Ubuntu 20.04 freezes randomly, sometimes after 20 minutes, sometimes after several hours.
This means I can't move the mouse nor do anything with my keyboard. If sound is playing it repeats in ~2 second loop. No keyboard combination does anything. Only a hard reboot with the PC power switch gets my computer to restart.
According to this post I have collected some information, though I am a newbie to these things and can't make any real sense of any of this:
free -h
total used free shared buff/cache available
Mem: 15Gi 4,1Gi 7,3Gi 103Mi 4,0Gi 10Gi
Swap: 2,0Gi 0B 2,0Gi
sysctl vm.swappiness
vm.swappiness = 60
ls -al /var/crash
total 8
drwxrwsrwt 2 root whoopsie 4096 Dez 17 12:03 .
drwxr-xr-x 14 root root 4096 Feb 9 2021 ..
sudo lshw -C memory
*-firmware
description: BIOS
vendor: AMI
physical id: 0
version: F.42
date: 05/28/2020
size: 64KiB
capacity: 16MiB
capabilities: pci pnp upgrade shadowing cdboot bootselect edd int5printscreen int9keyboard int14serial int17printer acpi usb biosbootspecification netboot uefi
*-memory
description: System Memory
physical id: 42
slot: System board or motherboard
size: 16GiB
*-bank:0
description: DIMM DDR4 Synchronous 2666 MHz (0,4 ns)
product: M378A1G43TB1-CTD
vendor: Samsung
physical id: 0
serial: 719AF9F3
slot: ChannelA-DIMM0
size: 8GiB
width: 64 bits
clock: 2666MHz (0.4ns)
*-bank:1
description: DIMM DDR4 Synchronous 2666 MHz (0,4 ns)
product: M378A1G43TB1-CTD
vendor: Samsung
physical id: 1
serial: 719AF9F7
slot: ChannelB-DIMM0
size: 8GiB
width: 64 bits
clock: 2666MHz (0.4ns)
*-cache:0
description: L1 cache
physical id: 4c
slot: L1 Cache
size: 384KiB
capacity: 384KiB
capabilities: synchronous internal write-back unified
configuration: level=1
*-cache:1
description: L2 cache
physical id: 4d
slot: L2 Cache
size: 1536KiB
capacity: 1536KiB
capabilities: synchronous internal write-back unified
configuration: level=2
*-cache:2
description: L3 cache
physical id: 4e
slot: L3 Cache
size: 12MiB
capacity: 12MiB
capabilities: synchronous internal write-back unified
configuration: level=3
*-memory UNCLAIMED
description: RAM memory
product: Cannon Lake PCH Shared SRAM
vendor: Intel Corporation
physical id: 14.2
bus info: pci@0000:00:14.2
version: 10
width: 64 bits
clock: 33MHz (30.3ns)
capabilities: pm cap_list
configuration: latency=0
resources: memory:a3516000-a3517fff memory:a3520000-a3520fff
total 8
drwxrwsrwt 2 root whoopsie 4096 Dez 17 12:03 .
drwxr-xr-x 14 root root 4096 Feb 9 2021 ..
sudo lshw -C memory
*-firmware
description: BIOS
vendor: AMI
physical id: 0
version: F.42
date: 05/28/2020
size: 64KiB
capacity: 16MiB
capabilities: pci pnp upgrade shadowing cdboot bootselect edd int5printscreen int9keyboard int14serial int17printer acpi usb biosbootspecification netboot uefi
*-memory
description: System Memory
physical id: 42
slot: System board or motherboard
size: 16GiB
*-bank:0
description: DIMM DDR4 Synchronous 2666 MHz (0,4 ns)
product: M378A1G43TB1-CTD
vendor: Samsung
physical id: 0
serial: 719AF9F3
slot: ChannelA-DIMM0
size: 8GiB
width: 64 bits
clock: 2666MHz (0.4ns)
*-bank:1
description: DIMM DDR4 Synchronous 2666 MHz (0,4 ns)
product: M378A1G43TB1-CTD
vendor: Samsung
physical id: 1
serial: 719AF9F7
slot: ChannelB-DIMM0
size: 8GiB
width: 64 bits
clock: 2666MHz (0.4ns)
*-cache:0
description: L1 cache
physical id: 4c
slot: L1 Cache
size: 384KiB
capacity: 384KiB
capabilities: synchronous internal write-back unified
configuration: level=1
*-cache:1
description: L2 cache
physical id: 4d
slot: L2 Cache
size: 1536KiB
capacity: 1536KiB
capabilities: synchronous internal write-back unified
configuration: level=2
*-cache:2
description: L3 cache
physical id: 4e
slot: L3 Cache
size: 12MiB
capacity: 12MiB
capabilities: synchronous internal write-back unified
configuration: level=3
*-memory UNCLAIMED
description: RAM memory
product: Cannon Lake PCH Shared SRAM
vendor: Intel Corporation
physical id: 14.2
bus info: pci@0000:00:14.2
version: 10
width: 64 bits
clock: 33MHz (30.3ns)
capabilities: pm cap_list
configuration: latency=0
resources: memory:a3516000-a3517fff memory:a3520000-a3520fff
grep -i swap /etc/fstab
/swapfile none swap sw 0 0
sudo dmidecode -s bios-version
F.42
I'm sorry if any of this is unrelated. I am suspecting my GPU is not working properly, because my programs run much more slowly than on my dual boot Windows on the same system. Also, I get some libcudart and libcublas errors when running some of my programs, and these seem to be related to my GPU as far as I know.
Do you have any suggestions on how to troubleshoot or resolve this issue?
As requested I ran the commands dmesg,cat /var/log/syslog ,journalctl and this are the results:
I couldn't paste all this code in here due to body limitation, so I put it on GitHub.
