On Thursday 11 July 2019 23:35:54 Mike Bird wrote: > On Thu July 11 2019 14:28:29 andre_debian@... wrote: > > On my laptop computer , the keys F11 and F12, > > adjusts the brightness of the screen. > > But on Debian-Stretch with trinity, these two keys do nothing. > I can't help you with F11 and F12 but if it's a 70% brightness > you want you can put "xbacklight -set 70" in a file called > ".xsessionrc" in your home directory. In my home directory, I haven't ".xsessionrc". (and not elsewhere). F11 for dimmer, F12 for brighter, work with Windows 10. Regards, Andr�