I have a Dell xps17 (windows 7) and I find the brightness control very annoying.
I often work during night time and the lower settings is fine but if I increase the brightness settings by just one step, the brightness is way to strong. I went in Windows mobility center and it seems I can only increase the brightness by steps of 6. I have seen this question but it's very old (2011) and the guy didn't receive an answer except "it's impossible", which seems outdated because I have found this software Adjust Laptop Brightness which seems to do what I want
But I wonder if there isn't a better solution (without having to download something), or a safer software (like an open-source one) to do this pretty simple (at least it's what it seems to me) job.
Thanks a lot!