So that means mesa 8.0.5 causes this problem? Have you reported that in our issue tracker, or theirs? If not, please do. On May 24, 2014, at 8:29 AM, petr.2006 <petr.2006 at centrum.cz> wrote: > I succeeded to downgrade to > mesa @8.0.4_3+python27 > and it works again. > Thank you for help. > Petr