On 12/01/2014 03:04 PM, Jani Nikula wrote: > On Fri, 28 Nov 2014, Jay Aurabind <mail at aurabindo.in> wrote: >> Hello all, >> >> I notice that some activity has been going on with the minimum value >> of display brightness recently (e1c412e7575). >> >> But the minimum value thats currently chosen is not at all acceptable >> for my eyes. My display is working perfectly without that restriction >> on minimum intensity. I tend to stare at the screen a lot and the >> current minimum settings is straining my eyes. >> >> Even if you say that it may not be good for the devices, I still >> insist, because I want my *display* to fail first, not my eyes. So >> please try providing a way for the needy users to override this >> minimum settings. I hope adding a module parameter would be easy fix. >> >> Something like this: ? (I dont call myself a kernel programmer yet, >> just scratching the surface) >> >> >> Provide provision for users to disable restriction on minimum brightness >> value introduced in: >> >> commit e1c412e75754ab7b7002f3e18a2652d999c40d4b >> Author: Jani Nikula <jani.nikula at intel.com> >> Date: Wed Nov 5 14:46:31 2014 +0200 >> >> drm/i915: safeguard against too high minimum brightness >> >> There are systems which work reliably without restriction on minimum >> value of display brightness. Also the arbitrary value may be too high >> for many users as well. > > Please file a new bug at [1], reference this mail, and attach > /sys/kernel/debug/dri/0/i915_opregion.
Thank you for the response. But the file you mentioned to attach seems to be a binary file, because I'm getting lot of junk characters. Is this normal ? > > The minimum value is chosen and provided by the OEM. There's still some > open questions about the interpretation of the value though (which lead > to the commit you referenced), so I'm hesitant to make changes before we > have those cleared up.
