https://bugs.freedesktop.org/show_bug.cgi?id=52467
--- Comment #5 from Alexandre Demers alexandre.f.demers@gmail.com 2012-07-25 16:31:41 PDT --- I would consider having a look at bug 43655, it might be related. Could you try workaround proposed in comment 8 (bug 43655#c8) or comment 13 (bug 43655#c13)?