Bug#1071717: gnome-settings-daemon: gsd-media-keys fires D-Bus MPris PlayPause message randomly

[Andres Gomez Garcia]

Package: gnome-settings-daemon
Version: 43.0-4
Severity: important

Dear Maintainer,

I've some keyboard key combination mapped for doing the PlayPause
action.

Rarely, when I'm using the headphones for other use than music, for
example, attending a confcall, the music playback is activated
randomly.

After inspection with dbus-monitor, I see this message causing the
problem:

$ dbus-monitor 'interface=org.mpris.MediaPlayer2.Player'
signal time=1716534223.839734 sender=org.freedesktop.DBus -> destination=:1.6533 serial=2 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameAcquired
   string ":1.6533"
signal time=1716534223.839830 sender=org.freedesktop.DBus -> destination=:1.6533 serial=4 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameLost
   string ":1.6533"
method call time=1716534225.234537 sender=:1.78 -> destination=:1.621 serial=2411 path=/org/mpris/MediaPlayer2; interface=org.mpris.MediaPlayer2.Player; member=PlayPause

The sender is gsd-media-keys:

$ busctl --user | grep 1.78
:1.78                                           3492 gsd-media-keys  tanty :1.78         user at 1000.service -       -
org.gnome.SettingsDaemon.MediaKeys              3492 gsd-media-keys  tanty :1.78         user at 1000.service -       -

Oddly enough, this happens more often when using some wireless
headphones (no bluetooth, but with a proprietary USB dongle
transmitter) and I'm far from the computer.

-- System Information:
Debian Release: 12.4
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500,
'stable-debug'), (500, 'proposed-updates-debug'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.5.0-0.deb12.1-amd64 (SMP w/4 CPU threads; PREEMPT)
Locale: LANG=en_IE.UTF-8, LC_CTYPE=en_IE.UTF-8 (charmap=UTF-8),
LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gnome-settings-daemon depends on:
ii  gnome-settings-daemon-common  43.0-4
ii  gsettings-desktop-schemas     43.0-1
ii  libasound2                    1.2.8-1+b1
ii  libc6                         2.36-9+deb12u7
ii  libcairo2                     1.16.0-7
ii  libcanberra-gtk3-0            0.30-10
ii  libcanberra0                  0.30-10
ii  libcolord2                    1.4.6-2.2
ii  libcups2                      2.4.2-3+deb12u5
ii  libfontconfig1                2.14.1-4
ii  libgcr-base-3-1               3.41.1-1+b1
ii  libgdk-pixbuf-2.0-0           2.42.10+dfsg-1+b1
ii  libgeoclue-2-0                2.6.0-2
ii  libgeocode-glib-2-0           3.26.3-6
ii  libglib2.0-0                  2.74.6-2+deb12u2
ii  libgnome-desktop-3-20         43.2-2
ii  libgtk-3-0                    3.24.38-2~deb12u1
ii  libgudev-1.0-0                237-2
ii  libgweather-4-0               4.2.0-2
ii  libmm-glib0                   1.20.4-1
ii  libnm0                        1.42.4-1
ii  libnotify4                    0.8.1-1
ii  libnspr4                      2:4.35-1
ii  libnss3                       2:3.87.1-1
ii  libpam-systemd [logind]       252.19-1~deb12u1
ii  libpango-1.0-0                1.50.12+ds-1
ii  libpangocairo-1.0-0           1.50.12+ds-1
ii  libpolkit-gobject-1-0         122-3
ii  libpulse-mainloop-glib0       16.1+dfsg1-2+b1
ii  libpulse0                     16.1+dfsg1-2+b1
ii  libspa-0.2-bluetooth          1.0.5-1~bpo12+1
ii  libupower-glib3               0.99.20-2
ii  libwacom9                     2.6.0-1
ii  libwayland-client0            1.21.0-1
ii  libx11-6                      2:1.8.4-2+deb12u2
ii  libxext6                      2:1.3.4-1+b1
ii  libxfixes3                    1:6.0.0-2
ii  libxi6                        2:1.8-1+b1
ii  pipewire-audio                1.0.5-1~bpo12+1

Versions of packages gnome-settings-daemon recommends:
ii  iio-sensor-proxy   3.0-2
ii  pipewire-audio     1.0.5-1~bpo12+1
ii  pkexec             122-3
ii  x11-xserver-utils  7.7+9+b1

Versions of packages gnome-settings-daemon suggests:
pn  usbguard  <none>

-- no debconf information

-- 
Br,

Andres