Urgent !!!!Ubuntu 20.04 freeze

I suggest you test the RAM using Memtest from GRUB as a good first test

I did that and everything seems to be good. I can also print the output from command line for you.

pagesize is 4096
pagesizemask is 0xfffffffffffff000
want 200MB (209715200 bytes)
got 200MB (209715200 bytes), trying mlock ...locked.
Loop 1/1:
  Stuck Address : ok
  Random Value : ok
  Compare XOR : ok
  Compare SUB : ok
  Compare MUL : ok
  Compare DIV : ok
  Compare OR : ok
  Compare AND : ok
  Sequential Increment: ok
  Solid Bits : ok
  Block Sequential : ok
  Checkerboard : ok
  Bit Spread : ok
  Bit Flip : ok
  Walking Ones : ok
  Walking Zeroes : ok
  8-bit Writes : ok
  16-bit Writes : ok

Great. If you install openssh-server on the system, can you connect to the system via SSH from another system or even your phone (ConnectBot is an SSH client for Android)

Are all your questions https://answers.launchpad.net/~mfaheem5697 related to the same device?

Which make and model is it, how much memory does it have?

What is the output of the following diagnostic commands

uname -a
lsb_release -crid
sudo dmidecode -t 1
free -m

Yes...can ssh

Yes unfortunately so many problems on one laptop except for 3 which are my friends
Linux nb-gk-lin-0001 5.4.0-122-generic #138-Ubuntu SMP Wed Jun 22 15:00:31 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.4 LTS
Release: 20.04
Codename: focal

# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 3.2.0 present.

Handle 0x0014, DMI type 1, 27 bytes
System Information
 Manufacturer: LENOVO
 Product Name: 20STS0T100
 Version: ThinkPad P15 Gen 1
 Serial Number: PF2G2M3R
 UUID: 61a0244c-2933-11b2-a85c-89545e7d7161
 Wake-up Type: Power Switch
 SKU Number: LENOVO_MT_20ST_BU_Think_FM_ThinkPad P15 Gen 1
 Family: ThinkPad P15 Gen 1

              total used free shared buff/cache available
Mem: 63978 2252 59374 488 2351 60597
Swap: 91 0 91

There is a BIOS update for April this year
https://support.lenovo.com/gb/en/downloads/ds546302-bios-update-utility-bootable-cd-for-windows-10-64-bit-linux-thinkpad-p15-gen-1-p17-gen-1-t15g-gen-1-t15p-gen-1-p15v-gen-1

You can update using the ISO and boot to that (Can probably transfer to USB if needed, using Etcher / Rufus etc)

Do you have this BIOS in your system?

N30ET32W (1.15 )
10/26/2020

This is the details of Bios in the system.

There is a newer one. It may help. Nicely they have a bootable ISO you can use.