Black screen in external monitor via USB-C (or dock station) in Ubuntu 21.10 with TU117M [GeForce GTX 1650 Ti Mobile]


I have connected a external display with a USB-C to HDMI adapter and also tried through a Razer Chroma Thunderbolt 4 docking station. The display is recognized but shows no image (black screen) on extended display and when selecting the display as a single display.

What is very estrange is that it works in mirrored mode. But not as extended nor single display.

When using in extended mode, I can see the mouse cursor disappearing from the notebook display, bu no image is shown in the display. HDMI port directly works fine.

Also, I have dual boot and everything works fine in Windows (leaving me to believe there’s no hardware problem).

Thanks in advance for your help.


| NVIDIA-SMI 510.47.03 Driver Version: 510.47.03 CUDA Version: 11.6 |
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
| 0 NVIDIA GeForce … Off | 00000000:5A:00.0 Off | N/A |
| N/A 49C P0 17W / N/A | 364MiB / 4096MiB | 27% Default |
| | | N/A |

| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
| 0 N/A N/A 3677 G /usr/lib/xorg/Xorg 175MiB |
| 0 N/A N/A 10135 G /usr/bin/gnome-shell 88MiB |
| 0 N/A N/A 10796 G gnome-control-center 11MiB |
| 0 N/A N/A 12831 G …374687682206599646,131072 86MiB |
nvidia-bug-report.log.gz (293.5 KB)

All your outputs are connected to the intel igpu, so the nvidia driver shouldn’t have any influence on this. Does the monitor on the usb-c work if you switch to on-demand mode?

I just checked and it was already configured to on demand mode.

According to the log and the nvidia-smi output in your previous post, you were using performance mode.
Nevertheless, since this is an intel driver problem, you could try upgrading your kernel to check if that has been fixed.