Public bug reported: OS VERSION DISTRIB_ID=Ubuntu DISTRIB_RELEASE=17.04 DISTRIB_CODENAME=zesty DISTRIB_DESCRIPTION="Ubuntu 17.04"
UPOWER VERSION upower: Installed: 0.99.4-4 Candidate: 0.99.4-4 Version table: *** 0.99.4-4 500 500 http://us.archive.ubuntu.com/ubuntu zesty/main amd64 Packages 100 /var/lib/dpkg/status EXPECTED BEHAVIOR Expected displays to stay on while idle, for at least a few minutes (per Power Settings). WHAT HAPPENED INSTEAD (and hardware information) I just upgraded from a fully-updated Ubuntu 16.10 64-bit Desktop installation to 17.04, using the update manager. In 16.10 and 16.04 LTS, this issue did not exist for me. I'm using a MacBook Pro with Ubuntu installed in a dual-boot configuration. I have two attached monitors: one via the mini DisplayPort and one via HDMI. I normally keep the laptop lid closed while working. Since the upgrade (persisting through several reboots), whenever I have the notebook lid closed, if I don't touch the keyboard or mouse for about 5 seconds, both external displays go into power- saving mode. When I touch the keyboard/mouse, again, they instantly come back up (no delay), indicating that the computer had probably not been suspended. If I then don't touch the keyboard/mouse for another 5 seconds, they immediately go back into power saving mode. (Repeat...) Going into Display Settings and changing "Built-in Display" to on or off doesn't seem to have any effect. When I close the lid, it changes itself back to "OFF"; and when I open the lid, it changes itself back to "ON". (This seems like a sensible behavior.) Notably, the on/off switch doesn't seem to move unless I exit and re-enter Display Settings. I found a workaround to this problem on a forum post: In "/etc/UPower/UPower.conf", change "IgnoreLid=false" to "IgnoreLid=true". After doing this, the Built-in Display switch stays on whatever I set it to, regardless of whether the laptop lid is open or closed (which probably isn't ideal); but more importantly, the external displays no longer turn off when idle for a few seconds. They now obey the settings I explicitly define in Power Settings. ** Affects: upower (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to upower in Ubuntu. https://bugs.launchpad.net/bugs/1686157 Title: External Displays Turn Off After Only A Few Seconds Of Inactivity Status in upower package in Ubuntu: New Bug description: OS VERSION DISTRIB_ID=Ubuntu DISTRIB_RELEASE=17.04 DISTRIB_CODENAME=zesty DISTRIB_DESCRIPTION="Ubuntu 17.04" UPOWER VERSION upower: Installed: 0.99.4-4 Candidate: 0.99.4-4 Version table: *** 0.99.4-4 500 500 http://us.archive.ubuntu.com/ubuntu zesty/main amd64 Packages 100 /var/lib/dpkg/status EXPECTED BEHAVIOR Expected displays to stay on while idle, for at least a few minutes (per Power Settings). WHAT HAPPENED INSTEAD (and hardware information) I just upgraded from a fully-updated Ubuntu 16.10 64-bit Desktop installation to 17.04, using the update manager. In 16.10 and 16.04 LTS, this issue did not exist for me. I'm using a MacBook Pro with Ubuntu installed in a dual-boot configuration. I have two attached monitors: one via the mini DisplayPort and one via HDMI. I normally keep the laptop lid closed while working. Since the upgrade (persisting through several reboots), whenever I have the notebook lid closed, if I don't touch the keyboard or mouse for about 5 seconds, both external displays go into power-saving mode. When I touch the keyboard/mouse, again, they instantly come back up (no delay), indicating that the computer had probably not been suspended. If I then don't touch the keyboard/mouse for another 5 seconds, they immediately go back into power saving mode. (Repeat...) Going into Display Settings and changing "Built-in Display" to on or off doesn't seem to have any effect. When I close the lid, it changes itself back to "OFF"; and when I open the lid, it changes itself back to "ON". (This seems like a sensible behavior.) Notably, the on/off switch doesn't seem to move unless I exit and re-enter Display Settings. I found a workaround to this problem on a forum post: In "/etc/UPower/UPower.conf", change "IgnoreLid=false" to "IgnoreLid=true". After doing this, the Built-in Display switch stays on whatever I set it to, regardless of whether the laptop lid is open or closed (which probably isn't ideal); but more importantly, the external displays no longer turn off when idle for a few seconds. They now obey the settings I explicitly define in Power Settings. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/upower/+bug/1686157/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp