lid sleep wake

Hi there! A few months ago I successfully installed Sierra on my Dell Inspiron 5520 Now almost everything works, except EGPU(obvious) and my laptop doesn't go to sleep after closing the lid(it's actually my problem), but it detects lid opening. When I send my laptop to sleep, it can be waked...

hi, after upgrading from Sierra to high Sierra everything seems to be okay but sleep is broken. When I click sleep the screen turn grey, laptop can't wake up after sleep. how can I fix it? Thank you files attached

Howdy! Rehabman was helping me with my backlight issues on this thread. http://www.tonymacx86.com/yosemite-laptop-support/172419-solved-backlight-issues-xps-14-a.html Afterwards I noticed sleep would not work when the lid closed. It never has worked.. I just assumed it would when I got the...