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16.04
graphics
mouse
screen
brightness
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URL:
https://askubuntu.com/q/1005664
Title:
Screen brightness changes when moving mouse to certain areas (XPS13 9379 - Ubuntu)
ID:
/2018/02/13/Screen-brightness-changes-when-moving-mouse-to-certain-areas-_XPS13-9379-Ubuntu_
Created:
February 13, 2018
Edited: February 13, 2018
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April 8, 2024
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I believe it’s caused by adaptive brightness:
01-25-2017 07:40 AM RE: Dell XPS 13 (9360) FHD, Adaptive Brightness
Issue ?There is no “issue”.
The Dell XPS 13 9360 ships with a design feature called
“content-adaptive brightness control” (CABC). This feature will change
the brightness of the screen depending on the content that is rendered
on the screen.A number of customers do not like this design feature (me included, by
the way). As a result, Dell have made available a tool which allows
turning off / turning on of CABC ( www.dell.com/…/DriversDetails ).
This tool is _only_ available for systems with the QHD display, as,
apparently, the tool reconfigures the screen panel firmware.For the record: personally, I am very happy with CABC turned off on my
QHD display. I am also very happy that there is no dynamic brightness
control (reacting to environment brightness) is implemented either.