On Fri, May 29, 2015 at 12:13 PM, Sergio Belkin <sebelk at gmail.com> wrote:
> Hi, >
> Could you tell me if anyone else is having this kind of issues: >
> [vie may 29 07:01:22 2015] [drm] Initialized drm 1.1.0 20060810 > [vie may 29 07:01:22 2015] [drm] Memory usable by graphics device = 2048M > [vie may 29 07:01:22 2015] fb: switching to inteldrmfb from EFI VGA > [vie may 29 07:01:22 2015] [drm] Replacing VGA console driver > [vie may 29 07:01:22 2015] [drm] Supports vblank timestamp caching Rev 2 > (21.10.2013). > [vie may 29 07:01:22 2015] [drm] Driver supports precise vblank timestamp > query. > [vie may 29 07:01:22 2015] [drm] Initialized i915 1.6.0 20150130 for > 0000:00:02.0 on minor 0 > [vie may 29 07:01:22 2015] fbcon: inteldrmfb (fb0) is primary device > [vie may 29 07:01:22 2015] [drm:intel_set_pch_fifo_underrun_reporting > [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A > [vie may 29 07:01:22 2015] [drm:intel_pch_fifo_underrun_irq_handler [i915]] > *ERROR* PCH transcoder A FIFO underrun > [vie may 29 07:01:23 2015] i915 0000:00:02.0: fb0: inteldrmfb frame buffer > device What exactly is your problem? What are the symptoms? Also bugzilla is
a better place for those kind of things.

Interestingly I also see this error and usually it tends to be associated with GNOME instability and lockups or crashes.  There's a thread about this, specifically in reference to Intel Haswell.  I get crashes and lockups occasionally and when this happens that error message scrolls several times.   
https://bugzilla.redhat.com/show_bug.cgi?id=1188772