Nouveau - Aug 2011 - [Bug 39866] New: Incorrectly detects Analog outputs as TV out on Apple Cards

https://bugs.freedesktop.org/show_bug.cgi?id=39866

           Summary: Incorrectly detects Analog outputs as TV out on Apple
                    Cards
           Product: xorg
           Version: git
          Platform: PowerPC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: jasturm002 at aol.com
         QAContact: xorg-team at lists.x.org


Created an attachment (id=49974)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=49974)
Dmesg from working boot with video=TV-1:d 

When KMS is enabled the Nouveau kernel driver detects any DVI to VGA adapters
as TV outputs even though the card lacks any native TV connectors. If I append
video=TV-1:d to the kernel cmdline it properly detects the VGA adapter and
output on the monitor works correctly. According to the radeon devs the DVI to
TV adapter Apple sells provides its own EDID that can be used to detect it.
(bug 19491 has this output and relates to properly detecting it.)

My system is a PowerMac 7,2 Dual 2Ghz G5 and the video card is nVidia
Corporation NV34 [GeForce FX 5200 Ultra] (rev a1)

I will attach the dmesg from a working boot and I can get a non working boot in
a second.

I have also seen reports of the TV out being mis detected on an Apple g4
machine with a geforce mx 400 and it's an integrated iLamp panel and I can
get
working and non working dmesg's from that user as well if you think it is
related.

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https://bugs.freedesktop.org/show_bug.cgi?id=39866

--- Comment #1 from Jon Sturm <jasturm002 at aol.com> 2011-08-05 14:23:14
PDT ---
Created an attachment (id=49975)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=49975)
Dmesg from a non-working boot without video=TV-1:d

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https://bugs.freedesktop.org/show_bug.cgi?id=39866

--- Comment #2 from Jon Sturm <jasturm002 at aol.com> 2011-08-05 14:36:33
PDT ---
Xrandr output from non working setup.
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096
DVI-I-1 disconnected (normal left inverted right x axis y axis)
DVI-I-2 connected (normal left inverted right x axis y axis)
   1024x768       60.0 +   75.1     70.1
   832x624        74.6
   800x600        72.2     75.0     60.3
   640x480        72.8     75.0     60.0
   720x400        70.1
TV-1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x
0mm
   720x576        50.0 +
   1024x768       50.0*
   800x600        50.0
   720x480        50.0
   640x480        50.0
   400x300       100.0
   320x240       100.0
   320x200       100.0

To me it looks like the VGA monitor's EDID is being mistaken for a DVI one
and
the TV-1 modes are generated internally by the driver. The real apple adapter
includes its own EDID that can be used for detection and its modes should be
used if I understand correctly.

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Jon Sturm <jasturm002 at aol.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nouveau at lists.freedesktop.o
                   |                            |rg, xorg-team at lists.x.org

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--- Comment #3 from Jon Sturm <jonimoose at gmail.com> 2011-08-06 08:34:07
PDT ---
Created an attachment (id=49996)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=49996)
Power PC GeForce FX 5200 Ultra 64MB vbios

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--- Comment #4 from Emil Velikov <emil.l.velikov at gmail.com> 2011-08-07
13:33:05 PDT ---
Hi Jon

Can you please provide a bit more information about the system
* Number and type of connectors
* Logs if you try and insert the DVI to VGA adapter (+ monitor that is) into
"DVI-1" (if it exists)
* The same logs with additional verbose level - append
"drm.debug=0x04" to your
kernel command line

https://bugs.freedesktop.org/show_bug.cgi?id=39866

--- Comment #5 from Jon Sturm <jonimoose at gmail.com> 2011-08-14 20:43:40
PDT ---
There are two connectors on the card, one ADC(Apple Display Connector, which I
believe is basically DVI with USB) and one DVI, yaboot is having issues with
the machine but as soon as I get it back up I will get you those logs.

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--- Comment #6 from Jon Sturm <jonimoose at gmail.com> 2011-08-15 22:34:42
PDT ---
Created an attachment (id=50256)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=50256)
dmesg drmdebug unpluging and repluging adapter

Attached is the dmesg with the drm debug line after I removed and repluged the
adapter+monitor into the DVI port. I will do it without the drmdebug line
shortly.

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--- Comment #7 from Jon Sturm <jonimoose at gmail.com> 2011-08-15 23:08:05
PDT ---
Created an attachment (id=50257)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=50257)
dmesg after plug and unplug, no drmdebug

This is the dmesg from booting without drmdebug and I removed the adpater
before nouveau was loaded. I tried to just boot without it but it seemed to
force booting Mac OS X when no output was attached, I'm not sure why that
was.

I also started X without a display attached but xrandr claimed DVI-I-2 was
connected. Unpluging and replugging the display with X running caused xrandr to
say TV-1 disconnected but DVI-I-2 and DVI-I-1 never changed. I can run the
tests again with TV detection disabled if needed, assuming yaboot plays nicely.

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--- Comment #8 from Jon Sturm <jonimoose at gmail.com> 2011-08-15 23:11:54
PDT ---
I can also give a dev ssh access if needed as the box is mainly used as a build
box for Arch Linux PPC packages as well as for a few friends to test if their
code is big endian safe.

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--- Comment #9 from Jon Sturm <jonimoose at gmail.com> 2011-08-22 18:39:03
PDT ---
Ok so I overpaid for the official DVI to TV adapter from Apple and the good
news is that it works. The bad news is nouveau/xrandr still thinks both DVI-I-2
and TV-1 are connected. Dmesg mentions nothing about the DVI-I-2 connector
which makes me wonder why it is saying it is connected.

[14:38 jon at ArchG5 ~]$ DISPLAY=:0 xrandr
Screen 0: minimum 320 x 200, current 640 x 480, maximum 4096 x 4096
DVI-I-1 disconnected (normal left inverted right x axis y axis)
DVI-I-2 connected (normal left inverted right x axis y axis)
   1024x768       60.0
   800x600        60.3     56.2
   848x480        60.0
   640x480        59.9
TV-1 connected 640x480+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   720x576        50.0 +
   1024x768       50.0
   800x600        50.0
   720x480        50.0
   640x480        50.0*
   400x300       100.0
   320x240       100.0
   320x200       100.0

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

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

--- Comment #10 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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