Comment 36 for bug 2047262

(In reply to Eugene San from comment #29)
> Around 6 months ago, I was experiencing similar issues when Firefox would randomly stop inhibiting screensaver after some time, closing/opening tabs or just starting/stopping playback in more than two tabs (concurrently or sequentially).
>
> Recently, with versions ~120 screensaver/lock inhibition stopped working completely.
>
> I tested on Ubuntu-Mate 22.04, 23.10, 24.04 and vanilla Ubuntu 24.04 and the problem persists.
> Firefox packages from Mozilla, Canonical PPA and Snap are all broken.
>
> Here is the log of setting the lock to 1 minute, starting playback, waiting till screensaver actiavtes, cancel the the screensaver and stop playback:
> ```
> MOZ_LOG="LinuxWakeLock:5" firefox
> libva info: VA-API version 1.19.0
> libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
> libva info: Found init function __vaDriverInit_1_18
> libva info: va_openDriver() returns 0
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::WakeLockTopic() created video-playing
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::SwitchToNextWakeLockType() WakeLockType Initial
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] switched to WakeLockType FreeDesktopScreensaver
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c333831aa30] WakeLockListener topic video-playing state locked-foreground request lock 1
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::InhibitScreensaver() Inhibited 0
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::SendInhibit() WakeLockType FreeDesktopScreensaver
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] InhibitFreeDesktopScreensaver()
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::DBusInhibitScreensaver() mWaitingForDBusInhibit 0 mWaitingForDBusUninhibit 0
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::DBusInhibitScreensaver() proxy created
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] 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 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::DBusInhibitFailed(1)
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::SwitchToNextWakeLockType() WakeLockType FreeDesktopScreensaver
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] switched to WakeLockType FreeDesktopPower
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::SendInhibit() WakeLockType FreeDesktopPower
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] InhibitFreeDesktopPower()
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::DBusInhibitScreensaver() mWaitingForDBusInhibit 0 mWaitingForDBusUninhibit 0
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::DBusInhibitScreensaver() proxy created
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::DBusInhibitFailed() Inhibit call failed : GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.PowerManagement was not provided by any .service files
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::DBusInhibitFailed(1)
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::SwitchToNextWakeLockType() WakeLockType FreeDesktopPower
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] switched to WakeLockType FreeDesktopPortal
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::SendInhibit() WakeLockType FreeDesktopPortal
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::InhibitFreeDesktopPortal() mWaitingForDBusInhibit 0 mWaitingForDBusUninhibit 0
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::InhibitFreeDesktopPortal(): inhibited, objpath to unihibit: /org/freedesktop/portal/desktop/request/1_111/t
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::DBusInhibitSucceeded(), mInhibitRequestID 0 mShouldInhibit 1
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c333831aa30] WakeLockListener topic video-playing state unlocked request lock 0
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::UninhibitScreensaver() Inhibited 1
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::SendUninhibit() WakeLockType FreeDesktopPortal
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::UninhibitFreeDesktopPortal() mWaitingForDBusInhibit 0 mWaitingForDBusUninhibit 0 object path: /org/freedesktop/portal/desktop/request/1_111/t
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::DBusUninhibitSucceeded() mShouldInhibit 0
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::UninhibitFreeDesktopPortal() Inhibit removed
> ```
> And this the log of simple start playback, stop playback
> ```
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c333831aa30] WakeLockListener topic video-playing state locked-foreground request lock 1
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::InhibitScreensaver() Inhibited 0
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::SendInhibit() WakeLockType FreeDesktopPortal
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::InhibitFreeDesktopPortal() mWaitingForDBusInhibit 0 mWaitingForDBusUninhibit 0
> [Parent 7830: Main Thread]: D/LinuxWakeLock [7c3313712b00] WakeLockTopic::InhibitFreeDesktopPortal(): inhibited, objpath to unihibit: /org/freedesktop/portal/desktop/request/1_111/t/1041562613
> ```

Forgot to add: Other browsers like Chrome, work as expected.