To follow-up. Earlier today I fresh-booted and didn't use the APST disable command - my machine crashed out with read-only errors after minutes.
I then updated grub to use `nvme_core.default_ps_max_latency_us=250` as suggested - it was stable for 6 hours, through 2 suspends. A little while ago it crashed with read-only errors. I'm now going to try `nvme_core.default_ps_max_latency_us=0` in GRUB. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1678184 Title: APST quirk needed for Samsung 512GB NVMe drive To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1678184/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs