Hi guys ,
I saw a few people having problems with the HDMI output.
I wanted to let you know that i got the HDMI output working on my almost fully working e6220 10.7.3 (hd3000).
I used this guide to edit the DSDT and AppleintelSNBgraphicsFB:
https://osxlatitude.com/index.php?/topic/1969-guide-for-enabling-vga-and-hdmi-in-intel-hd3000-gpu/
Now i can plugin the hdmi cable at any time and it switches directly to the big screen (1920x1080) . No need for key combo at startup.
VGA not tested and havent got the HDMI audio working yet. Im still using voodoohda.
Only issues im still looking for:
good audio(AppleHDA),Multi-touchpad,Cardreader, Minor bugs: Slow USB transfer speeds and after display goes standby it has be enabled again by power button.