FWIW, I'm also affected by this issue, but on a completely different system (Razer Blade Stealth, Samsung PM951, Fedora 26 - kernel 4.13.4), so I don't think specifically targeting Asus Prime B350m-A + Samsung 960 EVO would do it.
As the OP, I was having frequent random SSD disconnects (the issue appeared in late August), and thought I was affected by bug 1678184. Using nvme_core.default_ps_max_latency_us=6000 allows the system to be stable again as long as it's awake, but still I sometimes have the issue when the system is awoken from sleep mode. Please let me know if providing additional infos would help. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1705748 Title: Samsung SSD 960 EVO 500GB refused to change power state To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1705748/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
