Warning: As of October 2020, the NVIDIA driver does not support the Linux kernel 5.9. - NVIDIA - ArchWiki
Maybe it is related to this - as kernel developers has stated a backport of the patchset blocking modules when they modules claim they are GPL but in fact they are not.
To understand this topic fully, we have to talk about opensource licenses in general. Every License has a purpose, specially when you do free software. There are several versions out there, which the blog post from Whitesource summarize pretty well.
[install-nvidia-driver]
So every programmer or company can choose their way on how to license their software most likely freely, if they code their application as a single self-contained piece of software. If you however work on a driver and reuse…
With kernel 5.9 from unstable darktable is not able to use opencl.
1# darktable -d opencl
0.116651 [opencl_init] opencl related configuration options:
0.116658 [opencl_init]
0.116659 [opencl_init] opencl: 1
0.116660 [opencl_init] opencl_scheduling_profile: 'default'
0.116662 [opencl_init] opencl_library: ''
0.116665 [opencl_init] opencl_memory_requirement: 768
0.116667 [opencl_init] opencl_memory_headroom: 400
0.116670 [opencl_init] opencl_device_priority: '*/!0,*/*/*/!0,*'
0.1…