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From: jon <jmoroney@hawaii.edu>
To: Jani Nikula <jani.nikula@linux.intel.com>,
	daniel.vetter@intel.com, Intel-gfx@lists.freedesktop.org
Subject: Re: PCH fifo underrun in 3.18
Date: Wed, 11 Feb 2015 10:19:20 -1000	[thread overview]
Message-ID: <54DBB948.6030000@hawaii.edu> (raw)
In-Reply-To: <87fvafwii6.fsf@intel.com>

Under what product should I submit the bug? dmr.debug=14 doesn't show much.

[jon@localhost]~% dmesg | grep drm
[    1.936241] [drm] Initialized drm 1.1.0 20060810
[    2.193043] [drm] Memory usable by graphics device = 2048M
[    2.193046] [drm] Replacing VGA console driver
[    2.199998] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    2.200000] [drm] Driver supports precise vblank timestamp query.
[    2.287949] [drm] GMBUS [i915 gmbus dpb] timed out, falling back to 
bit banging on pin 5
[    2.297614] fbcon: inteldrmfb (fb0) is primary device
[    2.576664] [drm:cpt_set_fifo_underrun_reporting] *ERROR* uncleared 
pch fifo underrun on pch transcoder A
[    2.576666] [drm:cpt_serr_int_handler] *ERROR* PCH transcoder A FIFO 
underrun


Jon

On 02/08/2015 11:18 PM, Jani Nikula wrote:
> On Fri, 30 Jan 2015, jon <jmoroney@hawaii.edu> wrote:
>> Just updated my thinkpad (x230, ivy bridge platform) to 3.18 and boot
>> fails with the error 'PCH fifo underrun'. This is under fedora 21 with
>> the fedora kernel version 3.18.3-201
> Please file a bug on [1], attach a dmesg from boot to the problem with
> drm.debug=14 module parameter set. Reference this thread.
>
> Thanks,
> Jani.
>
> [1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel
>

-- 
Jon

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  reply	other threads:[~2015-02-11 20:19 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-29 23:21 PCH fifo underrun in 3.18 jon
2015-02-07  1:11 ` Fwd: " jon
2015-02-08  1:27   ` Fwd: " jon
2015-02-09  9:18 ` Jani Nikula
2015-02-11 20:19   ` jon [this message]
2015-02-12  6:26     ` Jani Nikula
2015-02-12  6:27     ` Jani Nikula

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