[Bug 74102] New: [ILK/SNB/IVB/HSW Regression]igt/testdisplay causes *ERROR* Pipe A FIFO underrun
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Sun Jan 26 21:21:14 PST 2014
https://bugs.freedesktop.org/show_bug.cgi?id=74102
Priority: high
Bug ID: 74102
CC: intel-gfx-bugs at lists.freedesktop.org
Assignee: intel-gfx-bugs at lists.freedesktop.org
Summary: [ILK/SNB/IVB/HSW Regression]igt/testdisplay causes
*ERROR* Pipe A FIFO underrun
QA Contact: intel-gfx-bugs at lists.freedesktop.org
Severity: major
Classification: Unclassified
OS: Linux (All)
Reporter: huax.lu at intel.com
Hardware: All
Status: NEW
Version: unspecified
Component: DRM/Intel
Product: DRI
Created attachment 92830
--> https://bugs.freedesktop.org/attachment.cgi?id=92830&action=edit
dmesg
System Environment:
--------------------------
Platform: Ironlake
Kernel(drm-intel-nightly)f27f16540be56813df2ebb8e1106dd5c258f07c3
Bug detailed description:
-------------------------
igt/testdisplay causes <3>[ 152.786238] [drm:ilk_display_irq_handler] *ERROR*
Pipe A FIFO underrun.
It happens on Ironlake, Sandybridge,Ivybridge, and Haswell with -queued and
-nightly kernel. It doesn't happen on -fixes kernel.
The latest known good commit: 74655033599ea5757a5305abf2577eea586cd295
The latest known bad commit: fc2c807b7a2b2ca8dbe2aed2f5ae730c19beeda5
output:
CRTC(3):[0] 1280x1024 60 1280 1328 1440 1688 1024 1025 1028 1066 0x5 0x48
108000
CRTC(3):[1] 1280x1024 75 1280 1296 1440 1688 1024 1025 1028 1066 0x5 0x40
135000
CRTC(3):[2] 1152x864 75 1152 1216 1344 1600 864 865 868 900 0x5 0x40 108000
CRTC(3):[3] 1024x768 75 1024 1040 1136 1312 768 769 772 800 0x5 0x40 78800
CRTC(3):[4] 1024x768 60 1024 1048 1184 1344 768 771 777 806 0xa 0x40 65000
CRTC(3):[5] 800x600 75 800 816 896 1056 600 601 604 625 0x5 0x40 49500
CRTC(3):[6] 800x600 60 800 840 968 1056 600 601 605 628 0x5 0x40 40000
CRTC(3):[7] 640x480 75 640 656 720 840 480 481 484 500 0xa 0x40 31500
CRTC(3):[8] 640x480 60 640 656 752 800 480 490 492 525 0xa 0x40 25200
CRTC(3):[9] 720x400 70 720 738 846 900 400 412 414 449 0x6 0x40 28320
Reproduce steps:
-------------------------
1. ./testdisplay
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