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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - igt/kms_flip/absolute-wf_vblank randomly causes <3>[ 1.211971] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.flags (expected 0, found 1)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=66482">66482</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>xunx.fang@intel.com, yangweix.shui@intel.com
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>igt/kms_flip/absolute-wf_vblank randomly causes <3>[ 1.211971] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.flags (expected 0, found 1)
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>huax.lu@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=81843" name="attach_81843" title="dmesg">attachment 81843</a> <a href="attachment.cgi?id=81843&action=edit" title="dmesg">[details]</a></span>
dmesg
System Environment:
--------------------------
Arch: x86_64
Platform: GM45/ILK/SNB/IVB/HSW
Kernel: (drm-intel-next-queued)e84d8bb431a656c0c94ecfe67a3c64f4f27e48b7
Bug detailed description:
-----------------------------
It randomly happens on GM45 ironlake sandybridge ivybridge and haswell with
drm-intel-next-queued and drm-intel-fixes kernel.
It happens 1 in 10 runs.
Following cases also randomly causes <3>[ 1.211971]
[drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.flags
(expected 0, found 1):
igt/gem_flink/bad-flink
igt/kms_flip/blocking-absolute-wf_vblank
igt/kms_flip/blocking-wf_vblank
igt/kms_flip/delayed-flip-vs-dpms
igt/kms_flip/delayed-flip-vs-modeset
igt/kms_flip/delayed-flip-vs-panning
igt/kms_flip/delayed-wf_vblank-vs-dpms
igt/kms_flip/delayed-wf_vblank-vs-modeset
igt/kms_flip/flip-vs-absolute-wf_vblank
igt/kms_flip/flip-vs-bad-tiling
igt/kms_flip/flip-vs-blocking-wf-vblank
igt/kms_flip/flip-vs-dpms
igt/kms_flip/flip-vs-dpms-off-vs-modeset
igt/kms_flip/flip-vs-expired-vblank
igt/kms_flip/flip-vs-modeset
igt/kms_flip/flip-vs-panning
igt/kms_flip/flip-vs-rmfb
igt/kms_flip/flip-vs-wf_vblank
igt/kms_flip/plain-flip
igt/kms_flip/plain-flip-fb-recreate
igt/kms_flip/plain-flip-ts-check
igt/kms_flip/single-buffer-flip-vs-dpms-off-vs-modeset
igt/kms_flip/wf_vblank
igt/kms_flip/wf_vblank-ts-check
igt/kms_flip/wf_vblank-vs-dpms
igt/kms_flip/wf_vblank-vs-modeset
igt/kms_render/direct-render
igt/kms_render/gpu-blit
igt/testdisplay
output:
Using monotonic timestamps
running testcase: flip-vs-absolute-wf_vblank
Beginning flip-vs-absolute-wf_vblank on crtc 3, connector 18
1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500
.....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
flip-vs-absolute-wf_vblank on crtc 3, connector 18: PASSED
Beginning flip-vs-absolute-wf_vblank on crtc 5, connector 18
1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500
.....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
flip-vs-absolute-wf_vblank on crtc 5, connector 18: PASSED
Beginning flip-vs-absolute-wf_vblank on crtc 7, connector 18
1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500
.....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
flip-vs-absolute-wf_vblank on crtc 7, connector 18: PASSED
dmesg -r | egrep "<[1-3]>" |grep drm
<3>[ 1.211971] [drm:intel_pipe_config_compare] *ERROR* mismatch in
adjusted_mode.flags (expected 0, found 1)
Reproduce steps:
----------------------------
1. ./kms_flip --run-subtest flip-vs-absolute-wf_vblank</pre>
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