in Blender app there's no cuda available

[Pawel Grycz]

It's either Blender or more a latest linux kernels issue.

In ubuntu 17.10 I've tried new kernels via 'ukuu' app and everyhing was fine to linux kernel 4.15.11 but right from 4.15.12 no cuda were detected in Blender even I've added 'sudo adduser <existing user> video' in terminal and in ubuntu 18.04 under the kernel 4.15.0-20-generic it's the same issue, no cuda.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: blender (not installed)
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue May 1 15:17:06 2018
InstallationDate: Installed on 2018-05-01 (0 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=pl_PL.UTF-8
 SHELL=/bin/bash
SourcePackage: blender
UpgradeStatus: No upgrade log present (probably fresh install)

[Fnord Prefect (fnordprefect)]

In Ubuntu 20.04, it does work (for me) when you use the proprietary nvidia xorg driver and have nvidia-cuda-toolkit installed.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.