Why in my pc Cinnamon session start fans?

I don’t know why, but when I start cinnamon session and oepn vivaldi with one youtube tab, pc warm up and start coolers.In KDE Plasma it is not reproducible. I use cinnamon x.org

sensors                                      
coretemp-isa-0000 
Adapter: ISA adapter 
Package id 0:  +63.0°C  (high = +100.0°C, crit = +100.0°C) 
Core 0:        +64.0°C  (high = +100.0°C, crit = +100.0°C) 
Core 1:        +63.0°C  (high = +100.0°C, crit = +100.0°C) 
 
nvme-pci-0200 
Adapter: PCI adapter 
Composite:    +60.9°C  (low  =  -0.1°C, high = +82.8°C) 
                       (crit = +84.8°C) 
Sensor 1:     +60.9°C  (low  = -273.1°C, high = +65261.8°C) 
Sensor 2:     +70.8°C  (low  = -273.1°C, high = +65261.8°C) 
 
dell_smm-isa-00de 
Adapter: ISA adapter 
fan1:        4494 RPM  (min =    0 RPM, max = 4900 RPM) 
temp1:        +78.0°C   
temp2:        +52.0°C   
temp3:        +50.0°C   
pwm1:            128%  MANUAL CONTROL 
 
BAT0-acpi-0 
Adapter: ACPI interface 
in0:          12.05 V   
curr1:       899.00 mA

It is in CInnamon

My pc is Dell Vostro 3501 without Nvidia hardware. From RAm used 3 GiB from 8. GPU - 3%. CPU- 20%

Probably because Cinnamon doesn’t have as many things as Plasma has, so the computer doesn’t need to work as much to load everything and set up things the way it would under Plasma.

Maybe you misunderstood.Why KDE Plasma take lower power of pc than cinnamon? I want to use cinnamon without so load

Also I don’t know why but in the startup of cinnamon session pc tries start plasma processes as baloo,drkonqi and others.

by chance do you have KDE and Cinnamon on the same install?

Yes, I ready to remove plasma, but I use sddm so I don’t know know how remove it without sddm

Removed plasma,but still the same problem with pc burning

you problem is your running two DE’s at the same time. This is not recommended as it generally causes issues. Each DE should have its own setup.

why not remove it and sddm then reinstall sddm after the uninstall. Seems that would be the easiest way without just doing a new install

So yu suggest reinstall cinnamon also?

It would probably be easier to be honest. This will guarantee that the install is pure and doesn’t have leftovers from KDE still installed. If your interested in using more than one DE at a time I would suggest you install a Virtual solution.

And I could not run Foot in x11.

warn: config.c:1635: /home/murzilka/.config/foot/foot.ini:68: [colors]: deprecated; use [colors-dark] instead
 err: wayland.c:1788: failed to connect to wayland; no compositor running?

Foot is wayland only.

As to the cinnamon question, it’s probably doing more on the CPU rather than the graphics card and therefore firing up the fans.

How do look like kitty as foot default?

So it is normal?

Just I reinstalled, but still see issue.DUring some time after fans starts, computer work normal and fans turning on

Also tray for me displays incorrect in cinnamon
image

yes because the CPU being used more means it heats up quicker.