Under what product should I submit the bug? dmr.debug=14 doesn't show much.
[jon@localhost]~% dmesg | grep drm
[ 1.936241] [drm] Initialized drm 1.1.0 20060810
[ 2.193043] [drm] Memory usable by graphics device = 2048M
[ 2.193046] [drm] Replacing VGA console driver
[ 2.199998] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 2.200000] [drm] Driver supports precise vblank timestamp query.
[ 2.287949] [drm] GMBUS [i915 gmbus dpb] timed out, falling back to
bit banging on pin 5
[ 2.297614] fbcon: inteldrmfb (fb0) is primary device
[ 2.576664] [drm:cpt_set_fifo_underrun_reporting] *ERROR* uncleared
pch fifo underrun on pch transcoder A
[ 2.576666] [drm:cpt_serr_int_handler] *ERROR* PCH transcoder A FIFO
underrun
Jon
On 02/08/2015 11:18 PM, Jani Nikula wrote:
On Fri, 30 Jan 2015, jon <jmoroney@xxxxxxxxxx> wrote:
Just updated my thinkpad (x230, ivy bridge platform) to 3.18 and boot
fails with the error 'PCH fifo underrun'. This is under fedora 21 with
the fedora kernel version 3.18.3-201
Please file a bug on [1], attach a dmesg from boot to the problem with
drm.debug=14 module parameter set. Reference this thread.
Thanks,
Jani.
[1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel
--
Jon
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