Hi Andy, I just checked the kernel you suggest: 2.6.38-4.31 on the ProBook 6550b.
With this kernel the machine is able to recover successfully from suspend. I tested hibernate behavior as well, and it also works fine. So this kernel appears to have solved the issue. Thanks! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/719474 Title: HP ProBook 6550b - System doesn't resume after suspend -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs