My laptop has NVIDIA GP107GLM [Quadro P620] gpu along with Intel UHD graphics.
lspci -nnk | grep -iA2 vga
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics (rev 05)
Subsystem: Lenovo Device 22a6
Kernel driver in use: i915
Kernel modules: i915
--
01:00.0 3D controller: NVIDIA Corporation GP107GLM [Quadro P620] (rev a1)
Subsystem: Lenovo GP107GLM [Quadro P620]
Kernel modules: nvidiafb, nouveau
04:00.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 2C 2018] (rev 06)
The driver installed is: nvidia-driver-515
Ubuntu kernel in use is: 5.10.0-1033-oem
I am unable to use the nvidia gpu and on running nvidia-smi it throws the below error.
NVIDIA-SMI has failed because it couldn’t communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.
even after running prime-select nvidia it seems like it is using the intel gpu
lshw -C display
*-display UNCLAIMED
description: 3D controller
product: GP107GLM [Quadro P620]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: latency=0
resources: memory:ad000000-adffffff memory:80000000-8fffffff memory:90000000-91ffffff ioport:3000(size=128)
*-display
description: VGA compatible controller
product: UHD Graphics
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
logical name: /dev/fb0
version: 05
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list rom fb
configuration: depth=32 driver=i915 latency=0 mode=3840x2160 visual=truecolor xres=3840 yres=2160
resources: iomemory:600-5ff iomemory:400-3ff irq:150 memory:6040000000-6040ffffff memory:4000000000-400fffffff ioport:4000(size=64) memory:c0000-dffff
I have tried switching off secure boot, installing cuda drivers, downgrading the driver version to 470 etc. but nothing seems to be working.
Any help is appreciated