Ubuntu
linux package

  1. Bug #1550779
  2. Comment #28

Comment 28 for bug 1550779

Revision history for this message
pavel bursa (bursap) wrote : Re: [i915]] *ERROR* CPU pipe A FIFO underrun - Xorg glitches

Linux xenie 4.4.0-24-generic #43-Ubuntu SMP
Intel® Core™ i3-4160 CPU @ 3.60GHz × 4
Ubuntu 16.04 LTS 64 bit

[Út čen 14 00:11:03 2016] vboxpci: IOMMU not found (not registered)
[Út čen 14 00:11:03 2016] nf_conntrack: automatic helper assignment is deprecated and it will be removed soon. Use the iptables CT target to attach helpers instead.
[St čen 15 00:18:28 2016] perf interrupt took too long (2512 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
[St čen 15 01:37:31 2016] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe A
[St čen 15 01:37:31 2016] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
[St čen 15 01:40:53 2016] snd_hda_codec_hdmi hdaudioC0D0: HDMI: ELD buf size is 0, force 128
[St čen 15 01:40:53 2016] snd_hda_codec_hdmi hdaudioC0D0: HDMI: invalid ELD data byte 0
[St čen 15 02:08:53 2016] snd_hda_codec_hdmi hdaudioC0D0: HDMI: ELD buf size is 0, force 128
[St čen 15 02:08:53 2016] snd_hda_codec_hdmi hdaudioC0D0: HDMI: invalid ELD data byte 0
[St čen 15 02:08:55 2016] snd_hda_codec_hdmi hdaudioC0D0: HDMI: ELD buf size is 0, force 128
[St čen 15 02:08:55 2016] snd_hda_codec_hdmi hdaudioC0D0: HDMI: invalid ELD data byte 0
[St čen 15 19:56:52 2016] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe A
[St čen 15 19:56:52 2016] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
[St čen 15 20:28:09 2016] usb 3-9.1: USB disconnect, device number 3