Score:0

Ubuntu 20.04 freezes as I scroll on Firefox tabs with 3 screens

ph flag

It happened twice. I have one HDMI screen plugged into my Lenovo laptop. Ubuntu 20.04 LTS. Then another USB 3.0 screen from USB port (actually it takes 2 so using a USB 3.0 hub type gadget off of one USB 3.0 port on laptop).
I could not log out nor do the alt-printscreen-"REISUB" to reset.
I had to do a hard shutdown holding power button both times.
What could be the issue?

~$ free
              total        used        free      shared  buff/cache   available
Mem:        7690036     2421544     2222912      406564     3045580     4559372
Swap:      10483704           0    10483704

@waltinator's recommendation, it looks like I have 1.5 times the SWAP space. Most recently I was running Matlab, had Pycharm open, many firefox tabs, Youtube streaming at the same time.

in flag
Depending on the combined display resolution, it could be a lack of video processing power. Without knowing which Lenovo device you’re using and it’s specifications, though, all one can do is speculate
waltinator avatar
it flag
System "freezes" are often caused by running too many, too large programs and running out of available memory. Use `free` to see if you have swap space, read `man mkswap swapon fstab fallocate` to create some. Swap space must be contiguous. use `mkswap` or `fallocate`, not `dd`. Traditionally, swap space of 1.5 × RAM has been recommended, but YMMV. If you don't plan to hibernate your system, you can have less than 1.0 × RAM.
mLstudent33 avatar
ph flag
@waltinator I updated my question but it looks like I have ample swap space
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