meismyles Posted May 4, 2015 Share Posted May 4, 2015 Spec- Samsung RF711- Intel Core i7 2670QM (Sandy Bridge)- NVidia Optimus Graphics: Integrated Intel HD3000 - Dedicated NVidia GT 540M(No option to choose graphics card in BIOS)- 8GB Ram - Series 6 chipset (I think - how can I verify?) - Resolution: 1600x900 OS X Version: 10.10.3 Bootloader: Cham Install Method: UniB Trying to install Yosemite 10.10.3 on my laptop and got it installed and booting but the graphics are very laggy and only running at 1024x768 (should be 1600x900).System report shows Intel HD 3000 3mb (Device ID: 0x0116 - No Kext Loaded) so I'm assuming the issue is related to this as it definitely has more VRAM?On a side note I haven't yet got the machine booting without using UniB on a USB stick (although I was assuming I can sort this out afterwards?). I have installed Chimera but it didn't seem to do anything.Also, not sure if it would be better for me to be using Clover?Tried So Far1. A wide range of boot flags including 'GraphicsEnabler, nv_disable, dart, IGPEnabler, PCIRootUID, npci=0x2000, maxmem=4096' but none of these seem to make a difference no matter what combination of options I choose for them.2. Intel Graphics Patch in MultiB.3. A few different other Kexts including this.I used Kext Utility to install these but upon restart the system will then not boot failing at:failed to load kext com.apple.driver.AppleIntelSNBGraphicsFB (error 0xdc008017)This then requires me to boot into the OS X installation and remove AppleIntelSNBGraphicsFB.kext using Terminal to get the machine to boot again.4. Tried patching DSDT with a couple of patches. This and the patch mentioned here.I'm using MaciASL to do this and (checking it compiles with no errors) and then saving DSDT.aml in 'Extra/'. None of these have any effect either (except for occasionally stopping the keyboard and trackpad from working and then requiring me to make a full re-install).Does anyone have any suggestions on how I can get this working?Thanks in advance for any help and let me know if any other info is required. Link to comment Share on other sites More sharing options...
RehabMan Posted May 4, 2015 Share Posted May 4, 2015 Spec - Samsung RF711 - Intel Core i7 2670QM (Sandy Bridge) - NVidia Optimus Graphics: Integrated Intel HD3000 - Dedicated NVidia GT 540M (No option to choose graphics card in BIOS) - 8GB Ram OS X Version: 10.10.3 Bootloader: Cham Install Method: UniB Trying to install Yosemite 10.10.3 on my laptop and got it installed and booting but the graphics are very laggy and only running at 1024x768 (should be 1600x900). System report shows Intel HD 3000 3mb (Device ID: 0x0116 - No Kext Loaded) so I'm assuming the issue is related to this as it definitely has more VRAM? On a side note I haven't yet got the machine booting without using UniB on a USB stick (although I was assuming I can sort this out afterwards?). I have installed Chimera but it didn't seem to do anything. Also, not sure if it would be better for me to be using Clover? Tried So Far 1. A wide range of boot flags including 'GraphicsEnabler, nv_disable, dart, IGPEnabler, PCIRootUID, npci=0x2000, maxmem=4096' but none of these seem to make a difference no matter what combination of options I choose for them. 2. Intel Graphics Patch in MultiB. 3. A few different other Kexts including this. I used Kext Utility to install these but upon restart the system will then not boot failing at: failed to load kext com.apple.driver.AppleIntelSNBGraphicsFB (error 0xdc008017) This then requires me to boot into the OS X installation and remove AppleIntelSNBGraphicsFB.kext using Terminal to get the machine to boot again. 4. Tried patching DSDT with a couple of patches. This and the patch mentioned here. I'm using MaciASL to do this and (checking it compiles with no errors) and then saving DSDT.aml in 'Extra/'. None of these have any effect either (except for occasionally stopping the keyboard and trackpad from working and then requiring me to make a full re-install). Does anyone have any suggestions on how I can get this working? Thanks in advance for any help and let me know if any other info is required. What chipset do you have (6-series or 7-series)? What is your screen resolution? It is not about the number of solutions used. It is whether you used the correct solutions for your hardware. Link to comment Share on other sites More sharing options...
meismyles Posted May 5, 2015 Author Share Posted May 5, 2015 I'm pretty sure its a series 6 chipset but not sure how to verify this 100%? Screen resolution is 1600x900. I wasn't trying to say I had tried lots of solutions, was just trying to write down what I had done so that anyone who can possibly help me knew what I had tried. Link to comment Share on other sites More sharing options...
Allan Posted May 5, 2015 Share Posted May 5, 2015 I'm pretty sure its a series 6 chipset but not sure how to verify this 100%? Screen resolution is 1600x900. I wasn't trying to say I had tried lots of solutions, was just trying to write down what I had done so that anyone who can possibly help me knew what I had tried. Download DPCIManager and go to PCIList section, and post a screenshot here. Link to comment Share on other sites More sharing options...
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