New Intel NUC (Celeron) hang every 6 hours with UCS on it - but only without monitor and keyboard

UCS - Univention Corporate Server
#1

Hello all,

really strange. I have here one intel NUC with UCS 4.4.2 installed. The NUC runs as backupdc. It is working fine, but only 6 hours. After this time the computer is not reachabel anymore. If i pluged in an monitor and an keyboard, i can’t see anything on the screen. ACPI didn’T work. So System is in freeze state.

But after i pluged in Keyboard and Monitor, the System is running fine without problems, last test over 8 days. I don’t understand this. I’ve changed a lot of things in the bios, but no changes at the behavior.

Maybe it depends that a graphical screen is starting without monitor?

I’ve configured remotelogging with rsyslog. But at the time if the nuc is going to hell, there is no log, nothing.

Maybe someone have a idea :slight_smile:

#2

This day 12h. :scream:

#3

without keyboard/monitor?

#4

Hello,

Nope, it’s not depending on a display or any input device.
“…After this time the computer is not reachabel anymore …” How about power management and other BIOS settings? see https://www.intel.com/content/www/us/en/support/articles/000022600/mini-pcs.html

I also had one for testing and especially the NIC disappeared under specific “wrong” settings.

good luck

#5

Really interesting. So many NUC’s are running here, but all big ones with i7. So that is the first slow one. I check all the settings and test again.

Thanks :slight_smile:

#6

Done. Now waiting. :slight_smile:

#7

Installed also the newest biosupdate. Same System death. Is there a way to install a newer Kernel?

#8

Installed new Kernel 4.19 same thing. Maybe the new hardare is damaged. Dmesg attached.
intelNUC-dmesg.txt (81,0 KB)

#9

And if installing a plain Debian or any other standard distro? Just for a test? What happens there?
A simple search: https://gibiru.com/results.html?q=linux+hang+every+6+hours+inel+nuc&cx=partner-pub-5956360965567042%3A8627692578&cof=FORID%3A11&ie=UTF-8 returned a few pages of results, some even with a suggestion of faulty hardware.

As feedback: The Intel Nuc i5, 8gb memory I had for testing, it didn’t convince me at all. I went back straight back to my 14 year dual core with 4gb of memory, a full desktop

#10

New Memory, same model but other manufacture (Kingston) works. YES :slight_smile: :slight_smile: :slight_smile:

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