similar thing happens with my lenovo thinkpad x1 carbon gen5. the time
it takes for suspend is excrutiationgly long. it used to be a couple of
seconds, at most, now the wait for the red led on top of "i" in ThinkPad
logo seems to be taking for ages to start blinking. the output of the
loop (suggested by @arighi above)
while true ; do echo $(date) $(cat /proc/acpi/button/lid/LID/state) ;
done
gives the following:
Thu 11 Jun 2020 09:36:44 AM CEST state: open
Thu 11 Jun 2020 09:36:45 AM CEST state: open
Thu 11 Jun 2020 09:36:46 AM CEST state: open <-- close lid
Thu 11 Jun 2020 09:36:47 AM CEST state: open
Thu 11 Jun 2020 09:36:48 AM CEST state: open
Thu 11 Jun 2020 09:36:49 AM CEST state: closed
Thu 11 Jun 2020 09:36:50 AM CEST state: closed
Thu 11 Jun 2020 09:36:51 AM CEST state: closed
Thu 11 Jun 2020 09:36:52 AM CEST state: closed
Thu 11 Jun 2020 09:36:53 AM CEST state: closed
Thu 11 Jun 2020 09:36:54 AM CEST state: closed
Thu 11 Jun 2020 09:36:55 AM CEST state: closed
Thu 11 Jun 2020 09:36:56 AM CEST state: closed
Thu 11 Jun 2020 09:36:57 AM CEST state: closed
Thu 11 Jun 2020 09:36:58 AM CEST state: closed
Thu 11 Jun 2020 09:36:59 AM CEST state: closed
Thu 11 Jun 2020 09:37:00 AM CEST state: closed
Thu 11 Jun 2020 09:37:01 AM CEST state: closed
Thu 11 Jun 2020 09:37:02 AM CEST state: closed
Thu 11 Jun 2020 09:37:03 AM CEST state: closed
Thu 11 Jun 2020 09:37:04 AM CEST state: closed
Thu 11 Jun 2020 09:37:05 AM CEST state: closed
Thu 11 Jun 2020 09:37:06 AM CEST state: closed
Thu 11 Jun 2020 09:37:07 AM CEST state: closed
Thu 11 Jun 2020 09:37:08 AM CEST state: closed
Thu 11 Jun 2020 09:37:09 AM CEST state: closed
Thu 11 Jun 2020 09:37:10 AM CEST state: closed
Thu 11 Jun 2020 09:37:11 AM CEST state: closed
Thu 11 Jun 2020 09:37:12 AM CEST state: closed
Thu 11 Jun 2020 09:37:13 AM CEST state: closed
Thu 11 Jun 2020 09:37:14 AM CEST state: closed
Thu 11 Jun 2020 09:37:15 AM CEST state: closed
Thu 11 Jun 2020 09:37:16 AM CEST state: closed
Thu 11 Jun 2020 09:37:17 AM CEST state: closed
Thu 11 Jun 2020 09:37:18 AM CEST state: closed
19 <-- power led starts blinking
20
21
22
23
24
25
26
27
28 <-- open lid
29
Thu 11 Jun 2020 09:37:30 AM CEST state: open
Thu 11 Jun 2020 09:37:31 AM CEST state: open
Thu 11 Jun 2020 09:37:35 AM CEST state: open <-- ctrl-c while-loop
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
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.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1829399/+subscriptions
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