Guest Posted December 24, 2014 Share Posted December 24, 2014 I have sucessfully installed Yosemite 10.10.1 on my PC but i have laggy graphics. Im able to boot with GraphicsEnabler=No but not with GraphicsEnabler=Yes. Last run into an error My System is: AMD FX-8350 ASRock 970 Extreme4 AMD Radeon HD 7900 Series Any Ideas? Link to comment Share on other sites More sharing options...
Rampage Dev Posted December 24, 2014 Share Posted December 24, 2014 You don't need injection. Link to comment Share on other sites More sharing options...
Guest Posted December 25, 2014 Share Posted December 25, 2014 What does that mean? Sorry but i dont Understand that! Link to comment Share on other sites More sharing options...
Rampage Dev Posted December 25, 2014 Share Posted December 25, 2014 What does that mean? Sorry but i dont Understand that! You only need to change the Device ID to a supported versions not true injection. Link to comment Share on other sites More sharing options...
Guest Posted December 25, 2014 Share Posted December 25, 2014 And where do I have to change ist ? Link to comment Share on other sites More sharing options...
gils83 Posted December 25, 2014 Share Posted December 25, 2014 use ACPIP and IOPCI + drivers usb of Mavericks 10.9 (13A603) #14 My Asus 7950 3092 CUII works good ootb Link to comment Share on other sites More sharing options...
Guest Posted December 25, 2014 Share Posted December 25, 2014 Well, thanks for your tips, but i understand nearly nothing. I will read more about it and give them a try, thanks for help! Link to comment Share on other sites More sharing options...
gils83 Posted December 26, 2014 Share Posted December 26, 2014 the problem is quite complex but unfortunately no one really seeks the cause nor dsdt or SSDT will not change anything at all, the problem exists on some AMD UEFI motherboard, old motherboard with cpu FX do not have this bug problem due to ACPIPlaform.kext, I found this solution while waiting for better days Link to comment Share on other sites More sharing options...
Guest Posted December 26, 2014 Share Posted December 26, 2014 Can you give me a quick Tutorial ? That would great :-)! Link to comment Share on other sites More sharing options...
foodfightr Posted January 15, 2015 Share Posted January 15, 2015 I am also having this same issue with my 7850. I had full acceleration working in 10.9.5. For each update in Mavericks I just had to edit AMD7000Controller.kext and AMDRadeonX4000.kext to replace 0x68181002 with 0x68191002. That method is not working now that I've upgraded to Yosemite 10.10.1. Here are some things I've noticed: In Mavericks 0x68191002 did not appear by default in the stock kexts. In Yoesmite 0x68191002 does appear by default in the stock kexts. By changing 0x68181002 to 0x68191002 it makes it so that 0x68191002 actually appears twice in the file. It detects the graphics card as "AMD Radeon HD 7xxx" in the System Information. Booting with GraphicsEnabler=Yes results in a black screen. Booting with GraphicsEnabler=No results in full resolution desktop but no acceleration. This is without changing the stock/default Yosemite 10.10.1 kexts. Please advise. Thanks! Link to comment Share on other sites More sharing options...
gils83 Posted January 15, 2015 Share Posted January 15, 2015 my HD 7850 , works ootb and PCIRootUID=1 or 0 Link to comment Share on other sites More sharing options...
Rampage Dev Posted January 15, 2015 Share Posted January 15, 2015 my HD 7850 , works ootb and PCIRootUID=1 or 0 No, bad idea to ever use that flag when PCI0 in the DSDT is not Zero. Link to comment Share on other sites More sharing options...
foodfightr Posted January 15, 2015 Share Posted January 15, 2015 my HD 7850 , works ootb and PCIRootUID=1 or 0 I just tried booting with PCIRootUID=1 and PCIRootUID=0 and it didn't work. I get full resolution OOTB but not hardware acceleration. Please advise! Link to comment Share on other sites More sharing options...
gils83 Posted January 15, 2015 Share Posted January 15, 2015 I just tried booting with PCIRootUID=1 and PCIRootUID=0 and it didn't work. I get full resolution OOTB but not hardware acceleration. Please advise! what device id graphics-card ? what model 1024 or 2048 ? No, bad idea to ever use that flag when PCI0 in the DSDT is not Zero. no bad idea DSDT Link to comment Share on other sites More sharing options...
Rampage Dev Posted January 15, 2015 Share Posted January 15, 2015 what device id graphics-card ? what model 1024 or 2048 ? no bad idea DSDT Fix the issue or compound the issue. You are compounding the issue and doing nothing to address it. Link to comment Share on other sites More sharing options...
gils83 Posted January 16, 2015 Share Posted January 16, 2015 Fix the issue or compound the issue. You are compounding the issue and doing nothing to address it. do not look for complications where there are not, I have a Sapphire HD 7850 1024, simply connect it to view or operate completely without DSDT flag, she fully recognized, it works as well as a graphics Mac edition card. Now he should know his exact model before going into unnecessary complications often a good chameleon and everything works perfectly and it's the same for the Asus 7950 3092 CuII v2;) I aggravates anything, I try to understand the problem that I did not on the same graphics chipset. Link to comment Share on other sites More sharing options...
Codinger Posted February 28, 2015 Share Posted February 28, 2015 Why you didn't try to install clover to EFI? Fixed 7MB vesa mode for me Link to comment Share on other sites More sharing options...
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