media keys stopped working: "Could not find accelerator for accel id 123"

[Marius Gedminas]

Today after an involuntary reboot (laptop battery ran down) I can no longer use media keys like Mute, Volume Up/Down, PrintScreen.

Every time I hit one of those keys I see messages like this in journalctl:

  Sau 26 11:53:30 platonas gnome-settings-[4972]: Could not find accelerator for accel id 123

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: gnome-settings-daemon 3.22.1-0ubuntu1
ProcVersionSignature: Ubuntu 4.8.0-34.36-generic 4.8.11
Uname: Linux 4.8.0-34-generic x86_64
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
ApportVersion: 2.20.3-0ubuntu8.2
Architecture: amd64
CurrentDesktop: GNOME
Date: Thu Jan 26 11:56:17 2017
InstallationDate: Installed on 2016-09-10 (138 days ago)
InstallationMedia: Ubuntu-GNOME 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160720)
SourcePackage: gnome-settings-daemon
UpgradeStatus: Upgraded to yakkety on 2016-10-15 (102 days ago)

[Marius Gedminas (mgedmin)]

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=839958 looks like a similar bug, except my custom shortcuts (e.g. <super>t to launch gnome-terminal) continue to work fine.

[Marius Gedminas (mgedmin)]

I restarted gnome-shell with Alt-F2 r and media keys started working.

This is probably a duplicate of one of the other "media keys randomly stop working sometimes" bugs. I was searching for the particular error message and found none -- probably because the error message itself was only added relatively recently (in gnome-settings-daemon 3.20), while upstream tries to figure out what causes this bug.

I haven't located the upstream bug report yet.

[Marius Gedminas (mgedmin)]

The upstream bug is https://bugzilla.gnome.org/show_bug.cgi?id=758302

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sebastien Bacher (seb128)]

the issue is fixed in the artful version