I'm trying to connect an external monitor using the USB-C port and an adapter on my Asus laptop, using Ubuntu.
I know the setup (cable, adapter, monitor) are all working because I can connect it on a Dell laptop running the same Ubuntu version.
Here are some specs:
$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 20.04.1 LTS Release: 20.04 Codename: focal $ uname -a Linux bl-asus 5.4.0-58-generic #64-Ubuntu SMP Wed Dec 9 08:16:25 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
Notice how there's no Display Port in
$ xrandr Screen 0: minimum 320 x 200, current 1600 x 900, maximum 16384 x 16384 eDP-1 connected primary 1600x900+0+0 (normal left inverted right x axis y axis) 293mm x 165mm 1920x1080 60.05 + 60.01 59.97 59.96 59.93 1680x1050 59.95 59.88 1600x1024 60.17 ... etc 320x180 59.84 59.32 HDMI-1 disconnected (normal left inverted right x axis y axis)
My video card is an Intel UHD Graphics 620, which I believe supports a Display Port connection.
$ sudo lshw -c video *-display description: VGA compatible controller product: UHD Graphics 620 vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 07 width: 64 bits clock: 33MHz capabilities: pciexpress msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:128 memory:ee000000-eeffffff memory:d0000000-dfffffff ioport:f000(size=64) memory:c0000-dffff
Any ideas on how I can get it to recognize the Display Port and connect to an external monitor via USB-C?
EDIT: After testing what MacGuffin pointed below, it seems simply that my laptop (Asus UX330A) does not support video over USB-C. See: https://www.reddit.com/r/linuxhardware/comments/7o0lsv/usbc_functionality_on_asus_ux330ua/ and https://www.asus.com/support/FAQ/1042843/.