In that case it's enabled again:
$ dmesg | grep -i nvme [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.10.0-24-generic.efi.signed root=UUID=365f1a9c-9598-4ad5-a387-d02f771767a1 ro quiet splash nvme_core.default_ps_max_latency_us=0 nvme_core.dyndbg=+p vt.handoff=7 [ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.10.0-24-generic.efi.signed root=UUID=365f1a9c-9598-4ad5-a387-d02f771767a1 ro quiet splash nvme_core.default_ps_max_latency_us=0 nvme_core.dyndbg=+p vt.handoff=7 [ 2.372993] nvme nvme0: pci function 0000:04:00.0 [ 2.587597] nvme0n1: p1 p2 [ 3.343336] EXT4-fs (nvme0n1p2): mounted filesystem with ordered data mode. Opts: (null) [ 3.548268] EXT4-fs (nvme0n1p2): re-mounted. Opts: errors=remount-ro
sudo nvme get-feature -f 0x0c -H /dev/nvme0 get-feature:0xc (Autonomous Power State Transition), Current value:0x000001 Autonomous Power State Transition Enable (APSTE): Enabled
In that case it's enabled again:
$ dmesg | grep -i nvme /boot/vmlinuz- 4.10.0- 24-generic. efi.signed root=UUID= 365f1a9c- 9598-4ad5- a387-d02f771767 a1 ro quiet splash nvme_core. default_ ps_max_ latency_ us=0 nvme_core.dyndbg=+p vt.handoff=7 /boot/vmlinuz- 4.10.0- 24-generic. efi.signed root=UUID= 365f1a9c- 9598-4ad5- a387-d02f771767 a1 ro quiet splash nvme_core. default_ ps_max_ latency_ us=0 nvme_core.dyndbg=+p vt.handoff=7
[ 0.000000] Command line: BOOT_IMAGE=
[ 0.000000] Kernel command line: BOOT_IMAGE=
[ 2.372993] nvme nvme0: pci function 0000:04:00.0
[ 2.587597] nvme0n1: p1 p2
[ 3.343336] EXT4-fs (nvme0n1p2): mounted filesystem with ordered data mode. Opts: (null)
[ 3.548268] EXT4-fs (nvme0n1p2): re-mounted. Opts: errors=remount-ro
sudo nvme get-feature -f 0x0c -H /dev/nvme0
get-feature:0xc (Autonomous Power State Transition), Current value:0x000001
Autonomous Power State Transition Enable (APSTE): Enabled