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[Bug 1330405] Re: Unity top panel turns transparent with dual screen. Garbage shadow leftovers appear.

 

Same deal here. 14.04.1, fully updated, etc. Running on a Dell Latitude
E7440 that even came with Ubuntu on it. If I plug in a second display
after the system is booted, the top panel on the secondary monitor goes
transparent. If I boot the system up with the monitor plugged in, no
issue.

If I issue a restart to unity (ALT + F2, unity --replace), then it comes
back fine.

This does not happen if your panel is default transparency, though it
does happen if the transparency of the panel has been adjusted (at least
in my experience).

** Attachment added: "dualscreen2.png"
   https://bugs.launchpad.net/unity/+bug/1330405/+attachment/4298631/+files/dualscreen2.png

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https://bugs.launchpad.net/bugs/1330405

Title:
  Unity top panel turns transparent with dual screen. Garbage shadow
  leftovers appear.

Status in Unity:
  New
Status in unity package in Ubuntu:
  Confirmed

Bug description:
  To reproduce this problem using Ubuntu 14.04:

  1- Reduce unity transparency to minimum (I did this using Unity tweak)
  2- Connect second screen. External screen is the main one, with unity launcher;
  3- Maximize a window in the laptop screen (non main).
  4- Drag the window out of maximization.

  The result is that the panel background will become 100% transparent.
  The text from the window title will have disappeared, but a black
  shadow will be left in it's place.

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