Alt+F4 doesn't work after restarting unity

[Michał Sawicz]

After I restart unity (unity --replace) due to some visual glitches I reported in another bug, Alt+F4 does not work any more.

When in a terminal, pressing Alt+F4 results in "OS" typed into the terminal.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity 7.1.2+14.04.20140313-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic x86_64
NonfreeKernelModules: nvidia wl
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CurrentDesktop: Unity
Date: Sat Mar 15 12:29:06 2014
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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

[scrawl (scrawl-deactivatedaccount)]

I confirm the bug. This happened to me after I typed "compiz --replace" in the terminal.

[Stephen Michalski (zerodroprate)]

I am also experiencing this problem after restarting unity from the command dialog in Dash.

[Alex Baggott (alex-baggott)]

I'm unable to reproduce this behaviour in 15.10, so I think this bug has been fixed. This still needs to be confirmed for Trusty.

[snapy (sdfjsfjaei-hans)]

I still have this bug in 15.10

[Michael Kogan (michael-kogan)]

Using Manjaro Xfce with Compiz 0.9.13.1 as window manager and seeing this bug. Deactivating and again activating the key binding in the CCSM settings (General > Key bindings) "solves" the problem.

[cazacugmihai (cazacugmihai)]

In Ubuntu 18.04 with Unity 7.5.0 I have to use the solution provided by Michael (see #7 - https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1292833/comments/7).

[Ben Fenner (benfenner)]

Linux Mint here, experiencing this same problem after running `compiz --replace ccp`.
So this bug has been around for 6+ years? O_O

[Ben Fenner (benfenner)]

My workaround in Linux Mint 20.1 MATE was to add a Keyboard shortcut.
Alt+F4 runs this command:
wmctrl -c :ACTIVE:

[hexion (hexium)]

I can also reproduce this issue on 22.04.3 LTS.

The workaround in #7 works, but I found a better workaround. Simply run compiz --replace once more and Alt+F4 is back without the need to go into CCSM nor do anything else.

Eg)
** compiz session, Alt+F4 works.
** compiz --replace, Alt+F4 no longer works
** compiz --replace (once again), Alt+F4 works again.

I hope this helps someone, until the bug is fixed. If it gets fixed.

[Khurshid Alam (khurshid-alam)]

@hexion

It's better to file a new bug on this. But install compizconfig-settings-manager. Open it, under preference , check if unity is selected or not. Also check if it is pesisted after reboot.