Flash video fullscreen always in background. Found a solution for KDE.

On a blog post I found a solution for Adobe flash opening fullscreen video always in background behind Firefox.
Finding the window properties as described in the blog post did not work, but entering them manually as described in the comments was the way to go. So here i try to explain what to do in my own words (german in braces, so its easier for german readers ) :

In KDE 4.6 go to System-Settings (Systemeinstellungen), Window Behavior (Fensterverhalten), Window Rules (Fensterregeln).
Press “New”, and enter the following Values:

in tab Window (Fenster) ->
-> Description (Beschreibung): Flash fullscreen workaround (or some other usefull description)
-> Class (Fensterklasse): <unknown> <unknown>
(mention the space between the two <unknown>? Its mandatory. No spaces at the beginning or end)
-> exact match (Exakte übereinstimmung)
-> Match whole window class (Übereinstimmung mit gesamter Fensterklasse): checked

in tab Window extras (Fenster-Besonderheit) ->
-> Types (Fenster-Typen): select only normal window
-> Title (Fenstertitel): <unknown>
-> exact match (Exakte übereinstimmung)

in tab Workarounds (Provisorien) ->
-> Focus stealing prevention (Vorbeugung gegen Übernahme der Aktivierung) : force (erzwingen)

Thats it.
Now save that settings by pressing ok and apply, and now flash should open its fullscreen on top again.

  1. #1 by Janek Bevendorff on March 20, 2011 - 21:26

    Thanks for linking my article and I’m glad it helped you. I know from several people that they also had problems with auto detection of the window properties. Therefore I’ve updated the article and it now mentions a method to work around this issue.

    Best regards

  2. #2 by gunni on March 21, 2011 - 00:27

    Thanks for your update and for letting me know.

  3. #3 by Observer on May 16, 2011 - 19:20

    Thanks very much for this post. I was getting tired of using the ALT/TAB to get full screen using FLASH in full screen mode. This also works for KDE4.3 on Mandriva. You need to use Window Specific choice and then the rest. Note there is a space in as per instructions.

    Again, many thanks for this post.

    • #4 by gunni on May 17, 2011 - 00:03

      You have to thank Janek, thats the guy where i found this solution.

  4. #5 by Volker on May 22, 2011 - 21:00


    thanks a lot for this post! The workaround seems to work on my system.
    I can now watch fullscreen videos in the ARD-Mediathek again!


  1. Flash video fullscreen playing behind browser - Page 2
  2. Behoben: Vollbild bei Videos startete im Hintergrund | syve

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: