Been using nvidia-331 (proprietary, tested) prior to updating drivers without problems. After this recent update, on restart Einstein@Home reported "No GPU Available" to do GPU tasks (they were CUDA work packets) and Blender reported me not having any CUDA or OpenCL devices available. I might also had an AMD OpenCL ICD installed which enabled me to see my CPU as on OpenCL device; now Blender doesn't even detect that.
Rolled back to legacy nvidia-304 (proprietary, tested) and uninstalled non-nvidia OpenCL ICD related items to get my CUDA/OpenCL working. As a test, I then upgraded back to nvidia-331-updates and ended up with the same "no gpu available' / no OpenCL device detected. It is from here, while changing driver to nvidia-331 (proprietary tested) that, during the installation towards the last 1/4 or so I get a "System Problem Detected" which has led me here. Summary: nvidia-331 (p/t) before package updates - all OK and working (may or may not have had an AMD OpenCL package installed - only nvidia cards and intel CPU in system) nvidia-331 (p/t) after updates - no CUDA/no OpenCL (random nvidia OpenCL ICD package addition/removal, I can't recall) nvidia-304 (p/t) CUDA/OpenCL working again nvidia-331-updates (p) no CUDA/no Opencl trying nvidia-331 (p/t) results in "System Problem Detected (this issue" and doesn't install fully -> property page shows me as still running nvidia-331-updates -=-=-= On an unrelated note, I can't install different video card drivers in Synaptic -> Repositories -> Additional Drivers page, it gets stuck at ~10%. It's the exact looking property panel that is in Dash -> System Settings -> Software & Updates. Maybe the panel's waiting for Synaptic to close (to release the lock on the package list?). -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-graphics-drivers-331 in Ubuntu. https://bugs.launchpad.net/bugs/1401350 Title: package nvidia-opencl-icd-331 (not installed) failed to install/upgrade: trying to overwrite '/usr/lib/x86_64-linux-gnu /libnvidia-opencl.so.331.113', which is also in package nvidia-opencl- icd-331-updates 331.113-0ubuntu0.0.4 Status in nvidia-graphics-drivers-331 package in Ubuntu: Confirmed Bug description: I had installed the following 2 things from nvidia's website: 1) The driver NVIDIA-Linux-x86_64-343.36.run 2) cuda_6.5.19_linux_64.run (skipping the driver) I have a new computer with a GTX 980 and I haven't been able to run anything with CUDA yet. Installing `nvidia-331' was a somewhat desperate attempt to get the CUDA samples to run. In any case, dpkg should probably not bomb, no matter how misguided my attempts are. ProblemType: Package DistroRelease: Ubuntu 14.04 Package: nvidia-opencl-icd-331 (not installed) ProcVersionSignature: Ubuntu 3.13.0-40.69-generic 3.13.11.10 Uname: Linux 3.13.0-40-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 Date: Wed Dec 10 20:54:53 2014 DuplicateSignature: package:nvidia-opencl-icd-331:(not installed):trying to overwrite '/usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.331.113', which is also in package nvidia-opencl-icd-331-updates 331.113-0ubuntu0.0.4 ErrorMessage: trying to overwrite '/usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.331.113', which is also in package nvidia-opencl-icd-331-updates 331.113-0ubuntu0.0.4 InstallationDate: Installed on 2014-12-10 (0 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) SourcePackage: nvidia-graphics-drivers-331 Title: package nvidia-opencl-icd-331 (not installed) failed to install/upgrade: trying to overwrite '/usr/lib/x86_64-linux-gnu/libnvidia-opencl.so.331.113', which is also in package nvidia-opencl-icd-331-updates 331.113-0ubuntu0.0.4 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331/+bug/1401350/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp