org.gnome.Shell.desktop[2331]: Window manager warning: "XF86RFKill" is not a valid accelerator

[dino99]

Get that error logged, and sometime a login loop.

There has been a change into GSD 3.25.2 about that key:
https://github.com/GNOME/gnome-settings-daemon/commit/248eb834f9d428a493457e26a8d2e3687ee576db

note: maybe i should have reported against mutter instead, no idea.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: gnome-settings-daemon 3.26.1-0ubuntu1
ProcVersionSignature: Ubuntu 4.13.0-15.16-generic 4.13.4
Uname: Linux 4.13.0-15-generic x86_64
ApportVersion: 2.20.7-0ubuntu2
Architecture: amd64
CurrentDesktop: GNOME
Date: Sun Oct 8 08:52:08 2017
EcryptfsInUse: Yes
SourcePackage: gnome-settings-daemon
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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

[Jeremy Soller (jackpot51)]

There are a couple things going on, that could be fixed by a Debian or Ubuntu maintainer:

- libxkbdcommon needs to be updated from 0.7.1 to 0.7.2. This introduces the RFKill key: https://lists.freedesktop.org/archives/wayland-devel/2017-August/034721.html

- x11-proto needs a new release. This commit added RFKill, but it is not in a release: https://cgit.freedesktop.org/xorg/proto/xproto/commit/?id=98a32d328e7195e12c38baa877917335bceffbaf

- Likely other X11 packages need to be rebuilt.

[Jeremy Soller (jackpot51)]

Attached is a test script that should trigger Airplane Mode in GNOME, but does not. The code in gnome-settings-daemon looks for XF86RFKill, but the key is not identified as such.

This is what xev reports from the script:

KeyPress event, serial 55, synthetic NO, window 0x2c00001,
    root 0x1ee, subw 0x0, time 2615499, (101,-17), root:(2297,336),
    state 0x10, keycode 255 (keysym 0x0, NoSymbol), same_screen YES,
    XLookupString gives 0 bytes:
    XmbLookupString gives 0 bytes:
    XFilterEvent returns: False

KeyRelease event, serial 55, synthetic NO, window 0x2c00001,
    root 0x1ee, subw 0x0, time 2615499, (101,-17), root:(2297,336),
    state 0x10, keycode 255 (keysym 0x0, NoSymbol), same_screen YES,
    XLookupString gives 0 bytes:
    XFilterEvent returns: False

[Jeremy Soller (jackpot51)]

Attached is an alternative script which sends KEY_WLAN, which does trigger Airplane Mode, as expected.

[Jeremy Soller (jackpot51)]

In artful and later, a number of kernel drivers send KEY_RFKILL - which is being ignored by the userspace handling code.

https://elixir.free-electrons.com/linux/v4.13.16/ident/KEY_RFKILL

[Sebastien Bacher (seb128)]

Is that still an issue in bionic or cosmic? If so do you know what needs to be changed in gnome-settings-daemon?

[Jeremy Soller (jackpot51)]

This particular issue as described no longer occurs. Instead, it should be tracked here:

https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1740894