Public bug reported:
After configuring screen energy saving in KDE, I noticed that after DPMS
standby, my screen brightness is set to maximum. This is confirmed by
`cat /sys/class/backlight/intel_backlight/brightness`. The problem can
be easily reproduce by switching to standby manually using `xset dpms
force standby`.
Steps to reproduce:
1) echo "300" | sudo tee /sys/class/backlight/intel_backlight/brightness
2) cat /sys/class/backlight/intel_backlight/brightness
This will report: 300
3) xset dpms force standby
4) Move mouse/press key
5) cat /sys/class/backlight/intel_backlight/brightness
This will report 937
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: xorg 1:7.7+7ubuntu4
ProcVersionSignature: Ubuntu 4.1.0-3.3-generic 4.1.3
Uname: Linux 4.1.0-3-generic x86_64
ApportVersion: 2.18-0ubuntu7
Architecture: amd64
CurrentDesktop: KDE
Date: Sat Aug 29 21:26:27 2015
InstallationDate: Installed on 2015-08-10 (20 days ago)
InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150809)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug wily
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https://bugs.launchpad.net/bugs/1490229
Title:
Brightness set to maximum after DPMS standby
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