Very unfortunate set of issues in this thread :-(.
A few observations follow:
The command in post #126 would be better with a 3 line request, i.e.:
Code:
lspci -k | grep -A 3 -i vga
Three lines get both driver and modules.
The 5.4.0 kernel is old. Mint is now up to 6.8. There's nearly always lots of improvements under the hood in newer kernels.
It's worth having a look at swap usage, if there is a swap partition or file, e.g.:
If there's no swap and usage of RAM is high, perhaps consider creating a swap file to ease the memory functioning.
To check the video RAM size, that is, the RAM in the GPU, run:
Anything equal to or over 1Gig or more would be fine.
Here's a command that will show the top users of memory by percentage on the system, and by implication the percentage of overall memory used with an example from a machine here:
Code:
$ ps --cols=60 -eo %mem,pid,args --sort=-%mem | head
%MEM PID COMMAND
6.9 7300 firefox-esr
2.6 8843 librewolf
2.1 11509 /usr/lib/firefox-esr/firefox-esr -contentproc -
1.4 7621 /usr/lib/firefox-esr/firefox-esr -contentproc -
1.2 9846 /tmp/.mount_LibreWkBjBdm/librewolf -contentproc
1.2 7473 /usr/lib/firefox-esr/firefox-esr -contentproc -
1.1 10219 /tmp/.mount_LibreWkBjBdm/librewolf -contentproc
1.1 8620 /usr/lib/firefox-esr/firefox-esr -contentproc -
1.0 9576 /tmp/.mount_LibreWkBjBdm/librewolf -contentproc