HK1234 Posted June 15, 2018 Share Posted June 15, 2018 I have a problem...I have a Mac Pro "Eight Core" 2.8 (2008). My old graphics card "died" and I bought another one. The new card is AMD Radeon R9 270X, 4096mb. With OS X El Capitan it almost works. One monitor is working and one display port (dvi) is working, but I can´t get a picture from HDMI or any other port. This type of problem is new for me. What can I do? Link to comment https://www.insanelymac.com/forum/topic/334505-amd-radeon-r9-270x-only-one-port-working/ Share on other sites More sharing options...
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