[SOLVED] Dell Latitude E6420 - Yosemite - Keyboard/trackpad problem

[juju7767]

Hello everybody,

 

I installed Yosemite on my Dell Latitude E6420 with this guide step by step.

 

When I boot on my USB key and launch Yosemite from HDD, keyboard and trackpad work well.

But when I boot directly from my HDD (where yosemite is installed), keyboard and trackpad doesn't work, I have to connect an usb keyboard and usb mouse.

 

Could you please help me ?

 

Thanks in advance.

[Hervé]

You should consider that guide obsolete, that's why it's in the archived section.

 

If you're using Clover, you're probably injecting kexts, in which case make sure you've copied the same kexts on your HDD (and it's Clover EFI partition if applicable) as found on your USB key.

 

There are better guides these days:

• https://osxlatitude.com/index.php?/topic/7478-dell-latitude-e6xxxe7xxx-yosemite-install-guide/
• https://osxlatitude.com/index.php?/topic/8506-dell-latitude-inspiron-precision-clover-guide/
• this one is for the E6220 but the genral principles remain (just adapt the bootpack to E6240 DSDT and screen res if applicable) )https://osxlatitude.com/index.php?/topic/7914-dell-latitude-e6220-with-i5-2520m-hd3000-and-1366x768-lcd-mavericksyosemiteel-capitansierra/

[juju7767]

I downloaded the file E6420Yosemite.zip from the guide I used.

I put the files Clover/*.* from this zip into the folder /EDI/Clover from my Usb key.

 

After the installing, I mounted the EFI partition from my HDD with Clover Configurator and I put the same files from the zip to /EFI/Clover from my HDD.

[Jake Lo]

Make sure it's booting from the files from the EFI partition and not somewhere else. Check the root of the HDD, make sure there's no EFI folder there.

[juju7767]

It works now !

I'm even on MacOs Sierra

 

Thanks a lot.