ThinkPad USB 3.0 dock: Graphics output not working / Monitor not detected.

asked 2016-04-28 10:08:53 -0600

florian gravatar image

updated 2016-04-28 11:27:24 -0600

Hi,

When I connect my Thinkpad X230 running Fedora 23 to my USB 3.0 dock, the external monitor is not detected. (everything else, sound, network, USB-keyboard, mouse, and usb flash drives work fine).

Monitor is connected over a VGA cable and adapter to DVI port of the docking station.

How can I possibly achieve this? And how to debug?

Output of lsusb:

Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 005: ID 5986:02d2 Acer, Inc 
Bus 001 Device 006: ID 0a5c:21e6 Broadcom Corp. BCM20702 Bluetooth 4.0 [ThinkPad]
Bus 001 Device 003: ID 147e:2020 Upek TouchChip Fingerprint Coprocessor (WBF advanced mode)
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 033: ID 17e9:4302 DisplayLink 
Bus 004 Device 032: ID 2109:0811 VIA Labs, Inc. Hub
Bus 004 Device 031: ID 2109:0811 VIA Labs, Inc. Hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 053: ID 2109:3431 VIA Labs, Inc. Hub
Bus 003 Device 051: ID 04b3:3025 IBM Corp. NetVista Full Width Keyboard
Bus 003 Device 050: ID 17ef:601d Lenovo 
Bus 003 Device 049: ID 2109:3431 VIA Labs, Inc. Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
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