Ubuntu MATE 17.10 with kernel 4.15.x & 4.16.x - hibernate / resume from hibernate works as expected.
Ubuntu (vanilla) & Ubuntu MATE 18.04 Beta 1 / Beta 2 with kernel 4.15.x & 4.16.x - resume from hibernate does not work.
See https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759860
Ubuntu MATE 17.10 with kernel 4.15.x & 4.16.x - hibernate / resume from hibernate works as expected.
Ubuntu (vanilla) & Ubuntu MATE 18.04 Beta 1 / Beta 2 with kernel 4.15.x & 4.16.x - resume from hibernate does not work.
See https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/1759860