[Bug 27708] New: [KMS] Repeated EDID errors despite everything working

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=27708

           Summary: [KMS] Repeated EDID errors despite everything working
           Product: DRI
           Version: XOrg CVS
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: minor
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: curaga at operamail.com


Created an attachment (id=35119)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=35119)
dmesg

I tried KMS for the first time on a Radeon HD4350 today. UMS works fine, and
Xorg doesn't complain anything about my screen's edid.

Everything works fine in KMS mode, I get full 1600x900 framebuffer, fast VT
switching etc.

KMS however fills my dmesg with EDID and composite sync errors:

"composite sync not supported"

"[drm:edid_is_valid] *ERROR* EDID checksum is invalid, remainder is 170
[drm:edid_is_valid] *ERROR* Raw EDID:
<3>00 ff ff ff ff ff ff 00 04 72 9d 00 fb 28 20 90  .........r...( .
<3>02 13 01 03 68 2c 19 78 2e ee 95 a3 54 4c 43 26  ....h,.x....TLC&
<3>0f 50 54 bf ee 80 a9 c0 71 4f 81 c0 81 00 01 01  .PT.....qO......
<3>01 01 01 01 01 01 31 2e 40 00 62 84 22 30 58 a8  ......1. at .b."0X.
<3>35 00 bb f9 10 00 00 04 00 00 00 fd 00 37 4b 1e  5............7K.
<3>50 10 00 0a 20 20 20 20 20 20 00 00 00 fc 00 58  P...      .....X
<3>32 30 33 48 0a 20 20 20 20 20 20 20 00 00 00 ff  203H.       ....
<3>00 4c 46 50 30 42 30 30 39 33 39 30 30 20 00 ce  .LFP0B0093900 ..

radeon 0000:01:00.0: VGA-1: EDID invalid."

64-bit linux 2.6.33.1
Xorg 1.7.6, radeon 6.13

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