01-19-2020, 06:45 AM
(01-18-2020, 10:10 PM)Arwen Wrote: @mamboman777, perfect. I added the active power states, (PS 0-2), and the APSTE info to this device's Wiki entry.
If you have the part number / hardware ID, that would be helpful, (in case someone want to buy that same model).
And yes, I agree that the Samsung model at 9 watts maximum is too high for our Pinebook Pros.
I was wrong about the power states for the Samsung 970 EVO. Here's what was reported:
0 - 6.2
1 - 4.3
2 - 2.1
3 - .04
4 - .005
Still, the intel is 2w less at the top end.
Product Code for the INtel 660p 1tb is SSDPEKNW010T8X1
I've been doing some additional reading....I'm guessing this drive does not support APST. When I run sudo nvme get-feature -f 0x0c -H /dev/nvme0 as instructed by the wiki I get APST: Disabled. That either means the controller on the SSD doesn't have this implimented or the Kernel doesn't support the implementation. That being said, I think that means the Kernel manages the reported power states and switches between them as it sees fit instead of letting the drive Autonomously Transition the Power State (APST). All things being said, the battery life is fine even without APSt. Currently reporting 5:21 remaining with %62 charge remaining. That means to me, the drive is able to get to power state 3-4. Here's a more detailed review of the ssd power states...this might be a good site to shop for SSD's: https://www.anandtech.com/show/13078/the...-arrives/8