unite-shell VS gnome-shell-extension-freon

There's a GitHub issue for that: https://github.com/hardpixel/unite-shell/issues/324

Maybe file an issue in GitHub repo so the developer can fix it.

This and this may be helpful

the best alternative to pixelsaver, but so ugly to use.

Unite

I imagine you are using GNOME? In that case you can use the extension called freon: https://extensions.gnome.org/extension/841/freon/

It would be cool to check your PC temperature, with either a gnome extension https://extensions.gnome.org like freon or install lm-sensors and logging the temperatures. as u/spxak1 said It's probably because your PC is being taxed and tries to cool down your system.

Freon is a nice Gnome Shell for this purpose, it works quite well. Make sure you check their wiki for the dependencies:

Probably. Freon, specifically, runs nvidia-smi, it wakes the device up each time it queries the temperature - if GPU temperature reporting is enabled.

I'm using Freon on Pop!_OS 21.10, and I see a number of sensors detected in my Thelio Mira. I wasn't able to find anywhere in the System76 docs about what each of these may be. The GPU, CPU cores, and disk temp sensors are obvious. I'm wondering where I can find docs or info on what "Composite", "PackageID", "Sensor 1",. "Sensor 2", and "temp1" are measuring.

You still need lm-sensors but there are multiple GUI alternatives to sensors. Simplest is probably xsensors and there are also some GNOME extensions that display data from lm-sensors, like Freon for example (I am not GNOME users so I don't have personal experience with it, but it has good reviews).