Ubuntu Freezes unpredictably

Richard

12/18/22, 9:03 PM

Ubuntu freezes without any discernible pattern. I could have few apps open or many. It freezes in the middle of a video or when the computer is not in use.

The frequency of the freeze is not regular either. It can happen within minutes of logging on or after hours of work. The only pattern I see is that it happens at least once per hour while I'm working, and happens rarely while idle.

I've been using Ubuntu this way for several months now.

I've tried keyboard shortcuts but they won't work because the computer becomes completely unresponsive.

Are there log files containing recovery info that I could look at that might give some hint regarding these crashes?

Ubuntu 20.04.2 LTS
I'm running ubuntu on a Dell Inspiron Host bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register (rev 35)

@heynnema

~$ free -h
      total   used   free   shared   buff/cache   available
Mem:  7.7Gi   1.2Gi  3.9Gi  175Mi    2.6Gi        6.0Gi
Swap: 2.0Gi   0B     2.0Gi

~$ sysctl vm.swappiness
vm.swappiness = 60

~$ swapon -s
Filename     TypeSize    Size       Used  Priority
/swapfile    file        2097148    0     -2

The system often freezes silently. i.e. I don't hear a lot of disk activity. I found this suspicious message at the tail end of /var/log/syslog right after a freeze occurance...

Aug 20 16:03:27 tracker-miner-f[1468]: (Sparql buffer) Error in array-update: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying

I'm not using wayland...

~$ echo $DESKTOP_SESSION
ubuntu

122

0 + 3

freeze

heynnema

12/18/22, 9:41 PM

Edit your question and show me `free -h` and `sysctl vm.swappiness` and `swapon -s`. Start comments to me with @heynnema or I'll miss them.

matigo

12/18/22, 9:49 PM

You may find some information in `/var/log/syslog` that points to an issue. Generally system freezes are the result of overheating or running out of memory.

Simon Banks

12/19/22, 9:15 AM

Are you using Wayland?, It has issues with a lot of video drivers.. Try switching to standard xorg see if it improves things

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Ubuntu Freezes unpredictably

TH: Ubuntu ค้างอย่างคาดเดาไม่ได้

RO: Ubuntu îngheață în mod imprevizibil

RU: Ubuntu неожиданно зависает

VI: Ubuntu đóng băng không thể đoán trước

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