text: Lenovo G50-70 Screen Display Problem - Lenovo Community
  So Finally I have to come here because of my Lenovo Laptop,
  Well Problem is that from few days i am facing Display problem in my laptop it seems like whenever I turn on my Laptop only Power comes in motherboard but not in screen.
  Because whenever I On my Laptop my laptop lights go on but screen remain black But after multiple Force restart from Power Button It start displaying.. But with the time Its getting serious day by day & its not turning on it even after many tries.. Please guide me how to overcome this issue . It seems like some current issue or don't know.
  Please let me know is this possible to fix this issue if yes how what wil be cost because i have already read in many threads many people facing similar issues but i don't find any proper answer for this
  My laptop is out of warranty now so even I can't give it for warranty claim so before going somewhere i preferred to check with Lenovo Experts so thats why i am here...
  Pelase guide me How To FIx This Horrible Issue
  Re: Lenovo G50-70 Screen Display Problem
  First of all, I would check memory modules. It's possible that one of the modules failed.
  1. Try reconnecting memory modules. Remove them from the motherboard and install back in.
  2. Test your laptop with each module installed separately. If one of them is faulty, the laptop will start when the bad module is removed.
  I am facing somewhat similar issue since last two weeks and my laptop is no more under warranty.
  Whenever I hit the power button, the screen blinks for a minute to sometimes upto 5 minutes before I see "Lenovo" on the screen. It just does not boot all that time. Once it is on, there are no issues. Please check the video to understand the issue and help me with the solution.
  how to resolve this issus
  ‎03-21-2016 08:34 PM - edited ‎03-21-2016 08:38 PM
  Actually Here i want to tell you one more thing what i missed earlier that it also happen when i close my laptop LID & laptop go to sleep mood. And when I open the LID for waking up the laptop from sleep mood lights turn on but laptop no more work Display remains black & in the same situation I also tried HDMI cable with my TV but no connection was showing (actually first this problem happening in this mood after that now its also happening at the time of laptop starting ).. It shows like it's not only screen problem because just realize whenever laptop properly go on laptop keyboard Light also blink but when screen remain black & laptop power lights go on that time keyboard lights don't blink. Well come to final that means its not only screen problem or may be its not screen problem 
  What you suggest me in this case
  Can you try turning ON or OFF the Hybrid Sleep? Here's how you'll get to the settings, Open your Lenovo Energy management and turn off the Hard Drive power Saver option.
  In addition to this, when you put the computer to sleep, is the power button blinking?
  ‎03-21-2016 11:37 PM - edited ‎03-21-2016 11:38 PM
  Well coming to your power light blinking option Yes Its blinking whenever turning it to sleep but when open LID back even it stop blinking both lights go stable but i got nothing after that & i have to restart.
  & further I'll give try to your HYBIRD SLEEP OPTION & revert you back later.
  But do you think Disabling the options of HardDisk & keyboard HYBIRD SLEEP Mode wil work in case where I am facing the same problem when I Go for power on my laptop when laptop is completely OFF
  ‎03-22-2016 10:02 AM
  Could you help me with my issue as well? I have posted the video as well.
  Yes. Hybrid sleep is a combination of sleep and hibernate—it puts any open documents and programs in memory and on your hard disk, and then puts your computer into a low-power state so that you can quickly resume your work. That way, if a power failure occurs, Windows can restore your work from your hard disk.
  If your laptop is G50-80, this Maintenance Manual should guide on how to get into the internal modules. Please re-seat the hard disk & swap the Ram with different slots & try if it boots to BIOS.