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Since Yosemite my Macbook 11inch mid 2011 does not see second thunderbolt display anymore. My MacBookPro 13inch Early 2013 works fine, but it swaps the screens after an (re)boot

2015-10-11   Views:0

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Since Yosemite my Macbook 11inch mid 2011 (supports Thunderbolt) does not see the second thunderbolt display anymore. My MacBookPro 13inch Early 2013 works fine, but it swaps the screens after an (re)boot. Does anyone else experience these problems a

Since Yosemite my Macbook 11inch mid 2011 (supports Thunderbolt) does not see the second thunderbolt display anymore.
My MacBookPro 13inch Early 2013 works fine, but it swaps the screens after an (re)boot.
Does anyone else experience these problems and/or have solutions

The replay answer
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Hello ROBLAHAY,
I'm sorry to hear you are having this issue with your MacBook Air. I also apologize, I'm a bit unclear on the exact configuration you are describing. If you are talking about using two external Thunderbolt displays (in addition to the internal display) with your Mid 2011 MacBook Air 11-inch, you may want to be aware that only a single external Thunderbolt display is supported on that model, as noted in the following article:
3. How many Apple Thunderbolt Displays can I use with my Mac in OS X?
The table below indicates how many Thunderbolt displays can be connected to Thunderbolt-capable Mac computers in OS X.
Computer
Maximum connected displays
Thunderbolt-capable Macs with Intel HD Graphics 3000 integrated graphics can support one connected Apple Thunderbolt Display (27-inch).
MacBook Air (Mid 2011)
MacBook Pro (13-inch, Early 2011) and (13-inch, Late 2011)1
Mac mini (Mid 2011), 2.3 GHz
Mac mini with Lion Server (Mid 2011)
One Thunderbolt display
Thunderbolt ports and displays: Frequently asked questions (FAQ) - Apple Support
If you are using just a single external display and still having issues, you may find the troubleshooting steps outlined in the this article helpful:
Apple computers: Troubleshooting issues with video on internal or external displays - Apple Support
Sincerely,
- Brenden

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