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Technology Reviews

No video display on one external monitor

Good morning,

Apologies if this is not the correct forum.

I am wondering if someone is able to help; an issue has appeared with my work laptop very suddenly. I left my laptop for an hours break, came back & there was no display on the external monitor.

The system did upgrade from 20.04 LTS to 22.04 recently but the display seemed to work.

Objective: output display on HDMI
Problem: Cannot display on external monitor; note hooking up to a TV using the same cable on HDMI works. The monitor in question itself is working just fine as it works with my other linux distro & Windows PC that I have.
Attempts: Re-install kernel & headers & nvidia drivers
Kernel: 5.17.0-1003-oem
Driver ver: 520.56.06

I am not able to upload the nvidia bug report file so I can paste parts if needed?

Fri Nov 11 09:28:54 2022
±—————————————————————————-+
| NVIDIA-SMI 520.56.06 Driver Version: 520.56.06 CUDA Version: 11.8 |
|——————————-±———————±———————+
| 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 T600 Lap… Off | 00000000:01:00.0 Off | N/A |
| N/A 49C P0 N/A / N/A | 4MiB / 4096MiB | 0% Default |
| | | N/A |
±——————————±———————±———————+
±—————————————————————————-+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|================================================= ============================|
| 0 N/A N/A 2909 G /usr/lib/xorg/Xorg 4MiB |
±—————————————————————————-+
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
eDP-1 connected primary 1920×1080+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
1920×1080 60.05*+ 60.01 59.97 59.96 59.93
1680×1050 59.95 59.88
1600×1024 60.17
1400×1050 59.98
1600×900 59.99 59.94 59.95 59.82
1280×1024 60.02
1440×900 59.89
1400×900 59.96 59.88
1280×960 60.00
1440×810 60.00 59.97
1368×768 59.88 59.85
1360×768 59.80 59.96
1280×800 59.99 59.97 59.81 59.91
1152×864 60.00
1280×720 60.00 59.99 59.86 59.74
1024×768 60.04 60.00
960×720 60.00
928×696 60.05
896×672 60.01
1024×576 59.95 59.96 59.90 59.82
960×600 59.93 60.00
960×540 59.96 59.99 59.63 59.82
800×600 60.00 60.32 56.25
840×525 60.01 59.88
864×486 59.92 59.57
800×512 60.17
700×525 59.98
800×450 59.95 59.82
640×512 60.02
720×450 59.89
700×450 59.96 59.88
640×480 60.00 59.94
720×405 59.51 58.99
684×384 59.88 59.85
680×384 59.80 59.96
640×400 59.88 59.98
576×432 60.06
640×360 59.86 59.83 59.84 59.32
512×384 60.00
512×288 60.00 59.92
480×270 59.63 59.82
400×300 60.32 56.34
432×243 59.92 59.57
320×240 60.05
360×202 59.51 59.13
320×180 59.84 59.32
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)

Many thanks in advance.