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When I restart the Ubuntu system, slack application is not visible in the top right corner.

How to solve that?

Volker Siegel
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Saclt7
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2 Answers2

11

Restart GNOME shell. Press Alt + F2, and then type r in the pop-up Run a Command window and press Enter to restart GNOME Shell without interfering with any already opened windows.

Alternatively you can run the following to command restart GNOME Shell by replacing the running window manager:

Open the terminal and type:

setsid gnome-shell --replace

Press Enter again before you close the terminal.

setsid gnome-shell --replace restarts the GNOME shell without closing any open applications. For example, after restarting the GNOME shell an existing Firefox window and all of its existing tabs would remain open.

karel
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2

On Ubuntu 18.04, be cautious using:

setsid gnome-shell --replace

If you lock your computer, you will be unable to log back in. You will be stuck with an Authentication Incorrect error and will need to do a hard reset due to your keyboard not working for the login screen (no way to get to a shell either).

On Ubuntu 18.04, you can run:

killall -HUP gnome-shell

This will restart this as expected and has no negative affects

Jeremy
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