[Bug 1829399] Re: Lid switch triggered suspend takes much longer than UI triggered suspend

Does "echo mem | sudo tee /sys/power/state" suspend the system
immediately?

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https://bugs.launchpad.net/bugs/1829399

Title:
Lid switch triggered suspend takes much longer than UI triggered
suspend

Status in linux package in Ubuntu:
Invalid
Status in systemd package in Ubuntu:
Confirmed

Bug description:
IBM T460
5.0.0-13-generic #14-Ubuntu SMP Mon Apr 15 14:59:14 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux


When triggering a suspend even from the lid switch of my Lenovo T460 it takes 30 seconds to reach suspend state. Several others with different models of Lenovo laptops have also reproduced this issue.

It seems this is isolated to the lid switch as UI triggered suspend
(alt+power icon) is far faster.

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