External monitor not recognized when using USB-C cable

Hardware Support
1

Hi

I have a laptop with 3 internal SSDs

1 Win11
1 Zorin 16.2
1 data

I recently bought a 32 inches monitor with HDMI/Display Port and USB-C (that also provide 65W power to the laptop) and connect it to my laptop
I have no problem in using this monitor with the USB-C and Win11.
I cannot use the monitor when using the USB-C and Zorin 16.2...it work when using the HDMI...

Any idea why it does not work when connected with USB-C?

USB-C + WIn11: OK
USB-C + Zorin 16.2: NOK...the external monitor is simply not detected (not listed in Display settings)
HDMI + Zorin 16.2: OK
DP...not tested as I do not have DP port on my laptop

not urgent as it work with HDMI...however if there is an easy trick to make it work with USB-C would be happy...

2

Can you please relay the output of

uname -r

To check your kernel. It is safe to just go ahead and try running

sudo apt install linux-modules-extra-$(uname -r)

to ensure the needed packages are installed.

1 Like
3

Not sure if this will help:
sudo apt install gnome-shell-extension-multi-monitors
Better support for additional monitors in GNOME shell

5

uname -r gave me this: 5.15.0-60-generic
sudo apt install linux-modules-extra-$(uname -r) gave me this:

sudo apt install linux-modules-extra-$(uname -r)
[sudo] password for :
Reading package lists... Done
Building dependency tree
Reading state information... Done
linux-modules-extra-5.15.0-60-generic is already the newest version (5.15.0-60.66~20.04.1).
linux-modules-extra-5.15.0-60-generic set to manually installed.
The following packages were automatically installed and are no longer required:
coinor-libcbc3 coinor-libcgl1 coinor-libclp1 coinor-libcoinmp1v5
coinor-libcoinutils3v5 coinor-libosi1v5 gir1.2-animation-glib-0
gir1.2-ges-1.0 libanimation-glib0 libanimation0 libges-1.0-0 libjs-jquery
libjs-jquery-ui pitivi python-matplotlib-data python3-cycler
python3-kiwisolver python3-matplotlib python3-numpy python3-pyparsing
zorin-os-feedback
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

6

I did this sudo apt install gnome-shell-extension-multi-monitors

restarted the laptop...same as before...NOK with USB-C...

7

...not sure to understand your question...
the USB-C port on my laptop is a USB-C port...that's all what I can say...I doubt it would be part of the video card...by the way I think I have a GPU: GeForce GTX 1660 Ti while the monitor has something named AMD Freesynch...is that relevant for this case....?

9

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