finke Posted August 19, 2014 Share Posted August 19, 2014 Hello you guys, I am currently running OSX 10.9 perfectly on my Dell 7520 laptop (Will set up Yosemite on another partition these days ). The problem that still exists is that I am unable to use either the HDMI or VGA port because the switchable graphics (Radeon HD 7730m & HD4000) are not supported. That means that the system is currently running on HD4000, but the Radeon would probably do much better. So now to my question: By setting the discrete 7730m as primary graphics card in BIOS (no clue how to get to that function, maybe modded BIOS?), could I get it running? This would provide me the feature to use a second monitor. The 7xxx-series should all be supported by OSX, but I have not really heard anything about the 7730. My system specs: Core i5 3rd Gen HD4000 / Radeon HD 7730m(?) OSX 10.9 Thanks in advance finke Link to comment Share on other sites More sharing options...
falanx Posted August 19, 2014 Share Posted August 19, 2014 You can't. It's not supported by OS X AFAIK. You should focus on disabling it with DSDT edits. Link to comment Share on other sites More sharing options...
finke Posted August 19, 2014 Author Share Posted August 19, 2014 Hm okay, thank you. What I wanted to achieve is a second monitor and/or the ability to use a beamer at school. A workaround would be a USB to HDMI/VGA/DVI adapter, but the video quality is not that good I think. Does anyone have experience on this with OSX? Link to comment Share on other sites More sharing options...
falanx Posted August 20, 2014 Share Posted August 20, 2014 I don't know, but hopefully if you disable your gpu than you can use your intel hd for hdmi. I use my HD 4000 for power a second monitor and as far as I can tell, man, works like a charm on very high resolutions. I am very satisfied with it. Link to comment Share on other sites More sharing options...
finke Posted August 23, 2014 Author Share Posted August 23, 2014 I think I need to flash another bios then since the dell one does not offer any additional features to the boring usual ones. :/ Link to comment Share on other sites More sharing options...
finke Posted August 25, 2014 Author Share Posted August 25, 2014 I installed a modded BIOS, so now I can choose to use either switchable graphics, the dedicated gpu or the internal HD4000. setting the gpu as primary card will probably brick the laptop, so I keep my fingers of it. now, that only the IGFX is set as primary, I should be able to edit the AppleIntelFramebufferCapri kext and get hdmi/dvi working, right? Link to comment Share on other sites More sharing options...
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