nvidia driver installation

[kaippullavvs]

Hi,
I downloaded and installed sparky-semi-rolling-KDE-2022.10-1;
did Full upgrade
installed nvidia driver from debian repo (Ver 510.85).
Full upgrade and nvidia installation successfull. kernel module for the stock kernel 6.0.0-2-amd64 is made.
But when I boot the OS, Xorg.0.log emits

Code Select Expand

[    30.896] (**) NVIDIA(0): Enabling 2D acceleration
[    30.896] (II) Loading sub module "glxserver_nvidia"
[    30.896] (II) LoadModule: "glxserver_nvidia"
[    30.896] (II) Loading /usr/lib/xorg/modules/extensions/libglxserver_nvidia.so
[    31.539] (II) Module glxserver_nvidia: vendor="NVIDIA Corporation"
[    31.539] compiled for 1.6.99.901, module version = 1.0.0
[    31.539] Module class: X.Org Server Extension
[    31.539] (II) NVIDIA GLX Module  510.85.02  Tue Jul 12 16:46:27 UTC 2022
[    31.539] (II) NVIDIA: The X server supports PRIME Render Offload.
[    31.540] (--) NVIDIA(0): Valid display device(s) on GPU-0 at PCI:1:0:0
[    31.540] (--) NVIDIA(0):     DFP-0
[    31.540] (--) NVIDIA(0):     DFP-1 (boot)
[    31.541] (II) NVIDIA(0): NVIDIA GPU NVIDIA GeForce GT 1030 (GP108-A) at PCI:1:0:0
[    31.541] (II) NVIDIA(0):     (GPU-0)
[    31.541] (--) NVIDIA(0): Memory: 2097152 kBytes
[    31.541] (--) NVIDIA(0): VideoBIOS: 86.08.24.00.2f
[    31.541] (II) NVIDIA(0): Detected PCI Express Link width: 4X
[    31.541] (EE) NVIDIA(GPU-0): Failed to acquire modesetting permission.
[    31.541] (EE) NVIDIA(0): Failing initialization of X screen
[    31.541] (II) UnloadModule: "nvidia"
[    31.541] (II) UnloadSubModule: "glxserver_nvidia"
[    31.541] (II) Unloading glxserver_nvidia
[    31.541] (II) UnloadSubModule: "wfb"
[    31.541] (EE) Screen(s) found, but none have a usable configuration.
[    31.541] (EE)
Fatal server error:
[    31.541] (EE) no screens found(EE)
[    31.541] (EE)

I tried 390-legacy-nvidia-driver and also latest nvidia driver 515.76 dled from nvidia website (installed run file manually).
On all three ways, I get the same error.

PS. This happens also with sparky-semi-rolling-minimalGUI also

But When I install sparky-semi-rolling-gameover flavour, the same procedure works flawlessly.
Only difference is this flavour has XFCE Desktop.

Has anyone got luck in installing nvidia onto semi-rolling-kde or minimal-gui?
 
I am ready to give more info if asked.