[Bug 53842] New: Nouveau fails to read EDID, but X succeeds.

[Bug 53842] New: Nouveau fails to read EDID, but X succeeds.

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

https://bugs.freedesktop.org/show_bug.cgi?id=53842

             Bug #: 53842
           Summary: Nouveau fails to read EDID, but X succeeds.
    Classification: Unclassified
           Product: xorg
           Version: unspecified
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
        ReportedBy: James.Dutton-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
         QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org


Created attachment 65829
  --> https://bugs.freedesktop.org/attachment.cgi?id=65829
dmesg showing the problem with EDID

Nouveau fails to read EDID, but X succeeds

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[Bug 53842] Nouveau fails to read EDID, but X succeeds.

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

https://bugs.freedesktop.org/show_bug.cgi?id=53842

--- Comment #1 from James.Dutton-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org 2012-08-20 12:23:20 UTC ---
Created attachment 65830
  --> https://bugs.freedesktop.org/attachment.cgi?id=65830
Xorg.0.log showing X reading EDID OK.

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[Bug 53842] Nouveau fails to read EDID, but X succeeds.

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

https://bugs.freedesktop.org/show_bug.cgi?id=53842

Marcin Slusarz <marcin.slusarz-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> changed:

           What    |Removed                     |Added
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  Attachment #65829|application/octet-stream    |text/plain
          mime type|                            |

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[Bug 53842] Nouveau fails to read EDID, but X succeeds.

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=53842

Emil Velikov <emil.l.velikov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #2 from Emil Velikov <emil.l.velikov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
Hi James

In linux 3,2 and 3.3 nouveau was using a custom i2c-algo-bit functions, which
are possibly causing the issue in your case

Since linux 3.4 we have reverted to using the in-kernel functions

Author: Ben Skeggs <bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>  2012-05-04 05:38:49
Branches: remotes/linus-stable/linux-3.4.y, remotes/linus-stable/linux-3.5.y,
remotes/linus-stable/linux-3.6.y, remotes/linus-stable/master,
remotes/linus/master

    drm/nouveau/i2c: resume use of i2c-algo-bit, rather than custom stack

    Previous issues with i2c-algo-bit have now been resolved.

    This is a revert of f553b79c03f0dbd52f6f03abe8233a2bef8cbd0d mostly,
    due to fixes in the i2c core repairing the original issue, this code
    isn't required and was causing regressions.

    Signed-off-by: Ben Skeggs <bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
    Reported-by: Nick Bowler <nbowler-7BP4RkwGw0uXmMXjJBpWqg@public.gmane.org>
    Tested-by: Nick Bowler <nbowler-7BP4RkwGw0uXmMXjJBpWqg@public.gmane.org>
    Signed-off-by: Dave Airlie <airlied-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>

Can you please update and reopen the bug, if the issue persist

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