Thank for the reply.
HP G62 laptop.
I am currently using Puppy Linux, with installed Redshift.
The laptop 'f2' and 'f3's, turning down and up the light, ineffective keys in Tiny Core, an excess of light hurts my eyes, so I couldn't tweak it.
I have read DistroWatch Weekly, Issue 295, 23 March 2009 interview with Robert Shingledecker, liked it.