My Samsung laptop (series 7 Chronos, Radeon graphics, Core i5) came originally with Windows 8. When upgraded to Windows 10 the display brightness became stuck at maximum. The function keys also became unresponsive. But that is a different story.
After a lot of complaining and dely, Samsung provided a stand alone software that adjusted the brightness. It was not integrated into Windows 10. I got tired of the whole things and ditched Windows 10 and started using Ubuntu. Now I am still stuck with this dazzling bright screen which does not respond to brightness controls provided by Ubuntu.
I noticed that many people have had the same problem with other types of computers. I have tried some of them, but so far to no avail. Being new to Ubuntu I don't want to try anything too drastic in case I mess up my Ubuntu set up which is working very well at the moment.
I would be grateful for any suggestions that can fix the problem (and save my eyesight!)
Many thaks in advance