linux-kernel - Re: [Intel-gfx] [v4.6-10530-g28165ec7a99b] i915: *ERROR* "CPU pipe/PCH transcoder" A FIFO underrun

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Message-ID: <CAP-bSRZu72-66sUn_vbAFNjsb1-y0=SeDcXpoKVGB7oAiqMaEQ@mail.gmail.com>
Date:	Fri, 27 May 2016 09:19:30 +0100
From:	Chris Bainbridge <chris.bainbridge@...il.com>
To:	sedat.dilek@...il.com
Cc:	Daniel Vetter <daniel.vetter@...ll.ch>,
	intel-gfx <intel-gfx@...ts.freedesktop.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [Intel-gfx] [v4.6-10530-g28165ec7a99b] i915: *ERROR* "CPU
 pipe/PCH transcoder" A FIFO underrun

On 25 May 2016 at 08:31, Sedat Dilek <sedat.dilek@...il.com> wrote:
> Hi Daniel,
>
> with latest Linus Git I see this with my Intel SandyBridge GPU...
>
> [   17.629014] [drm:intel_cpu_fifo_underrun_irq_handler [i915]]
> *ERROR* CPU pipe A FIFO underrun
> [   17.630652] [drm:intel_set_pch_fifo_underrun_reporting [i915]]
> *ERROR* uncleared pch fifo underrun on pch transcoder A
> [   17.630685] [drm:intel_pch_fifo_underrun_irq_handler [i915]]
> *ERROR* PCH transcoder A FIFO underrun

Guessing this is https://bugs.freedesktop.org/show_bug.cgi?id=95736