Riotz Posted March 9, 2010 Share Posted March 9, 2010 So I have spent the last 3 days trying to get this video card working with full acceleration and with dual displays. After finally getting it to run full acceration using the 10.6.2 ATI4800Controller.kext and GraphicsEnabler=Y in the com.apple.Boot.plist I couldnt figure out how to get the Dual Monitor working. The solution proved to be so simple I was dumbfounded. I was using a DVI2VGA converter on the secondary monitor which was plugged into the port furthest from the MB. The Main monitor was a DVI cable plugged into the port closes to motherboard. Simply swapping these cables resulted in both displays working flawlessly. Here is the information on my card. A093100049589 HD4870 1GB GDDR5 PCI-E DUAL DVI/TVO PN 288-1E131-000SA SKU# 11133-19 Device ID: 9440 Hope this helps someone. Link to comment https://www.insanelymac.com/forum/topic/212603-sapphire-hd-4870-1gb-dual-monitors/ Share on other sites More sharing options...
lastExile Posted March 10, 2010 Share Posted March 10, 2010 Nice info Link to comment https://www.insanelymac.com/forum/topic/212603-sapphire-hd-4870-1gb-dual-monitors/#findComment-1426258 Share on other sites More sharing options...
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