cairo-dock-team team mailing list archive

[Luke <729970@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Binary package hint: cairo-dock

If cairo-dock is installed and has been run withing the same X session,
Kdenlive running under compiz, with XV video output  will display a
transparent monitor window, and no video, just transparency, until
playback stops.Other window managers with xv output from kdenlive will
give a blank monitor (background only) entirely during playback, just as
the entire frame is transparent under compiz.

 Using the X11 driver gives semi-transparent  (0<alpha<1) video with
transparent borders under compiz, normal video playback under window
managers other than compiz. Detaching the window returns the semi-
transparent playback as though compiz were running.   In all cases the
image returns to normal when playback stops.


This report is posted on the Kdenlive website:

http://www.kdenlive.org/forum/transparent-monitor-during-playback-
uninstall-cairo-dock-and-dependencies

"but the problem seems to be cause by cairo-dock. A number of other qt-
base applications have known problems with it, that this workaround
fixes:

Others apps based on Qt4 like VirtualBox, Skype, VLC
(for VLC, there was a bug only if the option 'Integrate video in interface' is enabled and vlc devs have added this workaround into the application) 
It's the same problem that (S)MPlayer, so you can use this command in order to launch your application, e.g.:
export XLIB_SKIP_ARGB_VISUALS=1 && skype
But you can also make a little script:
Create a file with the extention ".sh" (launch_virtualbox.sh for example)
Add these two lines :
export XLIB_SKIP_ARGB_VISUALS=1 
virtualbox
Change the right execution (Right clic on the file / Properties / Permissions / Execution => or directly :
chmod +x launch_virtualbox.sh
Use this file to execute this app.
Or edit the launcher and use a command like this one:
sh -c "env XLIB_SKIP_ARGB_VISUALS=1 kaffeine" "

Unfortunately, this does not help in kdenlive(replacing "kaffeine"
with"kdenlive"), where it has no effect and the transparency continues..

Both SMplayer and Kaffeine also report video playback issues when cairo-
dock is running:


https://bugs.launchpad.net/cairo-dock-core/+bug/472112  declares that the problem is in qt-but in that case, the bug is being reported to appear in  opengl mode. With kdenlive the bug appears under both opengl and cairo backends. I've tested both, restarting X between tests.

The only workaround I have found is to set cairo-dock not to start with
the session and start it only when  not using Kdenlive. To use kdenlive,
X must be restarted.  I just removed Docky so I could get rid of mono,
now this...

I am using cairo-dock_2.2.0~4-0ubuntu1 in Ubuntu Natty with compiz-
unity, gnome-shell, kde, and icewm sessions all installed and working.

** Affects: cairo-dock (Ubuntu)
     Importance: Undecided
         Status: New

-- 
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Dock Team, which is subscribed to cairo-dock in ubuntu.
https://bugs.launchpad.net/bugs/729970

Title:
  Cairo-dock running or having been run  corrupts Kdenlive monitor
  display

Status in “cairo-dock” package in Ubuntu:
  New

Bug description:
  Binary package hint: cairo-dock

  If cairo-dock is installed and has been run withing the same X
  session, Kdenlive running under compiz, with XV video output  will
  display a transparent monitor window, and no video, just transparency,
  until playback stops.Other window managers with xv output from
  kdenlive will give a blank monitor (background only) entirely during
  playback, just as the entire frame is transparent under compiz.

   Using the X11 driver gives semi-transparent  (0<alpha<1) video with
  transparent borders under compiz, normal video playback under window
  managers other than compiz. Detaching the window returns the semi-
  transparent playback as though compiz were running.   In all cases the
  image returns to normal when playback stops.

  
  This report is posted on the Kdenlive website:

  http://www.kdenlive.org/forum/transparent-monitor-during-playback-
  uninstall-cairo-dock-and-dependencies

  "but the problem seems to be cause by cairo-dock. A number of other
  qt-base applications have known problems with it, that this workaround
  fixes:

  Others apps based on Qt4 like VirtualBox, Skype, VLC
  (for VLC, there was a bug only if the option 'Integrate video in interface' is enabled and vlc devs have added this workaround into the application) 
  It's the same problem that (S)MPlayer, so you can use this command in order to launch your application, e.g.:
  export XLIB_SKIP_ARGB_VISUALS=1 && skype
  But you can also make a little script:
  Create a file with the extention ".sh" (launch_virtualbox.sh for example)
  Add these two lines :
  export XLIB_SKIP_ARGB_VISUALS=1 
  virtualbox
  Change the right execution (Right clic on the file / Properties / Permissions / Execution => or directly :
  chmod +x launch_virtualbox.sh
  Use this file to execute this app.
  Or edit the launcher and use a command like this one:
  sh -c "env XLIB_SKIP_ARGB_VISUALS=1 kaffeine" "

  Unfortunately, this does not help in kdenlive(replacing "kaffeine"
  with"kdenlive"), where it has no effect and the transparency
  continues..

  Both SMplayer and Kaffeine also report video playback issues when
  cairo-dock is running:

  
  https://bugs.launchpad.net/cairo-dock-core/+bug/472112  declares that the problem is in qt-but in that case, the bug is being reported to appear in  opengl mode. With kdenlive the bug appears under both opengl and cairo backends. I've tested both, restarting X between tests.

  The only workaround I have found is to set cairo-dock not to start
  with the session and start it only when  not using Kdenlive. To use
  kdenlive, X must be restarted.  I just removed Docky so I could get
  rid of mono, now this...

  I am using cairo-dock_2.2.0~4-0ubuntu1 in Ubuntu Natty with compiz-
  unity, gnome-shell, kde, and icewm sessions all installed and working.