From Fedora Project Wiki
Description
This use case describes the scenario of adding an extra monitor while logged in
How to test
- Log in with a single monitor
- Plug in an extra monitor. This can be done in several ways:
- Plug an external monitor directly into the laptop
- Plug an external monitor into the docking station that the laptop is docked to
- Dock the laptop into a docking station that has an extra monitor plugged in
- Configure the desktop to use the new monitor. This can be done in several ways:
- Use the 'display' hotkey (bound to Fn-F7 or a similar key combination on many laptops). Use that key to cycle through predefined monitor configurations
- Open gnome-display-properties (available in the menus under System → Preferences → Display). Use the 'Detect Monitors' button.
- When 'Show displays in panel' is checked in gnome-display-properties, clicking on the displays statusicon.
Expected Results
Note that we ask for you to judge whether the system behaviour is 'reasonable' or not, without prescribing the exact outcome. If some aspect of the system behaviour is surprising or confusing to you, it is probably worth pointing out.
- The desktop should adapt to the new monitor.
- The panels should not be stretched across monitors, and must not appear in the middle of the screen
- The desktop background should adapt to the new screen dimension - depending on the current background image, that might cause a different image to be displayed. E.g the default F11 background shows a lion in dual-monitor configurations, but not when only a single monitor is used.
- If you have used the current combination of monitors together before, the desktop should remember the last configuration and reestablish it upon login. E.g. if you had the external monitor on top of the laptop panel, that configuration should be remembered, even if you have used the laptop without the external monitor in the meantime.