Ubuntu
gtk+3.0 package

  1. Bug #1508357
  2. Comment #4

Comment 4 for bug 1508357

Revision history for this message
Marco Trevisan (Treviño) (3v1n0) wrote :

This happens because unity (compiz) doesn't advertize to support _GTK_FRAME_HINTS (as we don't), so gtk3 doesn't set up an rgba surface for tooltips and other client-side decorated windows (such as the ones with headerbar, to be fixed differently).

However in unity we do support rgba surfaces, and so to get proper transparent corners we need to force this.