In the meantime, everyhing's working an a X1 Extreme G3, especially after upgrading to 15.4 But now we got a new X1 Extreme G5 and everything starts from the beginning. It's similar to the discussion here: https://forums.lenovo.com/t5/Ubuntu/Suspend-Not-Working-on-X1-Extreme-Gen-5/m-p/5168735?page=3#5851849 I'm not able to get suspend/hibernate working on that X1G5. What details can I provide to solve that issue?