Nouveau - Nov 2009 - [Bug 25246] New: NV17 on ppc and Apple Cinema Display fails to set mode

http://bugs.freedesktop.org/show_bug.cgi?id=25246

           Summary: NV17 on ppc and Apple Cinema Display fails to set mode
           Product: xorg
           Version: 7.4
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: junlingm at gmail.com
         QAContact: xorg-team at lists.x.org


Created an attachment (id=31421)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=31421)
X logs and kernel logs with and without modeset=1

With modeset=1, the kernel segfaults, the X server segfault. With modeset=0,
the kernel works fine, the X server does not complain, but the screen is black.
I can switch VT and go to text mode. But X is always black.


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--- Comment #1 from Francisco Jerez <currojerez at riseup.net>  2009-11-23
15:03:44 PST ---
Created an attachment (id=31424)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=31424)
i2c_mac_brain_damage.patch

Does the attached patch improve things?


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--- Comment #2 from Junling Ma <junlingm at gmail.com>  2009-11-23
15:34:48 PST ---
Created an attachment (id=31427)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=31427)
The X server log after applying the patch


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--- Comment #3 from Junling Ma <junlingm at gmail.com>  2009-11-23
15:35:26 PST ---
Created an attachment (id=31428)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=31428)
The kernel log with the patch and kernel modesetting


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--- Comment #4 from Junling Ma <junlingm at gmail.com>  2009-11-23
15:37:52 PST ---
With the patch the kernel modesetting works before starting X. The nouveaufb
works too. After starting X, the screen is completely black, switching VT does
not work. I need to ssh in and kill the X process. But that still does not
bring back the VT.


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--- Comment #5 from Junling Ma <junlingm at gmail.com>  2009-11-23
16:28:50 PST ---
Created an attachment (id=31429)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=31429)
detailed kernel log with kms


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--- Comment #6 from Francisco Jerez <currojerez at riseup.net>  2009-11-28
09:00:53 PST ---
(In reply to comment #4)
> With the patch the kernel modesetting works before starting X. The
nouveaufb
> works too. After starting X, the screen is completely black, switching VT
does
> not work. I need to ssh in and kill the X process. But that still does not
> bring back the VT.
> 
X is probably locking up somewhere. Something you could try is attaching a gdb
to it to get a backtrace.


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https://bugs.freedesktop.org/show_bug.cgi?id=25246

Ilia Mirkin <imirkin at alum.mit.edu> changed:

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

--- Comment #7 from Ilia Mirkin <imirkin at alum.mit.edu> ---
It appears that this bug report has laid dormant for quite a while. Sorry we
haven't gotten to it. Since we fix bugs all the time, chances are pretty
good
that your issue has been fixed with the latest software. Please give it a shot.
(Linux kernel 3.10.7, xf86-video-nouveau 1.0.9, mesa 9.1.6, or their git
versions.) If upgrading to the latest isn't an option for you, your
distro's
bugzilla is probably the right destination for your bug report.

In an effort to clean up our bug list, we're pre-emptively closing all bugs
that haven't seen updates since 2011. If the original issue remains, please
make sure to provide fresh info, see http://nouveau.freedesktop.org/wiki/Bugs/
for what we need to see, and re-open this one.

Thanks,

The Nouveau Team

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