Thank you for your reply!
Well, I know nvidia-xconfig is deprecated, but when you are desperate...
Also updating the kernel has been a desperate move... I've done it since updating the kernel in Lubuntu has solved several problems in this notebook, specially regarding the wifi adapter (also in this case).
Ok, now the lines quoted from journalctl:
giu 11 16:57:57 zambo-hp-debian systemd-modules-load[299]: Inserted module 'parport_pc'
giu 11 16:57:57 zambo-hp-debian systemd-modules-load[299]: modprobe: FATAL: Module nvidia-current not found in directory /lib/modules/5.5.0-0.bpo.2-amd64
giu 11 16:57:57 zambo-hp-debian systemd-modules-load[299]: modprobe: ERROR: ../libkmod/libkmod-module.c:979 command_do() Error running install command for nvidia
giu 11 16:57:57 zambo-hp-debian systemd-modules-load[299]: modprobe: ERROR: could not insert 'nvidia': Operation not permitted
giu 11 16:57:57 zambo-hp-debian systemd-modules-load[299]: modprobe: FATAL: Module nvidia-current-modeset not found in directory /lib/modules/5.5.0-0.bpo.2-amd64
giu 11 16:57:57 zambo-hp-debian systemd-modules-load[299]: modprobe: ERROR: ../libkmod/libkmod-module.c:979 command_do() Error running install command for nvidia_modeset
giu 11 16:57:57 zambo-hp-debian systemd-modules-load[299]: modprobe: ERROR: could not insert 'nvidia_modeset': Operation not permitted
giu 11 16:57:57 zambo-hp-debian systemd-modules-load[299]: modprobe: FATAL: Module nvidia-current-drm not found in directory /lib/modules/5.5.0-0.bpo.2-amd64
giu 11 16:57:57 zambo-hp-debian systemd-modules-load[299]: Error running install command for nvidia_drm
giu 11 16:57:57 zambo-hp-debian systemd-modules-load[299]: Failed to insert module 'nvidia_drm': Operation not permitted
giu 11 16:57:57 zambo-hp-debian systemd[1]: systemd-modules-load.service: Main process exited, code=exited, status=1/FAILURE
giu 11 16:57:57 zambo-hp-debian systemd[1]: systemd-modules-load.service: Failed with result 'exit-code'.
giu 11 16:57:57 zambo-hp-debian systemd[1]: Failed to start Load Kernel Modules.
and:
giu 11 16:57:58 zambo-hp-debian systemd-udevd[379]: Error running install command for nvidia
also:
giu 11 16:58:02 zambo-hp-debian systemd-modules-load[760]: modprobe: FATAL: Module nvidia-current not found in directory /lib/modules/5.5.0-0.bpo.2-amd64
giu 11 16:58:02 zambo-hp-debian systemd-modules-load[760]: modprobe: ERROR: ../libkmod/libkmod-module.c:979 command_do() Error running install command for nvidia
giu 11 16:58:02 zambo-hp-debian systemd-modules-load[760]: modprobe: ERROR: could not insert 'nvidia': Operation not permitted
giu 11 16:58:02 zambo-hp-debian systemd-modules-load[760]: modprobe: FATAL: Module nvidia-current-modeset not found in directory /lib/modules/5.5.0-0.bpo.2-amd64
giu 11 16:58:02 zambo-hp-debian systemd-modules-load[760]: modprobe: ERROR: ../libkmod/libkmod-module.c:979 command_do() Error running install command for nvidia_modeset
giu 11 16:58:02 zambo-hp-debian systemd-modules-load[760]: modprobe: ERROR: could not insert 'nvidia_modeset': Operation not permitted
giu 11 16:58:02 zambo-hp-debian systemd-modules-load[760]: modprobe: FATAL: Module nvidia-current-drm not found in directory /lib/modules/5.5.0-0.bpo.2-amd64
giu 11 16:58:02 zambo-hp-debian systemd-modules-load[760]: Error running install command for nvidia_drm
giu 11 16:58:02 zambo-hp-debian systemd-modules-load[760]: Failed to insert module 'nvidia_drm': Operation not permitted
giu 11 16:58:02 zambo-hp-debian systemd[1]: systemd-modules-load.service: Main process exited, code=exited, status=1/FAILURE
giu 11 16:58:02 zambo-hp-debian systemd[1]: systemd-modules-load.service: Failed with result 'exit-code'.
giu 11 16:58:02 zambo-hp-debian systemd[1]: Failed to start Load Kernel Modules.
indeed:
giu 11 16:58:03 zambo-hp-debian kernel: audit: type=1400 audit(1591887483.228:5): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe" pid=796 comm="apparmor_parser"
giu 11 16:58:03 zambo-hp-debian kernel: audit: type=1400 audit(1591887483.228:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe//kmod" pid=796 comm="apparmor_parser"
giu 11 16:58:03 zambo-hp-debian audit[796]: AVC apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe" pid=796 comm="apparmor_parser"
giu 11 16:58:03 zambo-hp-debian audit[796]: AVC apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe//kmod" pid=796 comm="apparmor_parser"
and:
giu 11 16:58:04 zambo-hp-debian nvidia-persistenced[849]: Failed to query NVIDIA devices. Please ensure that the NVIDIA device files (/dev/nvidia*) exist, and that user 116 has read and write permissions for th
giu 11 16:58:04 zambo-hp-debian nvidia-persistenced[849]: Shutdown (849)
giu 11 16:58:04 zambo-hp-debian nvidia-persistenced[846]: nvidia-persistenced failed to initialize. Check syslog for more details
and:
giu 11 16:58:06 zambo-hp-debian systemd[1]: nvidia-persistenced.service: Failed with result 'exit-code'.
giu 11 16:58:06 zambo-hp-debian systemd[1]: Failed to start NVIDIA Persistence Daemon.
with glxinfo I've discovered I'm using the integrated garphic card (HD Graphics Whiskey Lake 3x8 GT2)
In every desktop environment there is an option to manage eventual additional drivers; also in 'software-properties' (both qt and gtk) there is, usually, this menu. In this case, no...
Well, I've tried Debian 10 on another older notebook (with LXDE), and I was very intrigued... the notebook was a very special offer (499€)!!
