Ubuntu 13.4 64 Bit (same behaviour on 12.4).
- Laptop is off.
- An external screen is connected via VGA.
- I start the laptop (auto-login).
- Screen resolution is the highest for both the laptop screen and the external screen (that's exactly what I want).
- I press any key.
- Resolution changes to mirrored screens.
This happens only once per running (but sometimes after standby).
=> How to disable the resolution change after pressing a key?
Please tell me if you need more information!