[Bug 15729] New: nouveau fails to get ddc info from screen

[Bug 15729] New: nouveau fails to get ddc info from screen

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=15729

           Summary: nouveau fails to get ddc info from screen
           Product: xorg
           Version: unspecified
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: minor
          Priority: low
         Component: Driver/nouveau
        AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
        ReportedBy: GatoLoko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
         QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org


Created an attachment (id=16203)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=16203)
Xorg log

Trying xrandr I got a weird maximun screen size.
Talking about this with somebody, he pointed that it may be because nouveau
can't access ddc info.

It's a mainboard integrated NV4E (gforce 6150LE / cuadro nvs 210s)


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[Bug 15729] nouveau fails to get ddc info from screen

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=15729





--- Comment #1 from Stuart Bennett <sb476-KWPb1pKIrIJaa/9Udqfwiw@public.gmane.org>  2008-04-27 18:17:41 PST ---
Created an attachment (id=16209)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=16209)
Attempt at C51 I2C

Hi, please try this patch, and attach a log with the results


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[Bug 15729] nouveau fails to get ddc info from screen

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=15729





--- Comment #2 from Raúl Soriano <GatoLoko@gmail.com>  2008-04-29 02:14:34 PST ---
I've tryed the patch and it fixes the ddc problem.

Now nouveau gets the list of modelines and works with it, but ignores the xorg
configured resolution (1400x1050) that isn't in the ddc list, and has worked
previously with nouveau and nvidia drivers.


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[Bug 15729] nouveau fails to get ddc info from screen

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=15729





--- Comment #3 from Stuart Bennett <sb476-KWPb1pKIrIJaa/9Udqfwiw@public.gmane.org>  2008-04-29 05:46:54 PST ---
A log file with   Option "ModeDebug" "on"   added to your xorg.conf device
section would help.


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[Bug 15729] nouveau fails to get ddc info from screen

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=15729





--- Comment #4 from Raúl Soriano <GatoLoko@gmail.com>  2008-04-29 07:29:15 PST ---
Created an attachment (id=16237)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=16237)
New log with ModeDebug activated as requested


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[Bug 15729] nouveau fails to get ddc info from screen

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=15729


Raúl Soriano <GatoLoko@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #16237|application/octet-stream    |text/plain
          mime type|                            |




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[Bug 15729] nouveau fails to get ddc info from screen

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=15729





--- Comment #5 from Raúl Soriano <GatoLoko@gmail.com>  2008-04-29 07:54:31 PST ---
Created an attachment (id=16238)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=16238)
xorg.conf as requested by malc0 at irc


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[Bug 15729] nouveau fails to get ddc info from screen

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=15729





--- Comment #6 from Stuart Bennett <sb476-KWPb1pKIrIJaa/9Udqfwiw@public.gmane.org>  2008-04-29 08:30:58 PST ---
The loss of 1400x1050 is due to your xserver not having commit
4b5b6e7baab58072a983d2ec136965f404c3a74a "fix max clock unit".

You either need a newer xserver, or to follow instructions III.5 in
http://wiki.debian.org/XStrikeForce/HowToRandR12, with a modeline of
Modeline "1400x1050_74.8"  155.80  1400 1464 1784 1912  1050 1052 1064 1090
+hsync +vsync


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[Bug 15729] nouveau fails to get ddc info from screen

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=15729


Stuart Bennett <sb476-KWPb1pKIrIJaa/9Udqfwiw@public.gmane.org> changed:

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




--- Comment #7 from Stuart Bennett <sb476-KWPb1pKIrIJaa/9Udqfwiw@public.gmane.org>  2008-05-06 11:39:14 PST ---
Patch pushed to git, so C51 DDC is now fixed.

As for your 1400x1050 issue, I suggest trying the howto/modeline suggested in
comment 6


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