Also occurred on an ASRock Z87 Pro4, after several suspend/resume cycles. It might be a race condition.
Linux desktop 3.13.0-37-generic #64-Ubuntu SMP Mon Sep 22 21:28:38 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1364546 Title: [ASRock Z77 Extreme4] suspend/resume failure [non-free: nvidia] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1364546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs