2015-04-27 10:29 GMT-05:00 Bráulio Bhavamitra <braulio@xxxxxxxxxxx>: > > Process 282 (sddm-greeter) of user 996 dumped core > [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* intel uncleared > pch fifo underrun on pch [drm:intel_pch_fifo_underrun_irq_handler [i915]] > *ERROR* PCH transcoder a FIFO underrun I think you're experiencing this bug (Google search found it): https://bugzilla.kernel.org/show_bug.cgi?id=79261 The fix that people are using (switch to another virtual console and back) seems to be exactly what you're seeing happen... hope this helps, -te
