It's not a proper solution, but upgrading to Ubuntu 15.04 might help. I've upgraded (in place) more than a week ago, and haven't seen the black-screen-on-resume issue yet on my Lenovo Y2P.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1418295 Title: Black screen after resuming from suspend To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1418295/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp