Moderators Jake Lo Posted March 27, 2014 Moderators Share Posted March 27, 2014 Nope, the Latitude E6420 link in your signature. But can assume that dosent relate to my keyboard/mouse issue which is happening with the old extra you gave me. Taking all the above into account, wuld I have a better experence using OSX 10.9? If so how lumpy will it be on this laptop from a perf. point of view. There's been so many updates and development with this model since you've last installed ML. You will have a better experience with this new OS and guide linked for E6520 with Optimus enabled. Link to comment Share on other sites More sharing options...
b1k3rdude Posted April 5, 2014 Share Posted April 5, 2014 There's been so many updates and development with this model since you've last installed ML. You will have a better experience with this new OS and guide linked for E6520 with Optimus enabled. Ok thanks mister, when I get around to playing with this again I'll come back here with the results. Link to comment Share on other sites More sharing options...
LingKrauz Posted July 12, 2014 Share Posted July 12, 2014 hey, i was trying to do this and i was unable to access the first link and it says that the page no longer exists. 404 Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted July 12, 2014 Moderators Share Posted July 12, 2014 hey, i was trying to do this and i was unable to access the first link and it says that the page no longer exists. 404What's your system spec? Do you have Optimus Nvidia Nvs4200m? see this. Or only HD 3000? See this. Link to comment Share on other sites More sharing options...
kristoftof Posted August 8, 2014 Share Posted August 8, 2014 Hello everybody, First, many thanks to all for hard work provided, results are there My specs : E6420 / i5 2520M / 4GB / HD3000 / 250 WD blue hdd @Jake Lo : for me, installation following your second link failed for me (install begin but stuck 5 sec after Apple logo, no video)What has work for me is your first link above and yes I'm sure to not have nv card in my laptop.I follow your instructions and all works for me but :* install process failed if "USBBusFix=No" is not set* osx takes 1 min 30 to load, I see the screen login for 1/10 sec and pc turn to hibernateI have to push power button (it is blinking) to keep it from this state, waiting for 30 sec then I can putmy password in login screen.After that, all is right, I have a functional osx Any idea please about this issue ? Thanks and have a nice day Link to comment Share on other sites More sharing options...
Administrators Hervé Posted August 8, 2014 Administrators Share Posted August 8, 2014 Depending on your BIOS version and built-in LCD res, this guide may (or may not) apply to you... If you have a lower res screen, I'm pretty sure all you need is the correct DSDT. Link to comment Share on other sites More sharing options...
kristoftof Posted August 9, 2014 Share Posted August 9, 2014 Hi Hervé and thanks for fast response. My bios is up to date to A21 Screen is same as your's 1600*900 384MB I will try a new build today with your patch, then I will post result. Cheers from Cahors Link to comment Share on other sites More sharing options...
kristoftof Posted August 9, 2014 Share Posted August 9, 2014 Depending on your BIOS version and built-in LCD res, this guide may (or may not) apply to you... Hi Hervé, I've checked with "lspci -nn", exactly the same hardware conf as your's Tried your guide, install process begins but stucks at 5 sec Boot with "-v" flag : <panic> cpu3 too long to responds, backtrace : AppleIntelCPUPowerManagement PS : why did you set screen resolution on 1440*900 in dsdt ? Link to comment Share on other sites More sharing options...
Administrators Hervé Posted August 9, 2014 Administrators Share Posted August 9, 2014 I did not set screen res to 1440x900 in DSDT, I used a pre-made DSDT; can't remember where I got it from. If you meant the Chameleon boot plist, I guess you already know it's just cosmetic for the Apple Logo startup screen and the reason for such resolution is that I use Cham Wizard to manage by boot plists... For the rest, you did not forget the very last lines of the guide, did you? Link to comment Share on other sites More sharing options...
kristoftof Posted August 9, 2014 Share Posted August 9, 2014 For the rest, you did not forget the very last lines of the guide, did you? Pff, you're right Man, My cpu is a 2520M ... Will be back soon and thanks very much Link to comment Share on other sites More sharing options...
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