USB-C Dongle HDMI port not recognised

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nutmax
Posts: 1
Joined: 2020/11/05 08:21:09

USB-C Dongle HDMI port not recognised

Post by nutmax » 2020/11/05 08:54:51

Hello,

I bought an USB type c dongle with an HDMI port on it for my laptop. All of the USB ports on it work fine. Only the HDMI port does not work under Centos 7, it does, however, work with Ubuntu 20.04. I already tried running the latest kernel from the epel repos with no success.
The dongle in question is this one: https://www.amazon.de/-/en/dp/B07YZ4THMK

While running kernel 3.10.0 I get the following outputs:

Output from lsusb:

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Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 0bda:b00c Realtek Semiconductor Corp. 
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 005: ID 0bda:8153 Realtek Semiconductor Corp. RTL8153 Gigabit Ethernet Adapter
Bus 002 Device 004: ID 2109:0817 VIA Labs, Inc. 
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 04f2:b6b6 Chicony Electronics Co., Ltd 
Bus 001 Device 002: ID 06cb:00e7 Synaptics, Inc. 
Bus 001 Device 013: ID 2109:8888 VIA Labs, Inc. 
Bus 001 Device 011: ID 046d:c077 Logitech, Inc. M105 Optical Mouse
Bus 001 Device 012: ID 046d:c31c Logitech, Inc. Keyboard K120
Bus 001 Device 010: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 001 Device 009: ID 2109:2817 VIA Labs, Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
This is what I get from dmesg right after plugging in:

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[ 1878.697050] usb 1-1: new high-speed USB device number 22 using xhci_hcd
[ 1878.823884] usb 1-1: New USB device found, idVendor=2109, idProduct=2817, bcdDevice= 3.a3
[ 1878.823892] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1878.823895] usb 1-1: Product: USB2.0 Hub             
[ 1878.823898] usb 1-1: Manufacturer: VIA Labs, Inc.         
[ 1878.858148] hub 1-1:1.0: USB hub found
[ 1878.858634] hub 1-1:1.0: 5 ports detected
[ 1879.052315] usb 2-1: new SuperSpeed Gen 1 USB device number 10 using xhci_hcd
[ 1879.066366] usb 2-1: New USB device found, idVendor=2109, idProduct=0817, bcdDevice= 3.a3
[ 1879.066375] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1879.066380] usb 2-1: Product: USB3.0 Hub             
[ 1879.066383] usb 2-1: Manufacturer: VIA Labs, Inc.         
[ 1879.098184] hub 2-1:1.0: USB hub found
[ 1879.098422] hub 2-1:1.0: 4 ports detected
[ 1879.622384] usb 1-1.1: new high-speed USB device number 23 using xhci_hcd
[ 1879.759599] usb 1-1.1: New USB device found, idVendor=1a40, idProduct=0101, bcdDevice= 1.11
[ 1879.759609] usb 1-1.1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[ 1879.759613] usb 1-1.1: Product: USB 2.0 Hub
[ 1879.818516] hub 1-1.1:1.0: USB hub found
[ 1879.818749] hub 1-1.1:1.0: 4 ports detected
[ 1879.822131] usb 2-1.4: new SuperSpeed Gen 1 USB device number 11 using xhci_hcd
[ 1879.833761] usb 2-1.4: New USB device found, idVendor=0bda, idProduct=8153, bcdDevice=31.00
[ 1879.833769] usb 2-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=6
[ 1879.833773] usb 2-1.4: Product: USB 10/100/1000 LAN
[ 1879.833776] usb 2-1.4: Manufacturer: Realtek
[ 1879.833778] usb 2-1.4: SerialNumber: 001000001
[ 1879.994006] usb 2-1.4: reset SuperSpeed Gen 1 USB device number 11 using xhci_hcd
[\code]

Also the port does not show up when running xrandr -q.
The machine I am running is a HP envy x360 with an AMD 4500U.

Do you have ideas on how to make it work?
Thank you!

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