On Wed, 2016-05-11 at 23:16 +0200, Philipp Kern wrote: > On Wed, May 11, 2016 at 01:50:33PM -0400, Nicholas D Steeves wrote: > > > > To my knowledge only screens with a phosphorus layer do, and the only > > modern (and recently no longer manufactured) ones are plasma TVs...and > > those eventually suffer loss of contrast or faded black level because > > they burn the whole screen so that the background region has the same > > black point as the burnt-in region. > I have seen burn-in on some older TFTs at least (mostly because > screensavers failed to blank, so the clock burned itself in). Those > were not terribly old (5-7y maybe?), but certainly not LED. I'm totally > fine with blanking measured in hours and that seems like a good > workaround. > > I also like the dimming idea. It sounds to me like there could be some > filter be applied to the output of X... xrandr --brightness But it is implemented in individual drivers by setting hardware gamma correction, and the generic fbdev driver we use in the installer doesn't support that. Ben. -- Ben Hutchings If you seem to know what you are doing, you'll be given more to do.
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