[Bug 94605] Flashing black screen ([drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Aug 12 13:18:05 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=94605

--- Comment #38 from Jimmy Merrild Krag <jimmy at kragenet.dk> ---
I'm pretty sure that this is what I am experiencing on a MacBook Pro 12,1.
Screen randomly goes black and comes back again. Afterwards I see
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO
underrun
or
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO
underrun
or both in dmesg.

Graphics is IntelĀ® Iris 6100 (Broadwell GT3) 
I'm on Ubuntu 16.04 with default kernel. Linux JMK-MBP 4.4.0-34-generic
#53-Ubuntu SMP Wed Jul 27 16:06:39 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

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