Blank screen after Sleep/Hibernate on ubuntu 18.04

After I close the lid, the screen will not turn on. I followed the instructions given in Ubuntu FAQs and it worked in one shot. This will work for the new Ubuntu 18.0.x.

1. Pull up a Terminal and run:

   sudo nano /etc/default/grub
   

   to pull up the boot loader configuration.

2. Look for the line:

   GRUB_CMDLINE_LINUX=""
   

   and make sure it looks like this:

   GRUB_CMDLINE_LINUX="resume=UUID=41e86209-3802-424b-9a9d-d7683142dab7"
   

3. Save the file with Ctrl+X and y. You can use this UUID.

4. Run:

   sudo update-grub
   

   and wait for it to finish.

5. Run:

   sudo nano /etc/initramfs-tools/conf.d/resume
   

   and make sure to add:

   resume=UUID=41e86209-3802-424b-9a9d-d7683142dab7
   

   (with your UUID of course in place of mine if you want).

6. Save the file with Ctrl+X and y.

7. Run:

   sudo update-initramfs -u
   

8. Reboot!