I'm not sure if I'm having the same issue but Firefox doesn't prevent screensaver from activating on my system. I can reproduce this on both ESR and the latest Nightly.
``` [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::WakeLockTopic() created video-playing [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::SwitchToNextWakeLockType() WakeLockType Initial [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] switched to WakeLockType FreeDesktopScreensaver [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5cfbcafa00] WakeLockListener topic video-playing state locked-foreground request lock 1 [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::InhibitScreensaver() state uninhibited [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::ProcessNextRequest(): recent state uninhibited [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::ProcessNextRequest(): next state inhibited [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::SendInhibit() WakeLockType FreeDesktopScreensaver [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] InhibitFreeDesktopScreensaver() [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::DBusInhibitScreensaver() [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::DBusInhibitScreensaver() proxy created [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::DBusInhibitFailed() Inhibit call failed : GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.ScreenSaver was not provided by any .service files [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::DBusInhibitFailed(1) [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::SwitchToNextWakeLockType() WakeLockType FreeDesktopScreensaver [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] switched to WakeLockType FreeDesktopPower [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::SendInhibit() WakeLockType FreeDesktopPower [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] InhibitFreeDesktopPower() [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::DBusInhibitScreensaver() [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::DBusInhibitScreensaver() proxy created [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::DBusInhibitSucceeded(), mInhibitRequestID 16 [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::ProcessNextRequest(): recent state inhibited [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::ProcessNextRequest(): empty queue [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5cfbcafa00] WakeLockListener topic video-playing state unlocked request lock 0 [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::UnInhibitScreensaver() state inhibited [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::ProcessNextRequest(): recent state inhibited [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::ProcessNextRequest(): next state uninhibited [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::SendUninhibit() WakeLockType FreeDesktopPower [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] UninhibitFreeDesktopPower() [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::DBusUninhibitScreensaver() request id 16 [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::DBusUninhibitScreensaver() proxy created [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::DBusUninhibitFailed() UnInhibit call failed : GDBus.Error:org.xfce.PowerManager.Error.CookieNotFound: Неверные данные [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::DBusUninhibitFailed() [Parent 13156: Main Thread]: D/LinuxWakeLock [7f5ce86424c0] WakeLockTopic::Shutdown() state inhibited ``` -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/2047262 Title: Firefox stopped inhibiting screensaver on video playback Status in Mozilla Firefox: Confirmed Status in firefox package in Ubuntu: Confirmed Bug description: Update (02/2024): With Firefox 122 on Ubuntu-Mate 23.10, screensaver/powermanager inhibition is completely broken even with Mozilla's .deb package. After a fresh start of firefox, screen saver is blocked properly when playing video but after opening/un-suspending a few tabs with video, inhibition stops working. I was unable to come up with reproducible scenario but after a few hours of browsing it usually stops working. Restarting firefox fixes the problem. The bug first appeared around August and affects both .deb and snap packages. Tested on Ubuntu-Mate 22.04.3, Xorg, both Pulseaudio and Pipewire (if that's relevant). I don't see any relevant msgs in xsession-errors or system logs. To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/2047262/+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
