Oct  6 17:13:40 toshiba-l300 kernel: [   14.436728] [drm] Initialized i915 1.6.0 20160919 for 0000:00:02.0 on minor 0
Oct  6 17:13:40 toshiba-l300 kernel: [   15.685046] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
Oct  6 17:13:40 toshiba-l300 kernel: [   24.577831] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
Oct  6 18:31:08 toshiba-l300 kernel: [   13.142160] [drm] Initialized i915 1.6.0 20160919 for 0000:00:02.0 on minor 0
Oct  6 18:31:08 toshiba-l300 kernel: [   14.437734] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
Oct  6 18:31:08 toshiba-l300 kernel: [   23.305448] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
Oct  6 18:31:24 toshiba-l300 kernel: [ 3792.642640] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
Oct  6 18:44:08 toshiba-l300 kernel: [   13.818905] [drm] Initialized i915 1.6.0 20160919 for 0000:00:02.0 on minor 0
Oct  6 18:44:08 toshiba-l300 kernel: [   15.048737] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
Oct  6 18:45:15 toshiba-l300 kernel: [   87.085354] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
Oct  6 18:46:45 toshiba-l300 kernel: [  176.851565] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
Oct  7 19:03:34 toshiba-l300 kernel: [   13.136138] [drm] Initialized i915 1.6.0 20160919 for 0000:00:02.0 on minor 0
Oct  7 19:03:34 toshiba-l300 kernel: [   14.665706] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
Oct  7 19:06:13 toshiba-l300 kernel: [   13.324223] [drm] Initialized i915 1.6.0 20160919 for 0000:00:02.0 on minor 0
Oct  7 19:06:13 toshiba-l300 kernel: [   14.571106] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
Oct  7 19:07:46 toshiba-l300 kernel: [   13.426852] [drm] Initialized i915 1.6.0 20160919 for 0000:00:02.0 on minor 0
Oct  7 19:07:46 toshiba-l300 kernel: [   14.912707] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
Oct  7 19:07:53 toshiba-l300 kernel: [   29.388706] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
Oct  7 19:08:53 toshiba-l300 kernel: [   13.705924] [drm] Initialized i915 1.6.0 20160919 for 0000:00:02.0 on minor 0
Oct  7 19:08:53 toshiba-l300 kernel: [   15.000032] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
Oct  9 14:26:25 toshiba-l300 kernel: [   13.233322] [drm] Initialized i915 1.6.0 20160919 for 0000:00:02.0 on minor 0
Oct  9 14:26:25 toshiba-l300 kernel: [   14.480372] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device