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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [ILK]dmesg error "[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 193" after boot"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81373">81373</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[ILK]dmesg error "[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 193" after boot
</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>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jinxianx.guo@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</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=102821" name="attach_102821" title="dmesg">attachment 102821</a> <a href="attachment.cgi?id=102821&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: No
I rollback kernel to 2014/02/01, this bug still able to reproduce.
Non-working platforms: ILK
==kernel==
--------------------------
origin/drm-intel-nightly: 2a38e1bcd4dc9523cd723291340226d139bece1b(fails)
drm-intel-nightly: 2014y-07m-14d-23h-18m-30s integration manifest
origin/drm-intel-next-queued: ebcdf5276e6e2ddef6a4fd7716684030301a6fed(fails)
drm/i915: Handle failure to kick out a conflicting fb driver
origin/drm-intel-fixes: c6930992948adf0f8fc1f6ff1da51c5002a2cf95(fails)
Revert "drm/i915: reverse dp link param selection, prefer fast over wide
again"
==Bug detailed description==
dmesg error "[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 193" after boot
Dmesg shows:
[root@x-pk1 ~]# dmesg -r|egrep "<[1-3>]"|grep drm
<3>[ 1.470425] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 193
<3>[ 1.482786] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 193
<3>[ 1.495113] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 193
<3>[ 1.507510] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 193
<3>[ 1.577457] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 193
<3>[ 1.611762] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 193
<3>[ 1.646303] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 193
<3>[ 1.680354] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 193
<3>[ 1.751840] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 193
<3>[ 1.764384] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 193
<3>[ 1.782313] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 193
<3>[ 1.802812] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 193
<3>[ 1.883420] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 193
<3>[ 1.925428] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 193
<3>[ 1.967277] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 193
<3>[ 2.008638] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 193
==Reproduce steps==
----------------------------
1. boot
2. dmesg -r|egrep "<[1-3>]"|grep drm</pre>
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