I have a Dell XPS 15 9550 (i7-6700HQ 16GB-RAM 4K 512GB SSD Samsung). I'm experiencing the same problem that @Ben has described.
My story: I went from 16.04 to 16.10 (no serious issues with the previous versions) and then 17.04 almost a week ago, everything with the previous versions was great but seems like 17.04 has two really bothering issues with my device, this one and "slow mouse pointer issue". Guys seems like there isn't any solid fixes so far. Should I disable "APST" too? -- 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
