Public bug reported:
Since upgrading to kubuntu 16.04, the screen brightness remains low
(dimmed) after a period of inactivity even when the user becomes active
again. Laptop is on AC power throughout.
Steps to reproduce:
* in system settings->energy saving set dim period to 5 min
* after 10 min screen is dimmed
* when moving mouse and after possibly unlocking screen, the screen brightness
remains low
Expect to happen: screen brightness goes back up
Workaround: When screen brightness stays too low, go to system settings->energy
saving, select
box "Screen brightness", select any Level of brightness different from current
value, and click Apply.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: systemsettings 4:5.5.5-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16
Uname: Linux 4.4.0-36-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: KDE
Date: Tue Sep 13 09:57:52 2016
ExecutablePath: /usr/bin/systemsettings5
InstallationDate: Installed on 2014-08-05 (769 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
JournalErrors:
Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000']
failed with exit code 1: Hint: You are currently not seeing messages from other
users and the system.
Users in the 'systemd-journal' group can see all messages. Pass -q to
turn off this notice.
No journal files were opened due to insufficient permissions.
ProcEnviron:
LANGUAGE=en_GB:en
PATH=(custom, user)
XDG_RUNTIME_DIR=
LANG=en_GB.iso88591
SHELL=/bin/tcsh
SourcePackage: systemsettings
UpgradeStatus: Upgraded to xenial on 2016-08-01 (42 days ago)
** Affects: systemsettings (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1622890
Title:
screen brightness is not undimmed when user becomes active again
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