LG monitor does not work with LG GRAM 16 Laptop when connected to USB C, but works fine with HDMI connection

[robertkibet]

Hello,

I have connected a Camera and a Microphone directly to the monitor and was hoping to use the USB-C port connection to extend my laptop display to the monitor since the monitor supports USB-C. Unfortunately, only the Microphone and Camera are detected, but the display/video is not showing on the monitor.

The display works only when I connect the monitor to the laptop using HDMI.

$ uname -a
Linux bob 6.11.0-19-generic #19~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Mon Feb 17 11:51:52 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 0bda:5641 Realtek Semiconductor Corp. LG Camera
Bus 003 Device 003: ID 0bda:5411 Realtek Semiconductor Corp. RTS5411 Hub
Bus 003 Device 004: ID 27c6:6a94 Shenzhen Goodix Technology Co.,Ltd. Goodix USB2.0 MISC
Bus 003 Device 005: ID 8087:0026 Intel Corp. AX201 Bluetooth
Bus 003 Device 006: ID 31b2:0011 DCMT Technology USB Condenser Microphone
Bus 003 Device 007: ID 0416:5035 Winbond Electronics Corp. C2D Camera
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub

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Starting Debug ...

Did you read Post Installation Guide? https://github.com/AdnanHodzic/displaylink-debian/blob/master/docs/post-install-guide.md [y/N] y

Did you read Troubleshooting most common issues? https://github.com/AdnanHodzic/displaylink-debian/blob/master/docs/common-issues.md [y/N] y

--------------- Linux system info ----------------

Distro: Ubuntu
Release: noble
Kernel: 6.11.0-19-generic

---------------- DisplayLink info ----------------

Driver version: 1.14.7
DisplayLink service status: up and running
EVDI service version: 1.14.7

------------------ Graphics card -----------------

Vendor: i915
Subsystem: TigerLake-LP
VGA: Intel Corporation TigerLake-LP GT2 [Iris Xe Graphics] (rev 03)
VGA (3D): 
X11 version: 21.1.12-1ubuntu1.2

-------------- DisplayLink xorg.conf -------------

File: /etc/X11/xorg.conf.d/20-displaylink.conf
cat: /etc/X11/xorg.conf.d/20-displaylink.conf: No such file or directory
Contents:
 

-------------------- Monitors --------------------

Providers: number : 0

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I followed the postinstallation guidelines, and I have tested both suggestions from this and also this post, and none have worked, including completly removing the .conf file as suggested.

I appreciate any guidance towards making this work out of the box with USB-C. Thank you so much 🙏