HDMI is not working on Ubuntu 23.04

Graphics / Linux Linux
1

Hello.
My external screen doesn’t work when connect to my laptop.
My current config is:

○ uname -a
Linux tawa 6.2.0-36-generic #37-Ubuntu SMP PREEMPT_DYNAMIC Wed Oct  4 10:14:28 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

○ prime-select query                                  
nvidia

Here all nvidia drivers available in Ubuntu 23.04. I’ve tried 535, 525 and 470 without success.

○ ubuntu-drivers devices                              
== /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0 ==
modalias : pci:v000010DEd00001FB6sv000017AAsd000022F7bc03sc02i00
vendor   : NVIDIA Corporation
model    : TU117GLM [T600 Laptop GPU]
driver   : nvidia-driver-470 - distro non-free
driver   : nvidia-driver-535-server-open - distro non-free
driver   : nvidia-driver-525-open - distro non-free
driver   : nvidia-driver-525 - distro non-free
driver   : nvidia-driver-470-server - distro non-free
driver   : nvidia-driver-525-server - distro non-free
driver   : nvidia-driver-535-server - distro non-free
driver   : nvidia-driver-535 - distro non-free recommended
driver   : nvidia-driver-535-open - distro non-free
driver   : xserver-xorg-video-nouveau - distro free builtin

Please, find enclosed the nvidia-bug-report.

I appreciate your support.
Regards.
nvidia-bug-report.log.gz (310.3 KB)

2

The nvidia gpu doesn’t have any outputs, the internal display and all external connectors are driven by the intel igpu and its i915 driver. All outputs show “disconnected” and the i915 driver doesn’t report any error. Did you try a different cable?

3

I appreciate your prompt reply.
I’ve tried a different HDMI cable and now it is working, however if I plug into my Laptop the USB cable used to power up the external screen, the screen flickers out and never stops.
Looks like that only works if I feed up the external screen using USB cable with an external power.

Anyway, now HDMI port works.
Thanks.