Arch Linux

askm3

Member

Registered: 2018-11-16

Posts: 2

Arch suddenly reboots

Hi all, after installing and configuring powertop i have this strange issue:
when i leave my computer on and I don't utilize it for like 10-15 min, it automatically reboots.

Where I can find some relevant debug log of what is happening before the auto reboot?

last reboot command:

reboot   system boot  4.19.4-arch1-1-A Thu Dec  6 09:20   still running
reboot   system boot  4.19.4-arch1-1-A Thu Dec  6 08:59   still running
reboot   system boot  4.19.4-arch1-1-A Wed Dec  5 16:26 - 17:38  (01:11)
reboot   system boot  4.19.4-arch1-1-A Wed Dec  5 13:49 - 17:38  (03:48)
reboot   system boot  4.19.4-arch1-1-A Wed Dec  5 10:17 - 17:38  (07:21)
reboot   system boot  4.19.4-arch1-1-A Wed Dec  5 09:14 - 17:38  (08:23)
reboot   system boot  4.19.4-arch1-1-A Tue Dec  4 21:16 - 01:41  (04:24)
reboot   system boot  4.19.4-arch1-1-A Tue Dec  4 19:40 - 01:41  (06:01)
reboot   system boot  4.19.4-arch1-1-A Tue Dec  4 18:33 - 18:35  (00:02)
reboot   system boot  4.19.4-arch1-1-A Tue Dec  4 08:46 - 17:12  (08:25)
reboot   system boot  4.19.4-arch1-1-A Mon Dec  3 09:07 - 17:15  (08:08)

seth

Member

Registered: 2012-09-03

Posts: 8,964

Re: Arch suddenly reboots

Your journal.
How did you "configure" powertop? It's predominantly for measuring (though there's the autotune feature) and doesn't eg. provide idle events. Do you maybe run other PM tools as well?

askm3

Member

Registered: 2018-11-16

Posts: 2

Re: Arch suddenly reboots

I don't see any of relevant info on journalctl:

Dec 06 15:28:25 archme org.freedesktop.thumbnails.Thumbnailer1[860]: Registered thumbailer heif-thumbnailer -s %s %i %o
Dec 06 15:28:25 archme org.freedesktop.thumbnails.Thumbnailer1[860]: Registered thumbailer /usr/bin/gdk-pixbuf-thumbnailer -s %s %u %o
Dec 06 15:28:25 archme org.freedesktop.thumbnails.Thumbnailer1[860]: Registered thumbailer evince-thumbnailer -s %s %u %o
Dec 06 15:28:25 archme org.freedesktop.thumbnails.Thumbnailer1[860]: Registered thumbailer /usr/bin/gdk-pixbuf-thumbnailer -s %s %u %o
-- Reboot --
Dec 06 16:00:00 archme systemd[1014]: Listening on GnuPG cryptographic agent and passphrase cache (restricted).

initially i had installed (for mistake) tlp in conjunction with power top but then I uninstalled tlp

powertop is configured as wiki shows:

/etc/systemd/system/powertop.service

[Unit]
Description=Powertop tunings

[Service]
ExecStart=/usr/bin/powertop --auto-tune
RemainAfterExit=true

[Install]
WantedBy=multi-user.target

thanks for your reply

seth

Member

Registered: 2012-09-03

Posts: 8,964

Re: Arch suddenly reboots

The reboot is likely some bug triggered by some auto-tuned setting (c-state, usb autosuspend, etc.), run journalctl as root (sudo) or add your user to the wheel group to see the systems log, also consult https://wiki.archlinux.org/index.php/Journalctl