It sounds like a driver problem.
But I can't for the life of me find out what a Rivetes' HP6000 is after a 5 min search.
If you could post a link to it on the web it would help
I am presuming a laptop of some form?
If it is the screen brightness you could try a few tricks.
1. fn F5 and back sometimes resets the LCD display.
2. Change screen settings and then don't accept them.
Only real solution is to get a driver that works.