Dec 11, 2010 The Matrox DualHead2Go and TripleHead2Go GXMs work in conjunction with your system's existing GPU to provide high-quality, uncompressed graphics and video across maximum resolutions of dual. 1-16 of 19 results for 'dualhead2go mac' Skip to main search results Amazon Prime. TripleHead2Go T2G-DP-MIF DP Edition Graphics Card. 3.4 out of 5 stars 34. More Buying Choices $329.00. Matrox Graphics T2G-D3D-IF TRIPLEHEAD2GO DIGITAL EDITION - EXTERNAL MULTI-DISPLAY ADAPTER. More Buying Choices $329.00.
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It may be an actual issue with Yosemite not the Matrox. Update 10.10.3 like 10.9.2 has caused incredible issues with video output. It's being reported on forums for all types of Macs (MBP, iMac, Mac Pro, etc.). It appears that they messed up how Yosemite works with video drivers. For example, I lose all three of my monitors connected to my Mac Pro after about 3 minutes of run time. They simply turn off and will not come back up without a hard crash and restart. There was a supplimental update this morning to address some of the video issues. However, it didn't help repair mine at all. You may want to make sure you get that update as it may help alleviate your issue.
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January 2023
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