[Bug 108421] New: [drm:intel_cpu_fifo_underrun_irq_handler] *ERROR* CPU pipe A FIFO underrun

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=108421

            Bug ID: 108421
           Summary: [drm:intel_cpu_fifo_underrun_irq_handler] *ERROR* CPU
                    pipe A FIFO underrun
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.3.0
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - Intel)
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: mmokrejs at gmail.com
                CC: intel-gfx-bugs at lists.freedesktop.org
        Regression: No

Created attachment 195351
  --> https://bugzilla.kernel.org/attachment.cgi?id=195351&action=edit
dmesg-4.3.0

I just realized in dmesg that my 4.3.0 kernel complains about this. I have Dell
Vostro 3550, which is a SandyBridge based laptop.

[    2.351920] [drm] Initialized drm 1.1.0 20060810
[    2.355394] [drm] Memory usable by graphics device = 2048M
[    2.355473] [drm] VT-d active for gfx access
[    2.355549] [drm] Disabling PPGTT because VT-d is on
[    2.355649] [drm] Replacing VGA console driver
[    2.356449] Console: switching to colour dummy device 80x25
[    2.366260] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    2.366267] [drm] Driver supports precise vblank timestamp query.
[    2.366329] [drm] DMAR active, disabling use of stolen memory
[    2.366715] vgaarb: device changed decodes:
PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
[    2.395116] ACPI: Video Device [GFX0] (multi-head: yes  rom: no  post: no)
[    2.398295] acpi device:34: registered as cooling_device0
[    2.398866] input: Video Bus as
/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input4
[    2.399006] [drm] Initialized i915 1.6.0 20150731 for 0000:00:02.0 on minor
0
[    2.402140] fbcon: inteldrmfb (fb0) is primary device

[    2.743926] [drm:intel_cpu_fifo_underrun_irq_handler] *ERROR* CPU pipe A
FIFO underrun
[    3.592509] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device


Aside from the message I do not see a problem with my screen.

-- 
You are receiving this mail because:
You are on the CC list for the bug.
You are the assignee for the bug.