Re: [BUG/REGRESSION] Screen flickering

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On Wed, May 13, 2015 at 01:10:11PM +0200, Jan Niehusmann wrote:
> On Wed, May 13, 2015 at 04:02:25PM +0530, Sudip Mukherjee wrote:
> > > 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).
> 
> (Please note that I didn't do a bisect - that was Thomas. I only noted
> that I can confirm his observations and that his patch helps to prevent
> or hide the issue.)
> 
> Perhaps these are two completely unrelated issues?
yes, maybe unrelated issue. since I am also having similar errors in
dmesg and also having a similar type of problem so replied here.

regards
sudip
> 
> Jan
> 
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