alt-tab doesnt work anymore after upgrade to 21.10

Thanks for the bug report.

Firstly please run:

  gsettings get org.gnome.desktop.wm.keybindings switch-applications
  gsettings get org.gnome.desktop.wm.keybindings switch-windows

and tell us what each command returns. Curiously I get different answers on 21.10 and 22.04...

Please also remove these extensions from your system so we can be sure they are not a factor:

  '<email address hidden>',
  '<email address hidden>',
  '<email address hidden>',
  '<email address hidden>'

and then log in again.

Thanks for your fast response - and sorry for the delay on my side.

On Mon, Nov 15, 2021 at 6:45 AM Daniel van Vugt
<email address hidden> wrote:
> ...
> gsettings get org.gnome.desktop.wm.keybindings switch-applications
> gsettings get org.gnome.desktop.wm.keybindings switch-windows

Results:

$ gsettings get org.gnome.desktop.wm.keybindings switch-applications
['<Super>Tab']

$ gsettings get org.gnome.desktop.wm.keybindings switch-windows
['<Alt>Tab']

> Please also remove these extensions from your system so we can be sure
> they are not a factor:
>
> '<email address hidden>',
> '<email address hidden>',
> '<email address hidden>',

These are standard extensions which come with the package
gnome-shell-extensions.
I uninstalled them anyway, as well as this one:

> '<email address hidden>'

Which was to fix a bug that Nextcloud didn't show up in the appindicator.

It was marked as broken in the gnome extensions management tool but
also turned off.
I removed it additionally.

After logging out and back in, alt-tab worked again.

After installing gnome-shell-extensions back, logging out and in
again, it worked, too.
So, to me it looks like I dont have that problem anymore, thanks!

Probably gnome shell should be somehow more robust so and outdated
extension that is even recognized as such and disabled whouldn't break
other unrealted functionality, but I guess that's hard to debug.

Thanks a lot.

Henning

Unfortunately that doesn't completely prove the extension was to blame.

Strictly speaking, the GNOME developers would prefer everyone avoided extensions. But it would create more complaints to disallow extensions so they are allowed, and they might break your system.

Hi all,

This also affects me, starting with the update to 21.04 and continuing with the 21.10 update. alt&tab does nothing, super&tab switches between applications. I haven't installed any Gnome extensions.

~$ gsettings get org.gnome.desktop.wm.keybindings switch-applications
['<Super>Tab']

~$ gsettings get org.gnome.desktop.wm.keybindings switch-windows
['<Alt>Tab']

Thank you for the work!!

-Joe

maybe it is interesting that, before i got it working under wayland as I want it to be, I reverted back for a while to xorg.

It was after I got the hints here to uninstall extensions, that I did that, and only then got back to the wayland session.

I dont know why it should be, but it could also be that intermittently using xorg might have fixed something, even though it sound strange.+

The information about the extensions is interesting... and strange.
People need their desktop environments to do specific things.
The need for more extensions is mainly since Gnome made huge changes and introduced gnome-shell, which had many things of the previous gnome missing.
So it's natural and also necessary for many users to get that functionality back.

I normally dont install obscure extensions from the internet - but the ones I had solved also another problem. The fact that an update resulted in the nextcloud application being not working well anymore.
If I install extensions from regular ubuntu packages I am assuming they are fine to use.

I come from https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1932328

For me, they look related.
Before using Thunderbird (or before it mis-behaves), Alt-TAB works.

When Thunderbird goes wrong, Alt-TAB stops working.

Maybe related - but I had this thunderbird issue, too, but not anymore since upgrading to 21.10.

I am on 21.10 (fully updated) and the Thunderbird issue continues.

That's correct. The Thunderbird issue is not fixed yet in any Ubuntu version (tracked in bug 1932328).

Thank you for reporting this bug to Ubuntu.

Ubuntu 21.10 (impish) reached end-of-life on July 14, 2022.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in.