[Bug 81373] New: [ILK]dmesg error "[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 193" after boot

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81373

          Priority: medium
            Bug ID: 81373
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [ILK]dmesg error "[drm:drm_edid_block_valid] *ERROR*
                    EDID checksum is invalid, remainder is 193" after boot
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: jinxianx.guo at intel.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 102821
  --> https://bugs.freedesktop.org/attachment.cgi?id=102821&action=edit
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 at 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

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20140715/b798b5d1/attachment.html>