I install the intel xorg driver from this ppa: https://launchpad.net/~glasen/+archive/intel-driver, ans the bug seems fixed, apart from a glitch with the rendering of shadows over XV.
I install the intel xorg driver from this ppa: https:/ /launchpad. net/~glasen/ +archive/ intel-driver, ans the bug seems fixed, apart from a glitch with the rendering of shadows over XV.