Is there a way to read the firmware version of the modem or is it printed on boot messages? Which version has the wake-up feature?
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Hello, did I understood well that your L5 consumes 7%/hour on suspend and 9%/hour on normal mode ?
I am happy but a bit surprised : I thought STR would decrease the consumption by twice (so something like 4%/hour). Maybe there is still a room for improvement, anyway happy to see that it is available.
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I agree with you that STR need more power saving to Librem 5, as far i know the STR benefit on power saving are 99% so i guess that the RAM of the L5 it still eating to much power.
I believe on Purism that they will do the best to get the best power saving for L5.
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Yes. I was surprised as well and I’d be more than happy to hear from one of the Purism’s devs that I did something wrong.
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If you didn’t do anything wrong, I wouldn’t sweat the numbers too much. This process is still pretty new and achieving efficiency in any process takes time.
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I just tested suspend on my L5 using echo mem | sudo tee /sys/power/state with the kernel being 5.16.0-1-librem5.
- It does suspend.
- Now we dial in.
- First ring and L5 is waked up showing the terminal we executed suspend.
- Then it looses the modem or the connection until the 2nd ring.
- 2nd to 3rd ring it has reconnected to 4G and calls kicks in to answer the phone. Maybe by now we have reached the 4th ring. Stays in 4G since I have enabled VoLTE.
But the interface does not provide the means to auto suspend. Will 5.17 be available soon? Will it give the possibility to enable the auto suspend?
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If no.4 above did not happen, maybe Calls would kick-in starting from the 2nd ring.
The latest update includes the possibility to enable suspend in the power settings. The choices given for after how much time to suspend, have a minimum 15 minutes and the default choice is 20 minutes.
Isn’t this too much? If L5 has its screen locked and no-one is logged in through ssh or serial shouldn’t the minimum be a couple of minutes?
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@antonis I don’t think that suspend is completely ready for general usage yet, maybe that’s why minimum suspend time has not been tweaked yet to something more sensible.
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Well, there are still tests to be made and adding the components in userspace so that enabling/disabling is basically pressing a button from GNOME Settings
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Thank you for clarifying.
The Automatic Suspend option shows a disclaimer that it’s still experimental, and gives you two options to enable or not: (1) on battery power and (2) when plugged in.
Suspend on battery power can be set to 15, 20, 25, 30, or 45 minutes; 1 hour; 80, 90, or 100 minutes; or 2 hours. Same settings for when plugged in.
BTW, another nice addition to the settings: Show Battery Percentage. When enabled, it adds the percentage beside the icon in the notifications area. (But not on lock screen.)
EDIT: Note that the slowly-blinking blue LED is activated when suspend kicks in. And it stops blinking after a few minutes, apparently.
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there is an issue to track that:
and:
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Cool wallpaper.
I’m on kernel 5.16.0-1 and did twice a suspend with:
apt list --installed 2>/dev/null | grep '^linux-image-.*-librem5'
linux-image-5.16.0-1-librem5/byzantium,now 5.16.11pureos2 arm64 [installed,automatic]
echo mem | sudo tee /sys/power/state
Result:
- display goes off, SSH session frozen (which shows the suspend)
- phone does not react on incoming call
- display comes back on short press of power button
- no further reaction on display nor SSH, only long press to reboot helps
UPDATE
I did two tests with automatic suspend after 15 minutes; result:
- the device comes back with short press on power button and responds on input from touchscreen
- an incoming call the
Callapp, but accepting the call is not possible (no reaction)
It normal that ssh go frozen because the wlan-card it under deep sleep too. Purism it trying to keep alive the wlan card under suspended but seem that redpine card it lacking for a special feature to fully turn ON.
To quick fix this you maybe need to buy a newer batch of modem from Purism store, but i don’t guarantee you it work 100% as my case mi modem work really good even under auto suspend from phosh-setting.
This issue does not happen with me but it could be happen because STR still on testing mode.
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In case you’re right, what’s the solution or end result?
I guess that Purism will perform a hack to enable the WLAN under Redpine card, to get data and notifications all the time under suspended mode but it will consume a little more battery than expected.
Also i guess that Purism will sale an enhanced wlan-card module to fully fix all the issues related to Redpine to get a better L5 funtions.
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I like that on auto suspend-to-ram the Librem 5 it notifies with a blue light that the device will quick enter to suspend-to-ram, it also notifies with a blue light that it is waking up from suspend-to-ram, if the blue light does not turn ON when wake up from suspend-to-ram it means the system crashed then it need a long press to power botton to turn off the machine.
At the moment there is only to 15 minutes at minimun to enter to suspend-to-ram, but i think that 5 minutes to go for suspend-to-ram will help to save more battery.
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