11-14-2016, 12:26 PM
Welcome, there are a number of threads on this topic. Simply Search the word 'brightness' to view them from the Search box at the top of the Forums. Some examples:
https://www.linuxliteos.com/forums/video...sus-1001p/
https://www.linuxliteos.com/forums/video...rightness/
https://www.linuxliteos.com/forums/other...t-working/
https://www.linuxliteos.com/forums/video...sus-1001p/
https://www.linuxliteos.com/forums/video...rightness/
https://www.linuxliteos.com/forums/other...t-working/