Displays not mirrored. Have gone to the Displays section of system preferences countless times and can not get any help from there. Thanks for the link, when I'm not SO EXHAUSTED, I will read through that.