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drm:intel_cpu_fifo_underrun_irq_handler [i915] *ERROR* CPU pipe A FIFO underrun
#1
This error started showing up at boot time after updating to the 4.1.0 kernel but It would go by so fast I could never make out what it was. After much searching I was able to find it in the syslog, I have updated to the new 4.1.1 kernel but it still shows up at boot. I have not noticed any difference in my system performance, but I thought it may be affecting something I don't normally use, so I decided to report the problem to the team.  Smile
“I have not failed. I’ve just found 10,000 ways that won’t work.” - Thomas Edison
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#2
After a bit of research, looks like a bug that hasn't been squashed yet.
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#3
I read on one site that it was a kernel bug that had been fixed but has resurfaced in the newer kernels. I am sure one of the next few kernels will take care of it, from what I found it is on a lot of systems.
“I have not failed. I’ve just found 10,000 ways that won’t work.” - Thomas Edison
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#4
Is there something in the newer kernels you require?
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#5
Probably not, I just thought I would test them on this old netbook. 
“I have not failed. I’ve just found 10,000 ways that won’t work.” - Thomas Edison
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#6
Rolling back to the originally installed kernel fixed this issue.
“I have not failed. I’ve just found 10,000 ways that won’t work.” - Thomas Edison
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