[Bug 100219] CPU pipe A FIFO underrun

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100219

--- Comment #5 from udo at hypervisor.org ---
It happens when booting the Linux kernel, so I guess libdrm is not even
involved. I tried it with Linux 4.11.3 and drm master b6f450e0.

Result is still the same.

[    1.635652] tsc: Refined TSC clocksource calibration: 2691.258 MHz
[    1.635668] clocksource: tsc: mask: 0xffffffffffffffff max_cycles:
0x26cafc29fa8, max_idle_ns: 440795270837 ns
[    1.886585] [drm:intel_cpu_fifo_underrun_irq_handler] *ERROR* CPU pipe A
FIFO underrun
[    1.887064] [drm:intel_set_pch_fifo_underrun_reporting] *ERROR* uncleared
pch fifo underrun on pch transcoder A
[    1.887070] [drm:cpt_irq_handler] *ERROR* PCH transcoder A FIFO underrun

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