I have Lenovo T420 "4180-AH4" with the following specifications:
- Intel ® Core™ i5-2520 M
- Only Integrated HD 3000 "0x0126"
- Ram DDR3 4GB
- Intel 82579LM Gigabyte Network Connection
I managed in installing Lion (10.7 - Then updated with Combo update 10.7.2) on my external HDD WS "250 GB" formatted in MBR.
When I have used the attaced DSDT file in the initial post and it cause the screen to be black after the booting "Dual Link-Backlight" as described in the link below , but I think network was working fine, so I used a patched DSDT file found on the internet and now display is working fine but with these issues
- Enthernet is now connecting but fail to obtain intenet connectivity "DHCP-Manaually" - EthernetbuildIn used in start up - Kext AppleIntelE1000
- The battery/AC is not recognizable by the system
Also I am having another trouble installed XCode, it says you have to upgrade to Mac OS 10.6.6, Altough "About Mac" says that I have version 10.7.2
I have tried to edit the DSDT file but I am not that experienced enough to do so (, so if someone can help me about it, that would be GREAT.
The used files are attached, I need to compine the two 2 DSDT files, so I can use the one in the initial post but contains the fix for dual link as described in the above link.
Thanks a lot.