[Bug 109376] FIFO underrun, visual glitches and instability with dual monitors

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109376

--- Comment #13 from Hin-Tak Leung <htl10 at users.sourceforge.net> ---
I have a 97MB gz'ed kernel log... is there a place I could upload it? 

That's partly because I still have "drm.debug=0x1e log_buf_len=4M" on.

# grep FIFO kern.log
Mar  5 11:07:44 hintak-System-Product-Name kernel: [ 2669.215740]
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO
underrun
Mar  5 12:41:22 hintak-System-Product-Name kernel: [ 8287.823276]
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO
underrun
Mar  5 12:41:22 hintak-System-Product-Name kernel: [ 8287.823298]
[drm:intel_fbc_underrun_work_fn [i915]] Disabling FBC due to FIFO underrun.
Mar  6 10:38:10 hintak-System-Product-Name kernel: [87298.948144]
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO
underrun
Mar  6 14:41:16 hintak-System-Product-Name kernel: [101885.855603]
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO
underrun

grep -E '(Mar  5 1|Mar  5 2|Mar  6 0|Mar  6 1)' kern.log | gzip -c >
kern.log-subset.gz

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