E6420 10.10.1 NVS4200 install issue

[sanename]

Thanks Jake, The solution in the post above also helped me with my E6420 with Nvidia. The HDMI and internal display now work.

 

I have the same issue as well. With docking station only VGA works, no video to external monitor on DVI. Any thoughts on what might be the issue.

 

Thanks.

[Jake Lo]

DVI doesn't seem to be working for me too. I used a Display Port to DVI adapter and that works, but can't get both working at the same time. It's either LCD with VGA / LCD with HDMI / LCD with DP. Can't get both external running at the same with LCD close either.

[Jake Lo]

Sorry, forgot to mention in the guide. Sleep is not working with the nvidia card. To achieve sleep, you'll need to use the Intel HD3000.

Just replace with the DSDT-off.aml and change the BIOS to Optimus Enable. No need to rebuild.

[wern]

If you want to use your E6420 with the nvidia card go to insanelymac and download the dsdt with working sleep, not sure if it works with the boot-pack provided by JakeLo

HDMI-Audio is only working with voodoohda, brightness change only with FN+F3 Pause

[wern]

If you use JakeLo's AppleHDA.kext change the layout-id to 0C

dsdt edit

"layout-id", 
                            Buffer (0x04)
                            {
                                0x0C, 0x00, 0x00, 0x00
                            }

or rename the layout12.xml.zlib from applehda.kext/contents/resources to layout0.xml.zlib and repair permissions

[Jake Lo]

There's no whitelisting for Dell. Intel Wireless were never supported.