Tried that latest one... still fails after suspend but should I be using nvme_core.default_ps_max_latency_us=1500 ?
But as I have said before it does bother me that the suspend and resume operations seem to overlap and all are logged on resume. Booted am: Sep 7 10:02:44 phs08 kernel: [ 0.000000] Linux version 4.12.0-14-generic (root@Linux) (gcc version 7.1.0 (Ubuntu 7.1.0-13ubuntu1) ) #15~pm961+reset SMP Wed Sep 6 13:43:27 CST 2017 (Ubuntu 4.12.0-14.15~pm961+reset-generic 4.12.10) Sep 7 10:02:44 phs08 kernel: [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-4.12.0-14-generic root=UUID=f7ae652b-cbf6-48b8-bc6a-d3963957ab57 ro system running all day... from pm-suspend.log: Thu Sep 7 19:34:17 BST 2017: performing suspend Thu Sep 7 20:26:41 BST 2017: Awake. from kernel.log (nothing about any suspend operations prior to wakeup time, i.e. all kernel operations relating to suspend are logged on wakeup !) Sep 7 20:26:41 phs08 kernel: [34307.434357] PM: Syncing filesystems ... done. Sep 7 20:26:41 phs08 kernel: [34307.498356] PM: Preparing system for sleep (mem) ... Sep 7 20:26:41 phs08 kernel: [34311.224400] PM: resume of devices complete after 698.454 msecs Sep 7 20:26:41 phs08 kernel: [34311.224785] PM: Finishing wakeup ... At 20:28 I successfully saved a spreadsheet file to the nvme disk, that was open before the system was suspended (the file is timestamped with 20:28) then.... Sep 7 20:29:56 phs08 kernel: [34506.017034] nvme nvme0: controller is down; will reset: CSTS=0xffffffff, PCI_STATUS=0xffff Sep 7 20:29:56 phs08 kernel: [34506.052638] pci_raw_set_power_state: 5 callbacks suppressed Sep 7 20:29:56 phs08 kernel: [34506.052642] nvme 0000:01:00.0: Refused to change power state, currently in D3 Sep 7 20:29:56 phs08 kernel: [34506.052779] nvme nvme0: Removing after probe failure status: -19 etc. So the nvme disk apparently does not become inaccessible until 3 min after the system has woken up ! -- 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 [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
