S3 sleep / suspend to ram on Ubuntu 18.04
ACPI is not x86 only, ARM can perfectly have it, and linux could implement it (since it's the OS responsibility), but, it looks like it didn't. I mean even without ACPI tables that obviously are not present yet in rockchip's BSPs, it would be doable to implement ACPI Suspend To RAM and Hibernate sleep states - with the help of uboot, whose devs again probably deemed this functionality "gay".
I suspect, that the state PBP is put into, when the lid is closed is S none, meaning it's not a sleep state at all, since by the definition in all the S states, processor doesn't run. that means it should be waken up. without the firmware, understaning it's STR (meaning no SDRAM init needed and the different path of the initialization, handoff to the OS etc are needed)  the normal sleep states aren't possible then. only some lame hacks, varying from machine to machine instead. supporting this unmanageable mess of millions ways of doing the same thing is hard, so here the situation. when a suppossed to be sleep is frying your laptop. this is the price of neglecting and dismissive attitude towards ACPI from "some" circles. it's basically about "freedom". of ACPI. and as a result of the sleep states and battery charge. Smile

Messages In This Thread
RE: S3 sleep / suspend to ram on Ubuntu 18.04 - by z4v4l - 01-16-2020, 05:40 PM

Possibly Related Threads…
Thread Author Replies Views Last Post
  How to make manjaro sleep or hibernate? KDE? regretfulpineuser 0 205 06-20-2022, 12:56 AM
Last Post: regretfulpineuser
  Working suspend on Manjaro brzegorz 3 2,465 12-03-2021, 01:39 PM
Last Post: rik-shaw
  reset sound after suspend to memory (deep sleep) Der Geist der Maschine 16 9,794 10-18-2021, 07:31 PM
Last Post: Syonyk
Question Help: Pinebook Pro will not enter sleep [Manjaro 20.04] EverythingIsInput 49 44,113 05-07-2021, 06:21 AM
Last Post: line72
  After update in Ubuntu bionic mate system crashed Wawe 2 1,849 04-18-2021, 04:52 AM
Last Post: Wawe
  Anyone can get deep sleep fully works with NVME rootfs? plumlis 0 1,331 01-11-2021, 09:58 AM
Last Post: plumlis
  Ubuntu Installation on PBP narinderpal10 5 3,510 12-18-2020, 12:22 PM
Last Post: narinderpal10
  Ubuntu MATE 18.04 Can't boot after update hankg 2 2,018 12-15-2020, 01:53 AM
Last Post: BryanF
  Installing Ubuntu 20.04 (Focal) with BSP uBoot with deep sleep and sound Syonyk 17 12,460 11-19-2020, 03:16 AM
Last Post: FeMike
  Pinebook pro crashing when put to sleep?? [Manjaro] edward 13 8,792 11-17-2020, 07:17 AM
Last Post: ab1jx

Forum Jump:

Users browsing this thread: 1 Guest(s)