On Tue, 29 Jul 2014, Hans de Goede wrote: > I've been thinking a bit about this, and I believe that the right answer > here is to do the linear to logarithmic mapping in user-space. The intel > backlight interface has a type of raw, clearly signalling to userspace > that it is a raw "untranslated" interface, as such any fanciness such as > creating a logarithmic scale should be done in userspace IMHO. I was going to respond that the kernel does its own brightness stepping when userspace isn’t paying attention. But apparently only acpi_video does that, and intel_backlight does not; my brightness keys now have no effect outside of the X server. Is that the expected behavior? In any case, if you think punting part of the problem to userspace is the right answer, then to flesh out the details: do you think it’s right for userspace to assume that any backlight with type ‘raw’ is a linear scale that needs to be converted, and one with type ‘firmware’ or ‘platform’ has already been converted appropriately? Anders _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
