Talk:Pinebook Pro Hardware Accessory Compatibility - Revision history

HitsuMaruku at 05:11, 23 December 2020

2020-12-23T05:11:19Z

← Older revision		Revision as of 05:11, 23 December 2020
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	--[[User:HitsuMaruku\|HitsuMaruku]] ([[User talk:HitsuMaruku\|talk]]) 05:00, 23 December 2020 (UTC)		APST appears to be enabled, but after idling for a while at PS 2, the NVMe has not changed. Leaving this off the table info, since I don't understand it well enough to toy with it.
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			<div><strong>$ sudo nvme get-feature /dev/nvme0 -f 0x0c</strong></div>
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			<pre>
			get-feature:0xc (Autonomous Power State Transition), Current value:0x000001
			</pre>
			</div></div>
			--[[User:HitsuMaruku\|HitsuMaruku]] ([[User talk:HitsuMaruku\|talk]]) 05:10, 23 December 2020 (UTC)

HitsuMaruku at 05:00, 23 December 2020

2020-12-23T05:00:51Z

← Older revision		Revision as of 05:00, 23 December 2020
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	* Run 'sudo hdparm -t /dev/nvme0' continuously for 5 minutes.		* Run 'sudo hdparm -t /dev/nvme0' continuously for 5 minutes.
	The test passes if your PBP does not crash (red-green blinking power led). I will write a script later to automate the test, but for now these instructions should suffice. If you think this would work better in a forum thread, let me know and I'll start one. I hope to see some of your findings! --[[User:Natrox\|Natrox]] ([[User talk:Natrox\|talk]]) 03:58, 3 February 2020 (UTC)		The test passes if your PBP does not crash (red-green blinking power led). I will write a script later to automate the test, but for now these instructions should suffice. If you think this would work better in a forum thread, let me know and I'll start one. I hope to see some of your findings! --[[User:Natrox\|Natrox]] ([[User talk:Natrox\|talk]]) 03:58, 3 February 2020 (UTC)

			<h3>Intel 660p</h3>
			Got an Intel 660p 2TB. Added power states to the table. Lowest active state is just above the 2.5W recommendation.
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			<div><strong>$ sudo nvme id-ctrl /dev/nvme0</strong></div>
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			<pre>
			ps 0 : mp:5.50W operational enlat:0 exlat:0 rrt:0 rrl:0
			rwt:0 rwl:0 idle_power:- active_power:-
			ps 1 : mp:3.60W operational enlat:0 exlat:0 rrt:1 rrl:1
			rwt:1 rwl:1 idle_power:- active_power:-
			ps 2 : mp:2.60W operational enlat:0 exlat:0 rrt:2 rrl:2
			rwt:2 rwl:2 idle_power:- active_power:-
			ps 3 : mp:0.0300W non-operational enlat:5000 exlat:5000 rrt:3 rrl:3
			rwt:3 rwl:3 idle_power:- active_power:-
			ps 4 : mp:0.0040W non-operational enlat:5000 exlat:9000 rrt:4 rrl:4
			rwt:4 rwl:4 idle_power:- active_power:-
			</pre>
			</div></div>

			Saving power state to NVMe firmware is not supported. Attempting to do so will result in an error, and will not execute the change. Use without <code>-s</code> flag.
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			<div><strong>$ sudo nvme set-feature /dev/nvme0 -f 2 -v 2 -s</strong></div>
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			<pre>
			NVMe status: FEATURE_NOT_SAVEABLE: The Feature Identifier specified does not support a saveable value(0x10d)
			</pre>
			</div></div>

			--[[User:HitsuMaruku\|HitsuMaruku]] ([[User talk:HitsuMaruku\|talk]]) 05:00, 23 December 2020 (UTC)


			== NVMe SSD Power State Script ==

			<h3>systemd</h3>
			Made a systemd service to handle setting the power state for reboot and (sleep) resume. These appear to work with my Intel 660p 2TB, with limited testing; they may or may not work with other models.
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			<div><strong>/usr/local/bin/nvme-power-limit.sh</strong></div>
			<div>Make this file executable.</div>
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			<pre>
			nvme set-feature /dev/nvme0 -f 2 -v 2
			</pre>
			</div></div>
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			<div><strong>/etc/systemd/system/nvme-power-limit.service</strong></div>
			<div>Enable this service to run on boot.</div>
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			<pre>
			[Unit]
			Description=NVMe Power State Limiter
			After=suspend.target

			[Service]
			User=root
			Type=oneshot
			ExecStart=/bin/bash /usr/local/bin/nvme-power-limit.sh
			TimeoutSec=0
			StandardOutput=syslog

			[Install]
			WantedBy=multi-user.target
			WantedBy=suspend.target
			</pre>
			</div></div>

			--[[User:HitsuMaruku\|HitsuMaruku]] ([[User talk:HitsuMaruku\|talk]]) 05:00, 23 December 2020 (UTC)

Fxc: headline added

2020-08-21T07:34:33Z

headline added

← Older revision		Revision as of 07:34, 21 August 2020
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			== NVMe SSD power testing ==

	NVME SSD power testing:		NVME SSD power testing:
	I'd like to find out what the maximum sustained wattage for NVME drives is. 2.5W has been quoted as being safe, but I've tested 2.7W extensively without issues. Please try the following test if your power state is over 2.7W:		I'd like to find out what the maximum sustained wattage for NVME drives is. 2.5W has been quoted as being safe, but I've tested 2.7W extensively without issues. Please try the following test if your power state is over 2.7W:
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	* Apply a sustained CPU load on all cores but one.		* Apply a sustained CPU load on all cores but one.
	* Run 'sudo hdparm -t /dev/nvme0' continuously for 5 minutes.		* Run 'sudo hdparm -t /dev/nvme0' continuously for 5 minutes.
	The test passes if your PBP does not crash (red-green blinking power led). I will write a script later to automate the test, but for now these instructions should suffice. If you think this would work better in a forum thread, let me know and I'll start one. I hope to see some of your findings!		The test passes if your PBP does not crash (red-green blinking power led). I will write a script later to automate the test, but for now these instructions should suffice. If you think this would work better in a forum thread, let me know and I'll start one. I hope to see some of your findings! --[[User:Natrox\|Natrox]] ([[User talk:Natrox\|talk]]) 03:58, 3 February 2020 (UTC)
	--[[User:Natrox\|Natrox]] ([[User talk:Natrox\|talk]]) 03:58, 3 February 2020 (UTC)

Natrox: Created page with "NVME SSD power testing: I'd like to find out what the maximum sustained wattage for NVME drives is. 2.5W has been quoted as being safe, but I've tested 2.7W extensively withou..."

2020-02-03T03:58:41Z

Created page with "NVME SSD power testing: I'd like to find out what the maximum sustained wattage for NVME drives is. 2.5W has been quoted as being safe, but I've tested 2.7W extensively withou..."

New page

NVME SSD power testing:
I'd like to find out what the maximum sustained wattage for NVME drives is. 2.5W has been quoted as being safe, but I've tested 2.7W extensively without issues. Please try the following test if your power state is over 2.7W:
* Run off battery.
* Set your brightness level to maximum.
* Apply a sustained CPU load on all cores but one.
* Run 'sudo hdparm -t /dev/nvme0' continuously for 5 minutes.
The test passes if your PBP does not crash (red-green blinking power led). I will write a script later to automate the test, but for now these instructions should suffice. If you think this would work better in a forum thread, let me know and I'll start one. I hope to see some of your findings!
--[[User:Natrox|Natrox]] ([[User talk:Natrox|talk]]) 03:58, 3 February 2020 (UTC)