My system shows some strange behaviour when playing movies.
It doesn't matter if it's a mpeg, flv, mp4, ogv, flv, whatever.,
it shows only correct in Totem and vlc player.
Dragon player, smplayer, and kplayer shows a transparent window that you can see right through the app
that's running behind it on the desktop.
i've searched in log files, can't find anything unusual.
did libtest and deptest, system is healthy.
I did noticed something: this behaviour started a few days ago, when i switched from AWN to Cairo-dock.
i'm running SL6 CoreCDX -X64 installed KDE (kde-base/kdebase-startkde-4.7.2), and is fully updated to current.
i thought i found the solution on Arch-Wiki.
Although it's strange, 'cause they talking about transparent smplayer in Gnome with Composite enabled.
i'm not running Gnome, but KDE instead. It works partially with SMplayer., No more transparent window, but now it doesn't play. you have to manually choose a file from pull-down menu.
Dragon-player and Kplayer still shows a transparent window.
Transparent SMPlayer in Gnome with Composite enabled
Have you noticed the transparent screen of smplayer when you are using compiz and maybe cairo-dock? Well it’s ridiculous that when you open your videos using SMplayer you can just hear audio and no video! Here’s how you fix this: [copy paste into terminal]