Hello everyone,

I have an issue with my desktop, which I really don’t understand.

It is a desktop PC, with a Nvidia GPU, which I use for development (of AI, but like the image analysis part, not the slop part). I usually let it always run, and my previous machine was working fine like this.

However, on this machine, I get crashes after either a few days or a few weeks.

These “crashes” are weird : the machine is still up (and I can ping it), however I can’t ssh into it, I can’t connect to cockpit either, and can’t login physically on it (the display is frozen).

The only way to get it back up is to forcefully shut it down, wait a little and then powr it back up; but this isn’t ideal, since it interrupts computations etc

The only crashes shown in journalctl are related to irrelevant (I believe) programs : KDEConnect, DrKronqi, etc; nothing right before the crash.

Do you have any idea what could cause this ?

I tried logging temperatures, but nothing abnormal showed up. I ran memtest86+, nothing showed up either. Smart tells me everything is alright for my drives as well.

Right now I’m thinking about changing the alimentation or the motherboard, but frankly I don’t know what’s going on and it’s really puzzling me.

  • Buffalox
    link
    fedilink
    arrow-up
    5
    ·
    59 minutes ago

    Sounds like a long tedious elimination process is ahead.
    But since the only errors you get regard KDE, I’d try installing another desktop environment. Afterwards you can generally choose which desktop to log into at the login screen. And when it’s resolved whether or not KDE is the problem, you can easily switch back if you want. So it’s very easy to try.
    But each elimination will take 5 days!! If the computer behaves the same each time it crashes, it is definitely NOT random. If it was random it would be different things each time, and then it could be RAM or even CPU problems. But this sounds like a software problem.

    • achille225@jlai.luOP
      link
      fedilink
      arrow-up
      1
      ·
      26 minutes ago

      Thank you for your answer ! I’ll try it (nothing to lose), but more often than not I don’t login to the desktop; but maybe de login screen is enough ? I don’t know, I’ll try using gnome anyway.