1314907 - Firefox prevent the screen from sleeping for no obvious reason

Status: RESOLVED WORKSFORME

(Core :: Audio/Video: Playback, defect)

Description

[Tim Guan-tin Chien [:timdream] (please needinfo)]

My Mac sometime failed to sleep when I put it on idle, after inspecting the result of |pmset -g| I found this:

$ pmset -g
Active Profiles:
Battery Power		0
AC Power		-1*
Currently in use:
 standbydelay         10800
 standby              1
 womp                 1
 halfdim              1
 hibernatefile        /var/vm/sleepimage
 powernap             1
 networkoversleep     0
 disksleep            10
 sleep                1
 autopoweroffdelay    14400
 hibernatemode        3
 autopoweroff         1
 ttyskeepawake        1
 displaysleep         1 (display sleep prevented by plugin-container, plugin-container, plugin-container, plugin-container, firefox, firefox, plugin-container, plugin-container)
 acwake               0
 lidwake              1

There were no video/audio playing at the time (I did watched a few YouTube clips in the session but I closed the tabs a long time ago) and there wasn't any tab with audio icon.

Can a silent video loop prevent the screen from sleeping? Can there be anything else?

If we couldn't change the behavior of the Web/Firefox, can we make it more obvious and controllable by the user?

(I am on Aurora 51 with multiple content processes)

Comment 1

[Tim Guan-tin Chien [:timdream] (please needinfo)]

Even if I close all the tabs and the window (without quitting Firefox), I still see this:

$ pmset -g
Active Profiles:
Battery Power		0
AC Power		-1*
Currently in use:
 standbydelay         10800
 standby              1
 womp                 1
 halfdim              1
 hibernatefile        /var/vm/sleepimage
 powernap             1
 networkoversleep     0
 disksleep            10
 sleep                1
 autopoweroffdelay    14400
 hibernatemode        3
 autopoweroff         1
 ttyskeepawake        1
 displaysleep         1 (display sleep prevented by firefox, firefox, firefox, firefox, firefox, firefox)
 acwake               0
 lidwake              1

Comment 2

[Andrew Overholt [:overholt]]

Does the screen turn off? Is it just not suspending? Have you encountered anyone else who can reproduce?

(I've changed the branch to 51 since when you reported it, that's what was on aurora; please correct me if that's incorrect)

Comment 3

[Tim Guan-tin Chien [:timdream] (please needinfo)]

(In reply to Andrew Overholt [:overholt] from comment #2)
> Does the screen turn off? Is it just not suspending? Have you encountered
> anyone else who can reproduce?

I has not happen to me for a week, but I don't know if it's because I have closed a few more tabs. I don't recall anyone talk to me about the same issue.

> (I've changed the branch to 51 since when you reported it, that's what was
> on aurora; please correct me if that's incorrect)

Thanks.

Comment 4

[Tim Guan-tin Chien [:timdream] (please needinfo)]

(In reply to Andrew Overholt [:overholt] from comment #2)
> Does the screen turn off? Is it just not suspending? Have you encountered
> anyone else who can reproduce?

The screen does not turn off.

Comment 5

[Milan Sreckovic [:milan] (needinfo for best results)]

Let us know if this comes back.