Cant make nvidia driver work on ubuntu20.04

Hi, on fresh KUbuntu 18.04 install, nvidia driver seems to be installed but shows errors:

# lshw -c video
*-display NON-RÉCLAMÉ     
 description: VGA compatible controller
 produit: Intel Corporation
 fabriquant: Intel Corporation
 identifiant matériel: 2
 information bus: pci@0000:00:02.0
 version: 02
 bits: 64 bits
 horloge: 33MHz
 fonctionnalités: pciexpress msi pm vga_controller bus_master cap_list
 configuration: latency=0
 ressources: mémoire:64000000-64ffffff mémoire:40000000-4fffffff portE/S:7000(taille=64) mémoire:c0000-dffff
 description: 3D controller
 produit: NVIDIA Corporation
 fabriquant: NVIDIA Corporation
 identifiant matériel: 0
 information bus: pci@0000:01:00.0
 version: a1
 bits: 64 bits
 horloge: 33MHz
 fonctionnalités: pm msi pciexpress bus_master cap_list rom
 configuration: driver=nvidia latency=0
 ressources: irq:16 mémoire:65000000-65ffffff mémoire:50000000-5fffffff mémoire:60000000-61ffffff portE/S:6000(taille=128) mémoire:66000000-6607ffff

# nvidia-settings

ERROR: Unable to load info from any available system

(nvidia-settings:4258): GLib-GObject-CRITICAL **: 02:29:05.228: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
** Message: 02:29:05.230: PRIME: No offloading required. Abort
** Message: 02:29:05.230: PRIME: is it supported? no

# lsmod|grep i915
i915                 1622016  0
i2c_algo_bit           16384  1 i915
drm_kms_helper        172032  2 nvidia_drm,i915
drm                   397312  4 drm_kms_helper,nvidia_drm,i915
video                  45056  1 i915# xdpyinfo | grep 'dimensions:' 
dimensions:    800x600 pixels (212x159 millimeters)

Thanks for your support

Found an answer here