Hello all,
I’ve been ‘playing’ with opensuse lately on my laptop, with no previous linux experience. (ms since dos)
Last night I installed 12.2, it worked fine, then I followed this guide http://forums.opensuse.org/content/127-multimedia-restricted-formats-installation-guide-12-2.html
This caused terminal to ask about which version to keep twice: (maybe not related to problem)
zypper in libdvdcss2 vlc libxine1-codecs k3b-codecs ffmpeg lame gstreamer-0_10-ffmpeg gstreamer-0_10-plugins-bad gstreamer-0_10-plugins-ugly gstreamer-0_10-plugins-ugly-orig-addon w32codec-all MPlayer smplayer gstreamer-0_10-plugins-good libxine1 libdvdplay0 libdvdread4 libdvdnav4 xine-ui libmad0 ffmpeg sox libxvidcore4 xvidcore libavcodec52 libavdevice52 libvlccore4 libvlc5 lsb pullin-flash-player flash-player gstreamer-0_10-ffmpeg gstreamer-0_10-fluendo-mp3 gstreamer-0_10-fluendo-mpegdemux gstreamer-0_10-fluendo-mpegmux gstreamer-0_10-plugins-base gstreamer-0_10-plugins-good-extra k3b vlc-aout-pulse libquicktime0 gstreamer-0_10-plugins-bad-orig-addon gecko-mediaplayer
After restart I have massive lag, kwin using 100% cpu. killing the process seemed like good idea, but then I noticed that it was linux equivalent of ‘explorer.exe’ 
Reboot didn’t help either.
It was fresh install so easiest fix was installing 12.2 again, which I did.
But now the questions:
What would have been the right way to deal with problem?
What had happened if I uninstalled kwin in yast? (would if offer some older version instead or just remove it and leave system ‘broken’)