You can't use DSDT from E6520 on your E6530. Just follow Bronxtech's advice. You'll need MacIASL.app to modify *.aml file.
Also look for
0x04, 0x00, 0x66, 0x01
and change it to
0x03, 0x00, 0x66, 0x01
Check also in org.chameleon.Boot.plist
if you have IntelCapriFB=4, change it to 3