This bug has been around since 14.04 and persists in 18.04 This bug causes unexpected filesystem corruption - hit the power button to suspend the laptop and put it in your suitcase. Take a flight and find it dead and corrupt on arrival.
This bug causes lost work - Suspend the laptop, suspend fails, work you didn't save is lost because the system unexpectedly loses power. This bug causes permanent degradation of laptop batteries - Power policy set to power off at 20% capacity to extend laptop battery. Fails, battery is drained until it is flat, resulting in permanent damage and reduced capacity. This bug causes security violations - Suspend the laptop. Suspend never happens. Someone else comes and uses it because it never locked even though you hit the button. These are serious issues. The policy should be terminated immediately. Its purpose was to prevent lost work. Instead, it is causing lost work, lost hardware stability, lost security. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1600622 Title: Screen doesn't lock or go to sleep when certain Chrome tabs are open Status in gnome-session package in Ubuntu: Confirmed Bug description: $ lsb_release -rd Description: Ubuntu 16.04 LTS Release: 16.04 $ apt-cache policy gnome-session-bin gnome-session-bin: Installed: 3.18.1.2-1ubuntu1.16.04.1 Candidate: 3.18.1.2-1ubuntu1.16.04.1 Version table: *** 3.18.1.2-1ubuntu1.16.04.1 500 500 http://es.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages 100 /var/lib/dpkg/status 3.18.1.2-1ubuntu1 500 500 http://es.archive.ubuntu.com/ubuntu xenial/main amd64 Packages I'm using gnome-session-flashback What happens: The screen doesn't lock when having certain pages in Chrome tabs Expected: The screen should lock after the configured timeout in settings. I've been having this issue sice before 14.04, which I recently upgraded (fresh install) to 16.04. After fresh install, the screen would turn down and lock the computer after 10 minutes (or whatever time I setup). At one point it stopped working. The screen never shuts down unless I manually lock the session with CTRL-ALT-L. I've followed the steps in https://wiki.ubuntu.com/DebuggingScreenLocking#Debugging_procedure The culprit seems to be that Chrome issues some suspend inhibitions through dbus when doing certain operations. Many people find this problem when using Yahoo Mail. I can reproduce it with Odoo. I'm pretty sure that Chrome is doing something else of what i've found out. 1) Gnome screen saver works correctly. I can trigger it manually with: $ gnome-screensaver-command -a 2) Gnome screen saver never receives the "session idle" status callback. 3) When Chrome is not running, I can manually inhibit the idle status: $ gnome-session-inhibit --app-id test --reason "manual idle inhibit" --inhibit-only --inhibit idle:suspend Inhibiting until Ctrl+C is pressed... 4) I can query the inhibitors: $ dbus-send --print-reply --dest=org.gnome.SessionManager /org/gnome/SessionManager org.gnome.SessionManager.GetInhibitorsmethod return time=1468170482.066533 sender=:1.19 -> destination=:1.1315311 serial=1329103 reply_serial=2 array [ object path "/org/gnome/SessionManager/Inhibitor1686" ] $ gdbus call --session --dest org.gnome.SessionManager --object-path /org/gnome/SessionManager/Inhibitor1686 --method org.gnome.SessionManager.Inhibitor.GetAppId ('test',) $ gdbus call --session --dest org.gnome.SessionManager --object-path /org/gnome/SessionManager/Inhibitor1686 --method org.gnome.SessionManager.Inhibitor.GetReason ('manual idle inhibit',) $ gdbus call --session --dest org.gnome.SessionManager --object-path /org/gnome/SessionManager/Inhibitor1686 --method org.gnome.SessionManager.Inhibitor.GetFlags (uint32 12,) 12=4(suspend) + 8(idle) 5) When testing, I can inhibit for 70 seconds, idle timeout being 60 (1 minute). After these 70 seconds pass, the screen locks. 6) Regarding Chrome, this is the information I get when querying the inhibitor: GetAppId: ('/usr/bin/google-chrome-stable',) GetReason: ('Uploading data to 10.200.0.163',) GetFlags: (uint32 4,) The flags just inhibits suspend, not locking or entering powersaving mode. This inhibitor seems to stay for 10-15 seconds, then goes away for another 30-60 seconds. The screen NEVER locks when this tab is open. No matter the inhibitor is present or not. I'm not sure where to go on. If it's a Chrome bug it must be using other mechanisms to prevent the idle timeout. Any ideas on what to look for? Julian. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1600622/+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
