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Ica

Member

Registered: 2015-10-19

Posts: 9

[Solved]Mini DisplayPort not working with DisplayLink (ThinkPad T450s)

I've tried to install displaylink, as described at DisplayLink, to attach an external monitor. I think I've done everything right (I got it running on my ThinkPad T420s).

systemctl | grep displaylink

yields

displaylink.service                 loaded active running   DisplayLink Manager Service

so the service is running. Running

xrandr --listproviders

yields

Providers: number : 1
Provider 0: id: 0x47 cap: 0x2, Sink Output crtcs: 3 outputs: 5 associated providers: 0 name:modesetting

and

xrandr

outputs

Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
eDP-0 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 309mm x 174mm
   1920x1080     60.02*+
   1400x1050     59.98  
   1280x1024     60.02  
   1280x960      60.00  
   1024x768      60.04    60.00  
   960x720       60.00  
   928x696       60.05  
   896x672       60.01  
   800x600       60.00    60.32    56.25  
   700x525       59.98  
   640x512       60.02  
   640x480       60.00    59.94  
   512x384       60.00  
   400x300       60.32    56.34  
   320x240       60.05  
DisplayPort-0 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)
DisplayPort-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)

It says that the display port is not connected (even though it is).

Has anyone experienced any similar issues? Any hints how I could approach this problem?

Last edited by Ica (2015-10-24 21:35:10)

Ica

Member

Registered: 2015-10-19

Posts: 9

Re: [Solved]Mini DisplayPort not working with DisplayLink (ThinkPad T450s)

I just wanted to give you a heads up that I figured out my (incredibly stupid) mistake. As it turns out, my monitor has two display ports, one for input and one for output. As you might have guessed by now, I plugged in the cable at the output port.

Now everything is working perfectly.