[all variants] libva-intel-vaapi-driver @ Kubuntu 12.04 turned my system very slow

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http://ubuntuforums.org – Hi all, After installing Kubuntu 12.04 & bunch of additional packages to my i5-2500T HTPC (with integrated Intel HD Graphics 2000) my system became totally unusable slow. After boot the system was OK for a while, but then at some point KDE become very slow. (TTY1 & SSH connections worked normally without therrible lag) After 2h of thinking (& rebooting several times) I realised that the probem always started after I played some video (e.g. with VLC). That gave me clue that "maybe" the package libva-intel-vaapi-driver (/usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so) (Hardware)