Suspend battery drain? S3 vs s0ix [Librem 14 / Coreboot / Intel ME]

[prezretpolistajete]

Does the Librem 14 with the Intel ME disabled drain battery very quickly on suspend?

I was reading about the Star Labs Starbook, and they apparently have implemented S3 suspend, so that there is minimal battery loss when in suspend, which is a custom workaround to the default s0ix suspend that ships with modern intel processors. With Intel ME disabled, s0ix apparently has dramatic battery drain on suspend. Coming back to a dead laptop after not using it can be inconvenient.

Does the Librem 14 use S3 or s0ix?

[Honza]

There were reports of L13 draining too much power due to specific RAM module. Around 40% over night.

Battery drain while suspended

My Librem 13v2 with PureOS and Coreboot 4.7-Purism-4 is draining too much battery while suspended. Over night the battery went down from 100% to 60%. I didn’t find any activity in logs. Mar 23 23:19:51 librem systemd-sleep[29161]: Suspending system... Mar 23 23:19:51 librem kernel: [34589.635825] PM: suspend entry (deep) Mar 24 06:33:05 librem Tor[968]: Your system clock just jumped 25995 seconds forward; assuming established circuits no longer work. Mar 24 06:33:05 librem kernel: [34589.63582…

I tried the RAM in new L14 and it also drains a lot. But with other RAM modules it’s just few percent a day. Still I could imagine it can be better.

[MrChromebox]

@prezretpolistajete

Does the Librem 14 use S3 or s0ix?

S3. Si0x cannot be used with a disabled ME as it depends on the ME.