11-11-2019, 07:26 AM
(11-09-2019, 06:16 PM)Luke Wrote: Second of all, suspend is always a pain on mainline; what is your gut feeling re. getting suspend to work for the PBP?
suspend-to-idle works and does save a little power. Using the built in battery monitor (which happily takes quite a long time to observe changes so I can peek just after a wake up) then the system is consuming 0.5A whilst suspended to idle versus somewhere between 0.7A and 0.8A with just the backlight disabled. This is enough to be useful to conserve battery life in long meetings but I wouldn't want to leave it sleeping in my bag.
So far I have not been able to wake the machine after suspending-to-ram. Thus enabling suspend to idle (echo s2idle | sudo tee /sys/power/mem_sleep or the tmpfiles.d equivalent) is a good idea for the time being since that way you can leave all the suspend machinary in your desktop environment in the default settings.