Bug 477994

Summary: "phantom" composited frame of QT4 windows when the program has a notification-area icon (Amarok)
Product: [Fedora] Fedora Reporter: Gian Paolo Mureddu <gmureddu>
Component: metacityAssignee: Søren Sandmann Pedersen <sandmann>
Status: CLOSED WONTFIX QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 10CC: kem, otaylor, sandmann
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Hardware: x86_64   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2009-11-16 21:43:27 UTC Type: ---
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Description Flags
Picture showing a "phantom" composited window frame, where the frame is composited, but no window is shown. none

Description Gian Paolo Mureddu 2008-12-27 02:17:09 UTC
Created attachment 327876 [details]
Picture showing a "phantom" composited window frame, where the frame is composited, but no window is shown.

Description of problem:
Some QT4/KDE4 applications that make use of the notification-area (such as Amarok), while used in GNOME with Metacity as the composite-manger, and composite enabled, there is a "composited frame" with the drop shadow of an "invisible window" (screenshot)

Version-Release number of selected component (if applicable):
metacity-2.24.0-2.fc10.x86_64
nodoka-metacity-theme-0.3.90-2.fc10.noarch
qt-x11-4.4.3-6.fc10.x86_64
qt-4.4.3-6.fc10.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Start a GNOME session, install gconf-editor.
2. Enable Metacity as the compositor.
3. Start a KDE4 application that makes use of the notification-area (like Amarok)
  
Actual results:
There is an area that a window would take up which is drawn composited, though there is no window frame (see screenshot)

Expected results:
The desktop to remain clean when a window frame is not meant to be shown (not composited).

Comment 1 Owen Taylor 2009-11-16 21:43:27 UTC
We don't support the metacity compositing manager; there's no UI to enable it and we don't see it as being an interesting long-term direction for compositing; if it still happens with F12 you might want to file a bug against Metacity upstream.