Re: s2idle on kdell xps 9730 does go to sleep but laptop is warm

Theodore Ts'o
2025-05-31T23:16:41Z

On Sat, May 31, 2025 at 02:26:32PM -0700, Marc MERLIN wrote:
> This is still a problem. Is there more info I can provide? For now it's
> bad enough that I can't have the battery be in S3 sleep for 24H without
> the batteries running out :-/

I believe what is going on is that on more modern systems, it relies
on the OS's drivers to power done various peripherals (e.g., graphics,
SSD's, etc.) and this is no longer being done by the low-level
firmware. With Linux the CPU is put to sleep, but there's a lot more
on a modern mainboard than just the CPU....

My solution, two tears ago, was to give up on my Dell XPS 13, and I
switched to a M2 MacBook Air, and I run (arm64) Linux in a Parallels
VM.

Sigh....

- Ted