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Ubuntu 13.4 64 Bit (same behaviour on 12.4).

  1. Laptop is off.
  2. An external screen is connected via VGA.
  3. I start the laptop (auto-login).
  4. Screen resolution is the highest for both the laptop screen and the external screen (that's exactly what I want).
  5. I press any key.
  6. 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!

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up vote 0 down vote accepted

This is "fixed" after reinstalling Ubuntu (I'm using Ubuntu 13.10 now). It might've been caused because my PC was upgraded all the way up from Ubuntu 10.4 to 13.4.

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