Ubuntu 19 - 980 GTX - stuck to 1024x768 due to display not recognized

Intel 4790K
Asus ROG Hero VII
Nvidia GTX 980
32 Gb RAM
Display is a : Asus VX248H connected using HDMI cable
Fresh Ubuntu 19.10
Using the Nvidia driver 435
GTX 980 GTX recognized as model GM204

Display is stuck in 1024x768
Does not seem to be recognized

xrandr shows this :

gf@dirac:/usr/share/X11/xorg.conf.d$ xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1024 x 768, current 1024 x 768, maximum 1024 x 768
default connected primary 1024x768+0+0 0mm x 0mm
1024x768 76.00*

No problem under Windows 10 nor Fedora
Replaced the Fedora with Ubuntu and seems display is not recognized

I checked the path /usr/share/X11/xorg.conf.d/ for any suspicious like an Intel config file, but I have none there :

gf@dirac:/usr/share/X11/xorg.conf.d$ ls -l
total 24
-rw-r–r-- 1 root root 92 oct. 3 2019 10-amdgpu.conf
-rw-r–r-- 1 root root 206 oct. 10 15:55 10-nvidia.conf
-rw-r–r-- 1 root root 1350 oct. 8 11:43 10-quirks.conf
-rw-r–r-- 1 root root 92 oct. 3 2019 10-radeon.conf
-rw-r–r-- 1 root root 1429 août 13 2019 40-libinput.conf
-rw-r–r-- 1 root root 3039 avril 12 2019 70-wacom.conf

nvidia-bug-report.log (124.0 KB)

Please note : the attached .log file is to be renamed to “nvidia-bug-report.log.gz” before extraction.

You have secure boot enabled but not set up module signing. Please either disable secure boot in bios or enable module signing. Easiest to be done by reinstalling Ubuntu and choosing to “Install Third-Party Software”.

Gonna reinstall and try to add the nvidia driver after that
Thanks :)

Ok. Does not work.

I have reinstalled Ubuntu without installing the Nvidia driver.
After the reboot, Nouveau is used and display is HD and ok.

I went to “Additional Drivers” and selected the latest Nvidia driver. It tells me I have to set up a password for secure boot : I do. It tells me that password will be asked on next reboot.

I reboot, no password is asked.
I login into the system, no password is asked.

I am now back at being stuck at 1024x768 as soon I select the Nvidia driver and reboot.

The “SecureBoot” thing does not work : it asks for a password that is NOT asked after reboot.

I went into the bios, deleted all keys in the secure boot part
and turned this POS off.
Ubuntu now boots, display is OK, and I’m using the latest Nvidia driver.

Secure Boot my a**

Odd. Maybe some complication due to dual boot.