I am having trouble with UB for about a week now.
Out of nowhere, after some time (an hour or two) using it at work, it gets slow and freezes.
If I am quick, I log out and back in, what solves the issue and the system continues working normally.
Any idea what’s going on or how I can start to solve the problem?
Hi,
first the « material » things : fans, dirt, temperature, thermal paste, all these sorts of things.
If everything looks ok on this side, look system side for :
⋅ ram & cpu usage ( system-monitor, htop )
⋅ any hardware error ( dmesg )
⋅ state of your storage ( df -Th, df -i )
⋅ up-to-date system ( sudo apt update, sudo apt full-upgrade )
⋅ any scenario to reproduce the issue…
No crystal ball here 
so may you provide some info about your UB version and hardware ?
Thanks for replying … I have a new Asus Vivibook, with 19.10 running.
But the freezing hasn’t occurred again. It was probably a random event, so, I just might close the topic.
If it’s a « new » machine then might not be a material problem ( dirt & c° ).
In case of freezing, try to launch htop or monitor-system and see which programs eat ram or cpu.
Post here results of any suggested command.