I have the same issue on XPS 13 9300 with Ubuntu 18.04. Answering @kaihengfeng's question: with s2idle it works just fine from waking up perspective but as Mikhail mentioned it drains battery a lot.
I have the same issue on XPS 13 9300 with Ubuntu 18.04.
Answering @kaihengfeng's question: with s2idle it works just fine from waking up perspective but as Mikhail mentioned it drains battery a lot.