I can reproduce the issue by playing a video using vlc (both mp4 and flv, probably other formats too).
€ vlc --version VLC media player 2.1.4 Rincewind (revision 2.1.4-0-g2a072be) VLC version 2.1.4 Rincewind (2.1.4-0-g2a072be) Compiled by buildd on brownie.buildd (May 17 2014 14:52:46) Compiler: gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to x11-xserver-utils in Ubuntu. https://bugs.launchpad.net/bugs/1337886 Title: xset -q intermittently reports wrong DPMS stats Status in “x11-xserver-utils” package in Ubuntu: New Bug description: ### ### What I do ### I have a simple script running in the background that every second checks the output of `xset -q` for the current monitor state. However, every couple days the output is erratic. The script runs as a regular unprivileged user. I am not sure if the error occures when the monitor is blanked or active. To work around the problem I am restarting the xset command in the script until it comes back with proper output, yet unsure if that solves the problem though. ### ### What I expect (only showing last couple lines since the others are fine): ### DPMS (Energy Star): Standby: 300 Suspend: 450 Off: 600 DPMS is Enabled Monitor is On ### ### What I actually get ### The problem is INTERMITTENT and I do not have a good method to reproduce it, apart from waiting/retrying ... DPMS (Energy Star): Standby: 0 Suspend: 0 Off: 0 DPMS is Disabled Notice how: - the last line "Monitor is ..." is missing; - the numbers have changed from couple hundreds seconds to 0 ### ### My environment ### € lsb_release -rd Description: Ubuntu 14.04 LTS € apt-cache policy x11-xserver-utils x11-xserver-utils: Installed: 7.7+2ubuntu1 Candidate: 7.7+2ubuntu1 Version table: *** 7.7+2ubuntu1 0 500 http://nl.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages 100 /var/lib/dpkg/status € uname -a Linux diablo 3.13.0-29-generic #53-Ubuntu SMP Wed Jun 4 21:00:20 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: x11-xserver-utils 7.7+2ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2 Uname: Linux 3.13.0-29-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 CurrentDesktop: KDE Date: Fri Jul 4 16:30:08 2014 InstallationDate: Installed on 2013-08-13 (324 days ago) InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) SourcePackage: x11-xserver-utils UpgradeStatus: Upgraded to trusty on 2014-04-26 (69 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/x11-xserver-utils/+bug/1337886/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
