[Bug 100219] [SNB] CPU pipe A FIFO underrun

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Jun 27 19:18:21 UTC 2017


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

Elizabeth <elizabethx.de.la.torre.mena at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |REOPENED

--- Comment #6 from Elizabeth <elizabethx.de.la.torre.mena at intel.com> ---
(In reply to udo from comment #5)
> 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

Hello, I'm changing the status to REOPEN since the problem seems to persist.
Thank you.

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