I'm experiencing some system issues that started about 1–2 weeks ago. Occasionally, when I open certain applications, the entire system freezes for 1–2 seconds. For example, while listening to music, if I click on the system settings, the music stops briefly and then resumes where it left off.
Here are some other issues I'm encountering:
Sometimes, after booting the system, I see horizontal light lines coming from the corners of the screen.
The color saturation on the display becomes extremely high.
Night Light does not turn on, and no color adjustments are applied to the screen.
Since I spend most of my time developing software, it is frustrating to deal with these interruptions. For instance, when I press F12 to open the developer tools in a browser, the system either freezes momentarily or takes 4–5 seconds to respond.
I tried switching between different power modes, but this had no effect on the problems mentioned above.
For context, I was using Windows 11 until about two months ago. I'm really happy with my switch to Zorin OS, but these system freezes are affecting my experience.
Some things that you can check and try:
Are Secure Boot, Fast Boot and Fast start disabled in Windows (if dual boot)?
Is fractional scaling activated? If so, try turning it off.
How high is the refresh rate of your display?
Do you have a Nvidia graphics card? Then you could try a different driver (nouveau or nvidia).
Does this happen when a certain program is open? If so, see if it is installed as a flatpak or snap and you can use a Zorin package instead (you can see which package format you have by clicking on uninstall in the Software Manager).
If you have new, up to date hardware you could install a newer kernel.
I'm using a 144Hz display. I also tried switching the refresh rate to 60Hz, but it made no difference regarding the screen color issues.
I'm not sure how to do this. Should I use the NVIDIA X Server Settings app for this?
No, it also happens when I try to open the system settings, for example. So it's not related to a specific application.
I took a short break and locked my screen using SUPER + L, then stepped away from the device.
When I came back and unlocked the screen, Night Light was suddenly active. I tried disabling it from the settings, but it wouldn't turn off.
Then I locked the device again and turned the screen off. When I turned it back on, Night Light was suddenly disabled.
I'm not exactly sure what's causing this behavior.
You can look at "Software and Updates"> additional drivers what graphics drivers are there.
Secure boot and Fast boot should be turned off. They can cause problems.
Do you have set a schedule for the nightlight?
I see, You are using a Nvidia 3060 Graphics. That You are on Xorg ist good. You shouldn't change that. You could try it with a different Driver. To switch open the Terminal and type:
sudo apt purge nvidia*
to uninstall the current Nvidia Driver. To install a new Driver type:
