linux-kernel - Re: [3.14.0-rc4] regression: drm FIFO underruns

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Message-ID: <CAKMK7uG20sF403PJcmWTD=kPF9seV4sXZpp9_hEq3LvV3kK5Hg@mail.gmail.com>
Date:	Fri, 9 May 2014 14:22:44 +0200
From:	Daniel Vetter <daniel.vetter@...ll.ch>
To:	Jörg Otte <jrg.otte@...il.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Dave Airlie <airlied@...hat.com>,
	David Airlie <airlied@...ux.ie>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	intel-gfx <intel-gfx@...ts.freedesktop.org>
Subject: Re: [3.14.0-rc4] regression: drm FIFO underruns

Adding mailing lists.

Jörg, can you please boot with drm.debug=0xe, reproduce the issue and
then attach the complete dmesg? Please make sure that the dmesg
contains the boot-up stuff too.

Thanks, Daniel

On Mon, May 5, 2014 at 9:51 AM, Jörg Otte <jrg.otte@...il.com> wrote:
> I still have FIFO underruns in drm:
> [drm:ivb_err_int_handler] *ERROR* Pipe B FIFO underrun
> [drm:cpt_serr_int_handler] *ERROR* PCH transcoder A FIFO underrun
> [drm:cpt_serr_int_handler] *ERROR* PCH transcoder B FIFO underrun
>
> which I already reported here:
> https://lkml.org/lkml/2014/4/9/127
>
> and which is still unanswered!
>
> I tried to bisect the thing, but I ran into compile errors. So I
> can only say it came in with
> e9f37d3 "Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux"
>
> Jörg



-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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