Ubuntu Linux ships with a highly capable, built-in screen reader called “Orca” to assist visually impaired users. By default, the GNOME desktop environment binds the activation of this screen reader to the Alt + Super + S keyboard shortcut (the Super key is the Windows/Command key on your keyboard).
If you are a developer or a power user who utilizes complex keyboard chords for IDEs, terminal multiplexers, or custom window managers, accidentally brushing this specific three-key combination will instantly activate Orca. Suddenly, a robotic voice will begin aggressively narrating every single mouse movement, key press, and window transition you make, severely interrupting your workflow.
If you do not require accessibility tools, you can completely unbind this shortcut to ensure Orca never accidentally turns on.
How to Disable the Screen Reader Shortcut
You can remove the keybinding directly from the GNOME Settings panel.
- Open the Settings app in Ubuntu.
- In the left-hand sidebar, click on Keyboard.
- Scroll down the right pane until you see the section labeled “Keyboard Shortcuts” and click on View and Customize Shortcuts.
- A new window will open. Scroll down and click on the Accessibility category.
- Look for the item labeled Turn screen reader on or off. (It will display
Alt+Super+Snext to it). - Click on this item to bring up the “Set Shortcut” dialog.
- Instead of typing a new combination, simply press the Backspace (or Delete) key on your keyboard. This will clear the shortcut and label it as “Disabled.”
- Click the Set button in the top right corner of the dialog.
The Orca screen reader is now safely decoupled from your keyboard. You can freely use Alt+Super+S for any other custom macro in your code editor without ever worrying about a robotic voice suddenly narrating your screen.