nube Posted December 10, 2014 Share Posted December 10, 2014 Hi, so i installed the niresh yosemite and everything works except the GT440 that i have so far managed to make it appear at system info as EVGA GT440 1024MB. But if i boot i get a black screen unless i use nv_disable=1. What can i do? i tried the web drivers but didn't work. Mavericks setup was so perfect! I upload my iron and DSDT iMac.ioreg.zip DSDT.aml.zip Link to comment https://www.insanelymac.com/forum/topic/303232-black-screen-with-gt-440/ Share on other sites More sharing options...
gils83 Posted December 10, 2014 Share Posted December 10, 2014 GraphicsEnabler=Yes #13 no dsdt and no nv_disable=1 Link to comment https://www.insanelymac.com/forum/topic/303232-black-screen-with-gt-440/#findComment-2093774 Share on other sites More sharing options...
nube Posted December 10, 2014 Author Share Posted December 10, 2014 I have GraphicsEnabler=Yes by default, but my question is: Now in yosemite do i need the dsdt? I used to need it in Mavericks for correct alc889 sound support, but out of the box everything except the graphics works without dsdt. The thing is when i first didn't have the DSDT I still had black screen with or without web drivers. The only thing that changed was when i tried to add the SMBIOS to the info plist in the stock kext so that my system recognises the gfx card as a full 1024MB and not 3MB card. Link to comment https://www.insanelymac.com/forum/topic/303232-black-screen-with-gt-440/#findComment-2093781 Share on other sites More sharing options...
gils83 Posted December 10, 2014 Share Posted December 10, 2014 voodooHDA Link to comment https://www.insanelymac.com/forum/topic/303232-black-screen-with-gt-440/#findComment-2093784 Share on other sites More sharing options...
nube Posted December 10, 2014 Author Share Posted December 10, 2014 But I don't have sound issues in Yosemite, just the gfx card that gives black screen unless i use the disable flag. I tried what you said, took out the dsdt and the no disable flags and I get another black screen. Link to comment https://www.insanelymac.com/forum/topic/303232-black-screen-with-gt-440/#findComment-2093787 Share on other sites More sharing options...
BNZfive Posted December 10, 2014 Share Posted December 10, 2014 Check here: http://www.insanelymac.com/forum/topic/302979-how-i-got-my-gt-640-to-work/?p=2089989 I use graphicsenabler=no, but you may require =yes I believe. If you are on 10.10 all you will need to do is download the DP1 NVDA drivers (linked in the post I provided) and place them on your desktop. Then install them into your system with KestBe... Monster If you are on 10.10.1 follow the guide. Obviously you will need to boot with nv_disable=yes to get into the system. Link to comment https://www.insanelymac.com/forum/topic/303232-black-screen-with-gt-440/#findComment-2093808 Share on other sites More sharing options...
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