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Re: Laptop resumes each 1h13 after suspend-to-ram



On 12/09/2025 03:55, Max Nikulin wrote:
On 11/09/2025 22:30, Eugen Dedu wrote:

I have a weird problem with suspend-to-ram with my Dell Precision 3591 laptop, which awakes alone/itself, without touching it
[...]
Thu 11 Sep 04:42:30 CEST 2025
Thu 11 Sep 05:55:58 CEST 2025
Thu 11 Sep 07:09:26 CEST 2025

Have you tried to read logs to see if some task is started immediately after resume?

     sudo journalctl --since '2025-09-11 05:50'

It is very long, I put it at https://dedu.fr/log.txt.

Can it be caused by any timer?

     systemctl list-timers

root@snoopy:~# systemctl list-timers --all
NEXT LEFT LAST PASSED UNIT ACTIVATES Fri 2025-09-12 14:09:00 CEST 5min Fri 2025-09-12 13:39:14 CEST 24min ago phpsessionclean.timer phpsessionclean.service Fri 2025-09-12 14:30:21 CEST 27min Fri 2025-09-12 13:35:45 CEST 27min ago anacron.timer anacron.service Fri 2025-09-12 14:59:24 CEST 56min Fri 2025-09-12 13:54:39 CEST 8min ago fwupd-refresh.timer fwupd-refresh.service Sat 2025-09-13 00:00:00 CEST 9h Fri 2025-09-12 00:19:13 CEST 3h 30min ago dpkg-db-backup.timer dpkg-db-backup.service Sat 2025-09-13 00:41:19 CEST 10h Fri 2025-09-12 00:19:13 CEST 3h 30min ago logrotate.timer logrotate.service Sat 2025-09-13 02:25:58 CEST 12h Fri 2025-09-12 01:32:41 CEST 3h 30min ago man-db.timer man-db.service Sat 2025-09-13 05:46:31 CEST 15h Fri 2025-09-12 07:39:58 CEST 3h 20min ago apt-daily.timer apt-daily.service Sat 2025-09-13 06:14:14 CEST 16h Fri 2025-09-12 07:26:53 CEST 3h 29min ago apt-daily-upgrade.timer apt-daily-upgrade.service Sat 2025-09-13 13:30:46 CEST 23h Fri 2025-09-12 13:01:52 CEST 32min ago systemd-tmpfiles-clean.timer systemd-tmpfiles-clean.service Sun 2025-09-14 03:10:37 CEST 1 day 13h Sun 2025-09-07 03:15:34 CEST 1 day 6h ago e2scrub_all.timer e2scrub_all.service Mon 2025-09-15 00:29:04 CEST 2 days Mon 2025-09-08 04:45:31 CEST - fstrim.timer fstrim.service Wed 2025-10-01 00:01:30 CEST 2 weeks 4 days Mon 2025-09-01 02:22:27 CEST 2 days ago wtmpdb-rotate.timer wtmpdb-rotate.service

12 timers listed.

  [a few minutes passed]

root@snoopy:~# systemctl list-timers --all
NEXT LEFT LAST PASSED UNIT ACTIVATES Fri 2025-09-12 14:09:00 CEST 1min 50s Fri 2025-09-12 13:39:14 CEST 27min ago phpsessionclean.timer phpsessionclean.service Fri 2025-09-12 14:30:21 CEST 23min Fri 2025-09-12 13:35:45 CEST 31min ago anacron.timer anacron.service Fri 2025-09-12 14:59:24 CEST 52min Fri 2025-09-12 13:54:39 CEST 12min ago fwupd-refresh.timer fwupd-refresh.service Sat 2025-09-13 00:00:00 CEST 9h Fri 2025-09-12 00:19:13 CEST 3h 33min ago dpkg-db-backup.timer dpkg-db-backup.service Sat 2025-09-13 00:41:19 CEST 10h Fri 2025-09-12 00:19:13 CEST 3h 33min ago logrotate.timer logrotate.service Sat 2025-09-13 02:25:58 CEST 12h Fri 2025-09-12 01:32:41 CEST 3h 33min ago man-db.timer man-db.service Sat 2025-09-13 05:46:31 CEST 15h Fri 2025-09-12 07:39:58 CEST 3h 24min ago apt-daily.timer apt-daily.service Sat 2025-09-13 06:14:14 CEST 16h Fri 2025-09-12 07:26:53 CEST 3h 33min ago apt-daily-upgrade.timer apt-daily-upgrade.service Sat 2025-09-13 13:30:46 CEST 23h Fri 2025-09-12 13:01:52 CEST 36min ago systemd-tmpfiles-clean.timer systemd-tmpfiles-clean.service Sun 2025-09-14 03:10:37 CEST 1 day 13h Sun 2025-09-07 03:15:34 CEST 1 day 6h ago e2scrub_all.timer e2scrub_all.service Mon 2025-09-15 00:29:04 CEST 2 days Mon 2025-09-08 04:45:31 CEST - fstrim.timer fstrim.service Wed 2025-10-01 00:01:30 CEST 2 weeks 4 days Mon 2025-09-01 02:22:27 CEST 2 days ago wtmpdb-rotate.timer wtmpdb-rotate.service

Among the three first timers (scheduled for today), the sum left+passed is 29 min for PHP, 54 min for anacron, and 1h04 for fwupd. The interval in my case is 1h13. I will try however to disable fwupd.


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