I've done a bit more narrowing down on this and found that the problem occurs between kernel 3.14.51 and kernel 3.15.0-RC1. I know this isn't kernel bisecting (haven't done this before so will give it a go but not sure whether I'll be successful).
Oddly, in Ubuntu 14.10, I can suspend/resume fine with kernel 3.16.0-38, but this doesn't work in 15.04. Odd. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1416557 Title: [Acer Aspire V5-573G] suspend/resume failure To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1416557/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs