[Bug 36416] New: External monitor connected to docking station gets no signal, although recognized

[Bug 36416] New: External monitor connected to docking station gets no signal, although recognized

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

https://bugs.freedesktop.org/show_bug.cgi?id=36416

           Summary: External monitor connected to docking station gets no
                    signal, although recognized
           Product: xorg
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
        ReportedBy: alex-LJ/xIhIu6xqjKv3TNrM5DQ@public.gmane.org
         QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org


Created an attachment (id=45851)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=45851)
System Information (emerge --info)

Hello,

I'm running a gentoo amd64 installation on my Dell Precision M6300. It resides
in a docking station, so I don't have to connect 10 cables, when returning to
my desk. My external Monitor (HP LP2475w) is connected via the DVI-D connector
at the docking station.
"xrandr -q" lists the monitor. But if I enable it the monitor stays blank,
showing a "no signal" message and goes to sleep. Unplugging and replugging
doesn't improve it. The monitor is also listed in the Monitor section of the
system settings on my gnome 3 desktop, but it's the same game like with the
xrandr command line tool.
BUT, if I take my Laptop out of docking station and connect the monitor to the
DVI-D connector of the Laptop I immediately get a signal.
From what I can see, it seems that the signals don't get remapped, when the
Laptop is inside the docking station. Just a guess.
With the proprietary Nvidia driver this configuration works just fine (except
that the suspend is not working with gnome 3).

Please tell me the logs/debug messages you need, I already attached some.

Thanks in advance,
Alex

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[Bug 36416] External monitor connected to docking station gets no signal, although recognized

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

https://bugs.freedesktop.org/show_bug.cgi?id=36416

--- Comment #1 from Alexander Diewald <alex-LJ/xIhIu6xqjKv3TNrM5DQ@public.gmane.org> 2011-04-20 03:25:29 PDT ---
Created an attachment (id=45852)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=45852)
dmesg output

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[Bug 36416] External monitor connected to docking station gets no signal, although recognized

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

https://bugs.freedesktop.org/show_bug.cgi?id=36416

--- Comment #2 from Alexander Diewald <alex-LJ/xIhIu6xqjKv3TNrM5DQ@public.gmane.org> 2011-04-20 03:26:09 PDT ---
Created an attachment (id=45853)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=45853)
XServer log file

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[Bug 36416] External monitor connected to docking station gets no signal, although recognized

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

https://bugs.freedesktop.org/show_bug.cgi?id=36416

--- Comment #3 from Alexander Diewald <alex-LJ/xIhIu6xqjKv3TNrM5DQ@public.gmane.org> 2011-04-20 03:26:39 PDT ---
Created an attachment (id=45854)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=45854)
xrandr query

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[Bug 36416] External monitor connected to docking station gets no signal, although recognized

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

https://bugs.freedesktop.org/show_bug.cgi?id=36416

--- Comment #4 from Ben Skeggs <skeggsb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 2011-04-20 03:38:22 PDT ---
Can you mail the vbios image from /sys/kernel/debug/dri/0/vbios.rom ("mount -t
debugfs debugfs /sys/kernel/debug" if not already done) to
mmio.dumps-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, and mention this bug number in the subject.

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[Bug 36416] External monitor connected to docking station gets no signal, although recognized

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

https://bugs.freedesktop.org/show_bug.cgi?id=36416

--- Comment #5 from David Schoen <neerolyte-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 2011-07-28 04:43:30 PDT ---
(In reply to comment #4)
> Can you mail the vbios image from /sys/kernel/debug/dri/0/vbios.rom ("mount -t
> debugfs debugfs /sys/kernel/debug" if not already done) to
> mmio.dumps-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, and mention this bug number in the subject.

I'm experiencing the same bug, the second monitor does function via the
proprietary nvidia driver and if I switch the DVI connections to both monitors
the one that's stating no signal swaps around with nouveau, so I don't suspect
any hardware faults.

I've posted my vbios.rom here:
http://lyte.id.au/stuff/vbios.rom.gz

I can email it directly as well if required...

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[Bug 36416] External monitor connected to docking station gets no signal, although recognized

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=36416

Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> changed:

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

--- Comment #6 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
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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