Looks like it was actually longer than 10 seconds as I opened the lid 1 sec after the power light began to pulse.
Fri 17 May 2019 09:48:20 AM CEST - state: open Fri 17 May 2019 09:48:21 AM CEST - state: open Fri 17 May 2019 09:48:22 AM CEST - state: open Fri 17 May 2019 09:48:23 AM CEST - state: open Fri 17 May 2019 09:48:24 AM CEST - state: open Fri 17 May 2019 09:48:25 AM CEST - state: closed Fri 17 May 2019 09:48:26 AM CEST - state: closed Fri 17 May 2019 09:48:27 AM CEST - state: closed Fri 17 May 2019 09:48:28 AM CEST - state: closed Fri 17 May 2019 09:48:29 AM CEST - state: closed Fri 17 May 2019 09:48:30 AM CEST - state: closed Fri 17 May 2019 09:48:31 AM CEST - state: closed Fri 17 May 2019 09:48:33 AM CEST - state: closed Fri 17 May 2019 09:48:34 AM CEST - state: closed Fri 17 May 2019 09:48:35 AM CEST - state: closed Fri 17 May 2019 09:48:36 AM CEST - state: closed Fri 17 May 2019 09:48:37 AM CEST - state: closed Fri 17 May 2019 09:48:38 AM CEST - state: closed Fri 17 May 2019 09:48:39 AM CEST - state: closed Fri 17 May 2019 09:48:40 AM CEST - state: closed Fri 17 May 2019 09:48:41 AM CEST - state: closed Fri 17 May 2019 09:48:42 AM CEST - state: closed Fri 17 May 2019 09:48:43 AM CEST - state: closed Fri 17 May 2019 09:48:44 AM CEST - state: closed Fri 17 May 2019 09:48:45 AM CEST - state: closed Fri 17 May 2019 09:48:46 AM CEST - state: closed Fri 17 May 2019 09:48:47 AM CEST - state: closed Fri 17 May 2019 09:48:48 AM CEST - state: closed Fri 17 May 2019 09:48:49 AM CEST - state: closed Fri 17 May 2019 09:48:50 AM CEST - state: closed Fri 17 May 2019 09:48:51 AM CEST - state: closed Fri 17 May 2019 09:48:52 AM CEST - state: closed Fri 17 May 2019 09:48:53 AM CEST - state: closed Fri 17 May 2019 09:48:54 AM CEST - state: closed Fri 17 May 2019 09:48:55 AM CEST - state: closed Fri 17 May 2019 09:49:00 AM CEST - state: open Fri 17 May 2019 09:49:02 AM CEST - state: open Fri 17 May 2019 09:49:03 AM CEST - state: open ^C On Fri, May 17, 2019 at 9:52 AM Chris Gregan <chris.gre...@canonical.com> wrote: > This is interesting. > > `echo mem > /sys/power/state` > This command was instant S3. The screen went black and the power light > immediately began to blink. > > However...for lid switch the power light takes around 10 seconds to begin > to pulse, but the state immediately switches. > > Fri 17 May 2019 09:48:22 AM CEST - state: open > Fri 17 May 2019 09:48:23 AM CEST - state: open > Fri 17 May 2019 09:48:24 AM CEST - state: open > Fri 17 May 2019 09:48:25 AM CEST - state: closed > Fri 17 May 2019 09:48:26 AM CEST - state: closed > Fri 17 May 2019 09:48:27 AM CEST - state: closed > > It seems although detection if immediate, it takes 10 seconds to process? > > On Thu, May 16, 2019 at 6:05 PM Andrea Righi <andrea.ri...@canonical.com> > wrote: > >> Hi Chris, just to make sure I understand (from a kernel perspective), >> can you confirm that `echo mem > /sys/power/state` is also fast at >> reaching the suspend state? >> >> In that case it would be interesting to check if there's a delay at >> detecting the state of the lid switch. For this, could you run the >> following command in a bash session: >> >> $ while :; do echo `date` - `cat /proc/acpi/button/lid/LID0/state`; >> sleep 1; done >> >> Close the lid, re-open it and you should notice something like this: >> >> Thu May 16 17:50:42 CEST 2019 - state: open >> Thu May 16 17:50:43 CEST 2019 - state: open >> Thu May 16 17:50:44 CEST 2019 - state: open >> Thu May 16 17:50:45 CEST 2019 - state: closed >> Thu May 16 17:50:46 CEST 2019 - state: closed >> Thu May 16 17:50:47 CEST 2019 - state: closed >> Thu May 16 17:50:48 CEST 2019 - state: open >> Thu May 16 17:50:49 CEST 2019 - state: open >> Thu May 16 17:50:50 CEST 2019 - state: open >> ^C >> >> Note that I have set the "lid close action" to do nothing, in this way >> we can better isolate the problem. Thanks. >> >> -- >> You received this bug notification because you are subscribed to the bug >> report. >> https://bugs.launchpad.net/bugs/1829399 >> >> Title: >> Lid switch triggered suspend takes much longer than UI triggered >> suspend >> >> To manage notifications about this bug go to: >> >> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1829399/+subscriptions >> > > > -- > > Chris Gregan > Engineering Manager > Solutions QA/Techops > cgre...@irc.canonical.com > -- Chris Gregan Engineering Manager Solutions QA/Techops cgre...@irc.canonical.com -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1829399 Title: Lid switch triggered suspend takes much longer than UI triggered suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1829399/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs