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: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
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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