I am trying to connect my acer monitor to lenovo laptop for display using HDMI cable of acer monitor using this devise: https://www.amazon.in/Dell-DA100-USB-3-0-Multi-Adapter/dp/B00O0M46T0. It's not working. I can directly connect acer HDMI to the lenovo laptop, and it seem to work fine but with this multi adapter USB 3.0 it's not working. First, I thought there is some issue with the mutli-adapter, but I can connect my mouse or keyboard to the usb port of the multi-adapter and when connected to my laptop it works fine.So issue is with the HDMI port of the multi-adapter.
I searched for a solution, found this: https://www.synaptics.com/products/displaylink-graphics/downloads/ubuntu, so followed instructions here: https://www.synaptics.com/products/displaylink-graphics/downloads/ubuntu
I was able to install everything without any error. After this, I rebooted my system and inserted HMDI cable to USB 3.0 multi-adapter again to test, but still its not working.
Earlier on Ubuntu 20 I tested, I was having the same issue. Now I am running Ubuntu 21. Also, Ubuntu is my primary OS, I am not running any dual boot.
lsb_release -a command:
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 21.04
uname -a command:
Linux aamir-ThinkPad-T480 5.11.0-17-generic #18-Ubuntu SMP Thu May 6 20:10:11 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux