The same here on a Acer E5-771 with nvidia card on Ubuntu 14.04. Since updates gave 4.4.0 Kernel, the suspend is broken.
When I send to suspend, the suspend doesn't actually complete: the power led stays blue instead to turn to blink orange, and the computer freezes. No way to recover but completely kill it holding the power button and restart the system (it means you lose everything you were doing). It's for sure a broken kernel, I reverted to an old 3.9 and the suspend works flawlessy. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1574125 Title: [Lenovo G50-70] suspend not working after upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1574125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs