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Hello I've decided to try my hand at installing OS X on my E6420 for the 2nd time. I just installed El Capitan 10.11.5 using Jake Lo's guide. Everything appears to be fully functional except for one thing, my laptop monitor will always turn off during boot. The system is running fine in the background but my monitor just turns off for whatever reason. Unplugging and repluging the charger is my current work around. This works when have access to a wall outlet, but otherwise I am stuck with the monitor off. I am using the e6420 bootpack with the DSDT-LowRes.aml as my display's resolution is 1