Comment 24 for bug 1774950

@ferconsigli - thanks for reporting your issue too. Much appreciated!

From the specs for a Lenovo Legion Y720 they seem to be using 7th Generation Intel Core processors - is that what's running on your Lenovo Legion with the suspend problem?

In an answer to matalak's question, cascagrossa said:

  I believe it is the buggy nouveau driver. Try adding:

  nouveau.modeset=0

  to GRUB_CMDLINE_LINUX in the /etc/default/grub file, after that run:

  sudo update-grub
  sudo reboot

One of the comments said that it worked for them and others.

I don't think that it will fix it for you but I'm curious to know if it means your laptop will still fail to suspend but in a different way ;)