I recently ran into an issue where I am unable to use my GPU on my linux distribution (Ubuntu 20.04). I also noticed that my displaylink driver for my second monitor stopped working a couple of months ago.
(base) sean@sean-XPS-8940:~$ sudo lspci | grep -i vga
[sudo] password for sean:
00:02.0 VGA compatible controller: Intel Corporation Device 9bc5 (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation TU116 [GeForce GTX 1650 SUPER] (rev a1)
(base) sean@sean-XPS-8940:~$ sudo lspci -s 01:00.0 -v
01:00.0 VGA compatible controller: NVIDIA Corporation TU116 [GeForce GTX 1650 SUPER] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Dell TU116 [GeForce GTX 1650 SUPER]
Flags: fast devsel, IRQ 255
Memory at c4000000 (32-bit, non-prefetchable) [size=16M]
Memory at b0000000 (64-bit, prefetchable) [size=256M]
Memory at c0000000 (64-bit, prefetchable) [size=32M]
I/O ports at 4000 [size=128]
Expansion ROM at c5000000 [disabled] [size=512K]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [78] Express Legacy Endpoint, MSI 00
Capabilities: [100] Virtual Channel
Capabilities: [250] Latency Tolerance Reporting
Capabilities: [258] L1 PM Substates
Capabilities: [128] Power Budgeting <?>
Capabilities: [420] Advanced Error Reporting
Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
Capabilities: [900] Secondary PCI Express
Capabilities: [bb0] Resizable BAR <?>
Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia
(base) sean@sean-XPS-8940:~$ nvidia-smi
NVIDIA-SMI has failed because it couldn’t communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.
(base) sean@sean-XPS-8940:~$ dkms status
evdi, 1.11.0, 5.13.0-30-generic, x86_64: installed
evdi, 1.11.0, 5.13.0-48-generic, x86_64: installed
evdi, 1.11.0, 5.4.0-121-generic, x86_64: installed
nvidia, 515.48.07, 5.13.0-48-generic, x86_64: installed
I have tried multiple methods for reinstalling the drivers and checked to make sure that secure boot is off but nothing has worked so far. I was hoping someone might have a solution that I have not found yet.