Czikus, could you please run the following command from a terminal as it will automatically gather and attach updated debug information to this report:
apport-collect -p xorg 1490229 Please ensure you have xdiagnose installed, and that you click the Yes button for attaching additional debugging information. ** Changed in: xorg (Ubuntu) Importance: Undecided => Low ** Changed in: xorg (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1490229 Title: Brightness set to maximum after DPMS standby Status in xorg package in Ubuntu: Incomplete Bug description: 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) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1490229/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp