Monitor sleeps without regard to brightness & lock settings

[Daniel G Billings Jr]

Setting the monitor to never sleep has no effect, X will force it to sleep after 10 minutes of inactivity regardless of what you set. There is a very simple workaround of disabling that feature in X, but there is no GUI to do this, and it's particularly troublesome for a multimedia PC, where it can be in active use despite no one having touched any input devices for over an hour (e.g. while watching a movie).

Again, there is a simple workaround, but the fact that a workaround exists doesn't make it less of a bug, especially when the workaround requires things that an average user would shy away from (terminal/X settings). I know for a fact that it does this on both Nvidia and AMD proprietary drivers (installed through the additional drivers dialogue), and I haven't specifically tested it, but find it highly likely that it would do this with the open source variants as well.

Maybe related to https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/273484
But I didn't find any other reports of monitors sleeping too much.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity-control-center 14.04.3+14.04.20140922-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.19.0-33.38~14.04.1-generic 3.19.8-ckt7
Uname: Linux 3.19.0-33-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Nov 20 11:17:16 2015
ExecutablePath: /usr/bin/unity-control-center
InstallationDate: Installed on 2015-11-16 (3 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
SourcePackage: unity-control-center
UpgradeStatus: No upgrade log present (probably fresh install)
usr_lib_unity-control-center: deja-dup 30.0-0ubuntu4