External monitor undetected in Ubuntu 18.04, Inspiron 5593, Nvidia GeForce MX230

Graphics / Linux Linux
1

The external HDMI monitor is unseen in my Ubuntu partition. Moreover I cannot change my display setting of the integrated monitor (resolution, refresh, etc.)

xrandr command reports:

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected primary 1920x1080+0+0 0mm x 0mm
1920x1080 77.00*

I tried several versions of nvidia drivers and x.org, I installed Ubuntu and Xubuntu, I tried lightdm and gdm3, nothing worked.

I found somebody having a similar issues in this thread: https://www.dell.com/community/Precision-Mobile-Workstations/External-Monitor-not-working-Ubuntu-nvidia/td-p/6241315 but the solution proposed doesn’t work.

Any advice?

attached the nvidia-bug-report.log
nvidia-bug-report.log.gz (1.08 MB)

2

It’s trucated, please attach as file. Hovering the mouse over an existing post of yours will reveal a paperclip icon.
https://devtalk.nvidia.com/default/topic/1043347/announcements/attaching-files-to-forum-topics-posts/

3

done… thanks to let me notice

done… thanks to let me notice

4

Your cpu is too new for the currently running kernel. Please upgrade to kernel 5.3 e.g. by installing the edge hwe
sudo apt-get install --install-recommends linux-generic-hwe-18.04-edge

5

Great! Thank you so much, now it works perfectly!