Re:Ubuntu Linux snuck into high-end Dell laptops
by The_Colonel on Sunday October 22, 2023 @04:14PM
(#37978682)
These old ones still had a proper S3 sleep support. The new Dells are on the "modern standby" crap pushed by Microsoft and deep sleep doesn't work on any OS. Somehow we managed to regress, it's no longer safe to just close your laptop and put it to your backpack. (few times I did that with my Precision 5550, it got so hot I was afraid the battery will explode)
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Re:Ubuntu Linux snuck into high-end Dell laptops
by csdvrx on Sunday October 22, 2023 @04:27PM
(#37978781)
> the "modern standby" crap pushed by Microsoft and deep sleep doesn't work on any OS.
I disagree: technically, it can be made to work, at least with some effort.
On my Lenovo X1 fold, I do get 0.5%/h of sleep, cf the slope of the sleepstudy curve on Windows https://csdvrx.github.io/X1_Fold_(20RL_20RK)_Optimization/pa... ; the root cause of most of my problems were the Intel drivers, more details on https://csdvrx.github.io/
_Optimization/pasted_image001.png){kind=link}
Just turning off wireless with a powershell script before sleep helps a lot, on Linux of course you have more leeway with systemd-suspend hooks.
> my Precision 5550, it got so hot I was afraid the battery will explode
We've got very similar experiences with Dell