[Bug 73343] New: Recent radeon driver "probed a monitor but no|invalid EDID"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73343

          Priority: medium
            Bug ID: 73343
          Assignee: xorg-driver-ati at lists.x.org
           Summary: Recent radeon driver "probed a monitor but no|invalid
                    EDID"
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: freedesktop at naddiseo.ca
          Hardware: Other
            Status: NEW
           Version: git
         Component: Driver/Radeon
           Product: xorg

I updated my driver yesterday to the latest provided by
ppa:oibaf/graphics-drivers, and now I'm having having problems with on of the
monitors attached to my (r7 260x) card. 

Snippet from 
[    2.761940] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 220
[    2.761945] Raw EDID:
[    2.761948]      00 ff ff ff ff ff ff 00 1e 6d 3b 58 6a 43 03 00
[    2.761951]      00 00 00 00 00 00 00 00 00 00 00 00 10 00 00 00
[    2.761954]      0e 50 54 a5 4b 00 71 4f 81 80 81 8f b3 00 01 01
[    2.761956]      00 00 00 00 00 00 00 00 00 00 00 00 10 00 00 00
[    2.761959]      45 00 dd 0c 11 00 00 1e 00 00 00 fd 00 38 4b 1e
[    2.761962]      00 00 00 00 00 00 00 00 00 00 00 00 10 00 00 00
[    2.761964]      32 34 31 31 0a 20 20 20 20 20 20 20 00 00 00 ff
[    2.761967]      00 00 00 00 00 00 00 00 00 00 00 00 10 00 00 00
[    2.790928] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 220


If you look in the dmesg log, there is also mention of:
  *ERROR* atombios stuck in loop for more than 5secs aborting
My computer did lock up until I installed the latest mainline kernel, but the
error still remains. This may be related to
https://bugs.freedesktop.org/show_bug.cgi?id=7317



Full Dmesg: http://paste.ubuntu.com/6706927/
Xorg.0.log: http://paste.ubuntu.com/6706938/

Driver
apt-cache policy xserver-xorg-video-radeon
xserver-xorg-video-radeon:
  Installed: 1:7.2.0+git1312250730.04ef03~gd~s
  Candidate: 1:7.2.0+git1312250730.04ef03~gd~s
  Version table:
 *** 1:7.2.0+git1312250730.04ef03~gd~s 0
        500 http://ppa.launchpad.net/oibaf/graphics-drivers/ubuntu/ saucy/main
amd64 Packages
        100 /var/lib/dpkg/status
     1:7.2.0-0ubuntu10 0
        500 http://archive.ubuntu.com/ubuntu/ saucy/main amd64 Packages

Kernel:
linux-image-3.13.0-999-generic_3.13.0-999.201401060405_amd64

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