[Bug 98625] New: [SNB BAT] HDMI: EDID checksum is invalid

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98625

            Bug ID: 98625
           Summary: [SNB BAT] HDMI: EDID checksum is invalid
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: imre.deak at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

During igt/kms_flip on an SNB-2520m machine, monitor ELD G246HYL:

[  384.622585] [drm:intel_hdmi_detect [i915]] [CONNECTOR:46:HDMI-A-1]
[  384.650610] [drm:gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0040 w(1)
[  384.650659] [drm:gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK on first
message, retry
[  384.650956] [drm:gmbus_xfer [i915]] GMBUS [i915 gmbus dpb] NAK for addr:
0040 w(1)
[  384.650968] [drm:drm_dp_dual_mode_detect] DP dual mode HDMI ID:  (err -6)
[  384.650979] [drm:drm_detect_monitor_audio] Monitor has basic audio support
[  384.651016] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 162

https://intel-gfx-ci.01.org/CI/Patchwork_2916/fi-snb-2520m/dmesg-during.log

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