Hello, my screen on elementary OS 5.1.7 Hera will not dim using the slider control, the night light also will not work. I had this problem using Ubuntu also but updated the kernel and it began working. Since I think that it will probability be fixed in the next kernel update I am making this comment just for FYI purposes.
Here is a screenshot of my OS version:
Hello, my screen on elementary OS 5.1.7 Hera will not dim using the slider control, the night light also will not work. I had this problem using Ubuntu also but updated the kernel and it began working. Since I think that it will probability be fixed in the next kernel update I am making this comment just for FYI purposes. Here is a screenshot of my OS version: