There's still some freezes and other crashes (even worse actually, just moving the mouse around is sloooow and there is a huge delay, I thought it was normal at first because of the classic theme...facepalm) but this time I think I know where it comes from.
I tried to play a 720p h264 video while monitoring my system... and cpu was at 100% and my laptop really hot.
I already got this problem on windows, and I just downloaded the codecs and the gpu driver and it worked fine afterwards.
So knowing that is there something I can do? Maybe change the graphic drivers?
That is HIGH. You really would prefer to never go over 60 degrees c and better to avoid going over 45degress except for very short bursts - I run at about 30 degrees c max.
I think your problem may be a lack of proper cooling. That would definitely cause lag, slowness and graphics trouble.
I thought so... actually my laptop is making a lot of fan noises, but when I took it to an expert he said it was nothing important, eventually the thermal paste to change but he said it didn't recommend it because it would not affect anything...
I make it a point to avoid ever talking bad about another persons mechanical suggestions or opinions.
But...
(cough)
Thermal paste is Crucial in cooling.
If the Fan Management is what is at play, Windows and Z15 may have been utilizing Better Fan Management with faster fan speeds. It is possible that the fans are going out- and the symptoms are now becoming apparent.
It is also possible that the fans are not being properly managed.
So, suggest checking Software Side- first.
Does
sudo apt install lm-sensors
Show it as installed? If not- install it and
sudo sensors-detect
follow All The Prompts to configure.
Run
sensors
Check fan speed:
sensors | grep -i fan
after this... I forget. Im gonna have to look it up,
hang on..
EDIT: The command was successful. Not sure what it did but apparently now when playing a video CPU usage is still low. (Not 100% sure tho because it froze after a moment again )
EDIT 2: After an other hard reboot it seems the cpu usage is still rather high, even if slightly less... (wow and for just a second the temp went up to 98°C!!!)
EDIT 3: After some time the fans started to calm down and now cpu is around 60°C
I have never actually used Nvidia Card on a Linux distro. The only thing I do know is that in the Nvidia Settings, somehow, you can turn the Nvidia card off - or set it to not come on...
Would like to test if the Intel dedicated graphics shows the same symptoms with no Nvidia interference.
The only other way to be sure would be to
sudo apt remove --purge nvidia*
Then reinstall with:
sudo ubuntu-drivers autoinstall
edit: I think
prime-select query
Used to show which card you are using - not sure if it still does or requires nvidia prime or ---
Then select card with
I agree that is an improvement; I would have preferred to see cpu usage around 40%...
However, what you describe may be on par with the specs for that machine:
Yes I think it's better than before as well. (Even if cpu rises at 90°C when playing a video -still 60 in normal conditions - at least there's no more freezes and the overall system is way more responsive).
Well I guess there's no escape, I will need to ask the "expert" I know to put some cooling on the cpu when I will get the funds (he told me it was rather expensive because there's a need to remove everything).
Oh btw stupid question but if I try to boot again on the old desktop will the changes be applied on it as well?
There is.
I've done it many times. But... if you are adventurous - and believe in yourself - you can do it. If you take the time to absorb some guides and check the specs- you can absolutely handle doing so. If you want. Someday.
