[v4.7-rc5] i915: ERROR (CPU pipe|PCH transcoder) A FIFO underrun

From	Sedat Dilek <sedat.dilek@gmail.com>
Newsgroups	linux.kernel
Subject	[v4.7-rc5] i915: ERROR (CPU pipe\|PCH transcoder) A FIFO underrun
Date	2016-06-27 08:40 +0200
Message-ID	<rOyn7-53m-7@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Hi Daniel,

I had already reported this issue in a email-thread called
"[v4.6-10530-g28165ec7a99b] i915: *ERROR* "CPU pipe/PCH transcoder" A
FIFO underrun".

This is still happening here on Sandybridge (and Ivybridge GPU
reported by Chris Bainbridge).
I have updated the bug-report in [1].

Chris B. reports in the BR:

"Bisect result:

ed4a6a7ca853253f9b86f3005d76345482a71283 is the first bad commit
commit ed4a6a7ca853253f9b86f3005d76345482a71283
Author: Matt Roper <matthew.d.roper@intel.com>
Date:   Tue Feb 23 17:20:13 2016 -0800

    drm/i915: Add two-stage ILK-style watermark programming (v11)"

Any news on that issue?

Regards,
- Sedat -

[1] https://bugs.freedesktop.org/show_bug.cgi?id=95736

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[v4.7-rc5] i915: *ERROR* (CPU pipe|PCH transcoder) A FIFO underrun Sedat Dilek <sedat.dilek@gmail.com> - 2016-06-27 08:40 +0200

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