Public bug reported:
There is a bug report in Debian already:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=851810
Not sure whether it helps to report it here, so just to be sure.
Using Ubuntu 17.04 Beta with latest updates, no matter what is done with
xcalib, there is the same error:
"Error - unsupported ramp size 0"
E.g. "xcalib -a -b .5" or "xcalib profile.icc".
I use xcalib to adjust both gamma and brightness (i.e. the level of
black, not brightness as in screen brightness). I haven't found any
other way to do this with a laptop, so if you know any, please tell me.
** Affects: xcalib (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1677745
Title:
Xcalib not working in any way
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