Starting with GNOME 3.6, the accessibility stack has been highly integrated into the core, so users that need any assistive technology can use GNOME right from the start.
To speed up testing process a little bit, enable accessibility menu in "User menu" - "Settings" - "Universal Access" - "Always Show Universal Access Menu".
How to test
- Toggle any of the settings in the accessibility menu, in particular try zoom, screen reader and screen keyboard.
- Open "User Menu" - "Settings" - "Universal Access", and use the settings in the zoom options dialogue. Try also other options.
- Toggle the "Typing Assist" - "Enable by keyboard" switch on the typing tab and hold down the Shift key for at least 8 seconds.
- All accessibility functions should turn on and work in response to the menu toggles (no re-login necessary).
- All zoom options should have the expected effect and the zoom should not make the system unstably slow. Other options should behave as expected.
- A notification should tell you that slow keys were turned on, and offer you to turn it off or keep it.