Administrators Hervé Posted January 28, 2014 Administrators Share Posted January 28, 2014 I can't enable Optimus because the pc is locked from my factory. Do you know how to unlock bios settings? No such lock from factory build I'm afraid; this is done by companies or individuals who want to secure their systems... Link to comment Share on other sites More sharing options...
ramon Posted February 1, 2014 Share Posted February 1, 2014 I install with Optimus disabled but now sleep won't work. How to fix it? Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted February 1, 2014 Moderators Share Posted February 1, 2014 As stated in the guide, sleep does not work with optimus disabled. Link to comment Share on other sites More sharing options...
El Capitán Posted February 1, 2014 Share Posted February 1, 2014 Using this guide I was able to get my E6520 working flawlessly with 10.9.1. I previously ran ML 10.8.2 using NV4200M graphics and I must say the performance of my new setup runs circles around my old one. Sleep and AirPlay alone made this a worthwhile effort. I also noticed my laptop runs a lot cooler and quieter. Just wanted to say thanks to sandflee for posting this guide and sharing his Extra folder. My specs are: Latitude E6520, BIOS A12 | i5-2520M 2.5GHz vpro| 8GB DDR3 | nVidia 4200M/HD3000, 1920x1080 | Dell DW1510 If you guys like I can attach my Extra folder for reference. Just let me know. Link to comment Share on other sites More sharing options...
Wired4Data Posted February 12, 2014 Share Posted February 12, 2014 Hi guys, I'm hoping one of you can help me. I have an E6520, BIOS A19 i7-2620M 2.70GHz vpro 8GB | nvidia 4200M/HD3000 | DW1510. I've tried downloads from this post and also Jake Lo's writeup using Optimus with a disabled 4200M. My problem is i simply cannot get the system to boot correctly using the supplied Extensions. Also with various virtualization options turned on in the BIOS i get different boot results. I can boot without graphics acceleration if VT for Direct I/O and TPM is disabled, I can't boot at all with those options enabled. I've attached my vanilla DSDT hoping that someone can help me with this process. I have a system running 10.9 already and it works great. I'd like to get my laptop running as well. Thanks in advance dsdt.aml.zip Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted February 13, 2014 Moderators Share Posted February 13, 2014 That boot pack won't work on a vpro model as of yet.Try this instead. You won't be able to get sleep working with this config. Link to comment Share on other sites More sharing options...
Wired4Data Posted February 13, 2014 Share Posted February 13, 2014 Thanks Jake, I can confirm that everything but sound and the trackpad works with the link you provided. I'm adding the appropriate file for trackpad support, would you happen to know which kext will add sound support? Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted February 13, 2014 Moderators Share Posted February 13, 2014 The boot pack should already have audio (voodooHDA and AppleHDADisabler).If it's not working, go ahead and remove them and just add this to Extra/Extensions and run my fix (quick). Link to comment Share on other sites More sharing options...
zodiacg Posted March 1, 2014 Share Posted March 1, 2014 Thanks guys! I have successfully install mavericks and it runs well. The problem i'm facing is that a utility called PCKeyboardHack doesn't work with internal keyboard. It works well with my wireless keyboard, but has no effect on my internal keyboard. Does this have something to do with the VoodooPS2Controller.kext? Is there any replacement to it? Thanks in advance Link to comment Share on other sites More sharing options...
sandflee Posted March 10, 2014 Author Share Posted March 10, 2014 Never used PCKeyboardHack. Sorry. Jake, Have you upgraded to 10.9.2 yet? I lost sound with the upgrade. I tried update the AppleHDA from the following post and also upgraded the Chameleon to r2377. https://osxlatitude.com/index.php?/topic/6302-solved-e6530-update-from-1091-to-1092-lose-sound/ Chameleon r2377 gave me a crash stating Memory Allocation Error. Any idea? I had to start from USB and revert back to r2266. Link to comment Share on other sites More sharing options...
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