[Bug 81711] New: Thinkpad R51 reports [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
bugzilla-daemon at bugzilla.kernel.org
bugzilla-daemon at bugzilla.kernel.org
Tue Aug 5 01:08:32 PDT 2014
https://bugzilla.kernel.org/show_bug.cgi?id=81711
Bug ID: 81711
Summary: Thinkpad R51 reports
[drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A
underrun
Product: Drivers
Version: 2.5
Kernel Version: 3.16.0
Hardware: i386
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - Intel)
Assignee: intel-gfx-bugs at lists.freedesktop.org
Reporter: smf.linux at ntlworld.com
CC: intel-gfx-bugs at lists.freedesktop.org
Regression: No
Created attachment 145201
--> https://bugzilla.kernel.org/attachment.cgi?id=145201&action=edit
.config dmesg lspci and xorg logs
Found the following when booting my Thinkpad R51 with the latest 3.16.0 kernel.
Apart from the dmesg report the system is behaving normally, is this just a
consequence of extra reporting in the kernel or is it indicating a real
underlying
problem ?
[ 0.478413] [drm] Initialized drm 1.1.0 20060810
[ 0.478804] [drm] Memory usable by graphics device = 128M
[ 0.478864] [drm] Replacing VGA console driver
[ 0.480355] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 0.480366] [drm] Driver supports precise vblank timestamp query.
[ 0.485336] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[ 0.497316] [drm] initialized overlay support
[ 0.520239] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[ 0.550374] fbcon: inteldrmfb (fb0) is primary device
[ 1.135005] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[ 1.135095] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor
0
[ 84.457009] [drm:i9xx_check_fifo_underruns] *ERROR* pipe B underrun
[ 86.541733] [drm:i9xx_check_fifo_underruns] *ERROR* pipe B underrun
[ 86.555900] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[ 86.598726] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
The system is LFS, glibc 2.19 gcc 4.8.2
thanks.
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