Debian User Forums

Dear All,

my brother's Debian 11 is having an annoying issue: it looks like every time he logs into the session (XFCE, lightDM) and opens Firefox or Zoom the computer reboots mysteriously; usually it happens within 3 or 4 time in a row and then the session becomes stable.

Based on my knowledge I couldn't fin any clear insight, watching the logs (in attachment) I see when the computer is restarting but there is not any clear error, kern panic or segfault comment, it is really clueless for me; eventually I have been starting to think it may be some ram bank failure.

Any help is really appreciated, thanks!

D.

After a quick scan through the syslog.txt, I see eight of these, which look suspicious:

Sep 16 17:03:54 minitower systemd[1]: Started Unattended Upgrades Shutdown.

Hi thanks for the catch!

Actually we installed the unattended-upgrade package... May it be the cause?

I am going to uninstall it and check what is going to happen!

We removed almost all the USB extra devices however it looks like the situation is getting worst. I have started thinking it may be an issue with the power unit and I asked him to use a Debian Live and check if the issue happens the same.

What is the output of this command?

About unattended-upgrades:

Check the configuration file. I have enabled necessary reboots after upgrades on my Raspberry Pi 1.

Verify that in the configuration file: /etc/apt/apt.conf.d/50unattended-upgrades you have set:

Unattended-Upgrade::Automatic-Reboot "false";

This will prevent the software to issue reboot if needed by the upgrades.