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Desktop tearing kubuntu 12.04 with Intel HD

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http://askubuntu.com – Experiencing nasty tearing on desktop, when moving windows around, scrolling browser, playing video with mplayer/vlc Kubuntu 12.04.1 fully updated OpenGL vendor string: Tungsten Graphics, Inc OpenGL renderer string: Mesa DRI Intel(R) Ivybridge Mobile OpenGL version string: 3.0 Mesa 8.0.4 OpenGL shading language version string: 1.30 _ sudo lshw -c video *-display description: VGA compatible controller product: Ivy Bridge Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 09 width: 64 b (HowTos)