From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
To: Jan Niehusmann <jan@gondor.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>,
intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org,
Thomas Gummerer <t.gummerer@gmail.com>,
Daniel Vetter <daniel.vetter@intel.com>
Subject: Re: [BUG/REGRESSION] Screen flickering
Date: Wed, 13 May 2015 16:02:25 +0530 [thread overview]
Message-ID: <20150513103224.GA8470@sudip-PC> (raw)
In-Reply-To: <20150513095319.GA4249@jannic.reliablesolutions.de>
On Wed, May 13, 2015 at 11:53:19AM +0200, Jan Niehusmann wrote:
> Hi,
>
> On Wed, May 13, 2015 at 12:14:39PM +0300, Jani Nikula wrote:
> > Is this the same as https://bugzilla.kernel.org/show_bug.cgi?id=98141 ?
>
> The visible effect in the video is similar to what I see on the LVDS
> display. I also see some influence of the mouse pointer position on the
> blanked areas.
>
> The effect on the external screen is more like single scan
> lines jumping to the right and back, at a high (but still visible)
> frequency.
>
> What I'm missing in the report, are some log entries I'm seeing on my
> notebook:
>
> Apr 30 08:50:23 localhost kernel: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
> Apr 30 08:50:23 localhost kernel: [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder B FIFO underrun
> Apr 30 08:50:29 localhost kernel: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
> Apr 30 08:50:29 localhost kernel: [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun
hi,
I also have the similar entries in my dmesg, though my problem is a
little different from yours and my bisect lead to another commit.
And that also is still not fixed (last tested with 4.0).
http://patchwork.freedesktop.org/patch/46071/
regards
sudip
>
> Jan
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
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WARNING: multiple messages have this Message-ID (diff)
From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
To: Jan Niehusmann <jan@gondor.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>,
Thomas Gummerer <t.gummerer@gmail.com>,
dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org,
linux-kernel@vger.kernel.org, David Airlie <airlied@linux.ie>,
Daniel Vetter <daniel.vetter@intel.com>,
Tvrtko Ursulin <tvrtko.ursulin@intel.com>,
Michael Leuchtenburg <michael@slashhome.org>,
Matt Roper <matthew.d.roper@intel.com>
Subject: Re: [BUG/REGRESSION] Screen flickering
Date: Wed, 13 May 2015 16:02:25 +0530 [thread overview]
Message-ID: <20150513103224.GA8470@sudip-PC> (raw)
In-Reply-To: <20150513095319.GA4249@jannic.reliablesolutions.de>
On Wed, May 13, 2015 at 11:53:19AM +0200, Jan Niehusmann wrote:
> Hi,
>
> On Wed, May 13, 2015 at 12:14:39PM +0300, Jani Nikula wrote:
> > Is this the same as https://bugzilla.kernel.org/show_bug.cgi?id=98141 ?
>
> The visible effect in the video is similar to what I see on the LVDS
> display. I also see some influence of the mouse pointer position on the
> blanked areas.
>
> The effect on the external screen is more like single scan
> lines jumping to the right and back, at a high (but still visible)
> frequency.
>
> What I'm missing in the report, are some log entries I'm seeing on my
> notebook:
>
> Apr 30 08:50:23 localhost kernel: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
> Apr 30 08:50:23 localhost kernel: [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder B FIFO underrun
> Apr 30 08:50:29 localhost kernel: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
> Apr 30 08:50:29 localhost kernel: [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun
hi,
I also have the similar entries in my dmesg, though my problem is a
little different from yours and my bisect lead to another commit.
And that also is still not fixed (last tested with 4.0).
http://patchwork.freedesktop.org/patch/46071/
regards
sudip
>
> Jan
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
next prev parent reply other threads:[~2015-05-13 10:32 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-12 19:54 [BUG/REGRESSION] Screen flickering Thomas Gummerer
2015-05-12 19:54 ` Thomas Gummerer
2015-05-13 9:14 ` Jani Nikula
2015-05-13 9:14 ` Jani Nikula
2015-05-13 9:53 ` Jan Niehusmann
2015-05-13 9:53 ` Jan Niehusmann
2015-05-13 10:32 ` Sudip Mukherjee [this message]
2015-05-13 10:32 ` Sudip Mukherjee
2015-05-13 11:10 ` Jan Niehusmann
2015-05-13 11:10 ` Jan Niehusmann
2015-05-13 11:28 ` Sudip Mukherjee
2015-05-13 11:28 ` Sudip Mukherjee
2015-05-13 11:27 ` Thomas Gummerer
2015-05-13 11:27 ` Thomas Gummerer
2015-05-13 11:34 ` Sudip Mukherjee
2015-05-13 11:23 ` Thomas Gummerer
2015-05-13 11:23 ` Thomas Gummerer
2015-05-14 3:21 ` Matt Roper
2015-05-14 7:16 ` [PATCH v2] drm/i915: fix screen flickering Thomas Gummerer
2015-05-14 7:16 ` Thomas Gummerer
2015-05-14 14:28 ` Matt Roper
2015-05-14 14:28 ` Matt Roper
2015-05-19 7:37 ` Jani Nikula
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