package nvidia-opencl-icd-331 (not installed) failed to install/upgrade: a tentar sobre-escrever '/etc/OpenCL/vendors/nvidia.icd', que também está no pacote nvidia-opencl-icd-331-updates 331.38-0ubuntu7.1

[Maciej Bliziński]

After installing updates, I've rebooted my computer, and after rebooting the resolution on the monitor was wrong (too low) and after entering my password, the unity desktop would never appear.

I switch to the console mode (ctrl+alt+f1), and ran:

[some dpkg commands to see what packages are installed]
sudo apt-get install nvidia-331
[this failed]
sudo apt-get update
sudo apt-get upgrade
sudo reboot

The screen was wrong again, even worse (even lower resolution).

I switched to the console again and ran:

sudo apt-get install nvidia-331
[this succeeded now]
sudo modprobe nvidia
sudo service lightdm restart

The login screen appeared in the correct resolution.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: nvidia-opencl-icd-331 (not installed)
ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6
Uname: Linux 3.13.0-35-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64
Date: Wed Sep 3 18:53:11 2014
DuplicateSignature: package:nvidia-opencl-icd-331:(not installed):a tentar sobre-escrever '/etc/OpenCL/vendors/nvidia.icd', que também está no pacote nvidia-opencl-icd-331-updates 331.38-0ubuntu7.1
ErrorMessage: a tentar sobre-escrever '/etc/OpenCL/vendors/nvidia.icd', que também está no pacote nvidia-opencl-icd-331-updates 331.38-0ubuntu7.1
InstallationDate: Installed on 2012-12-10 (632 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
SourcePackage: nvidia-graphics-drivers-331
Title: package nvidia-opencl-icd-331 (not installed) failed to install/upgrade: a tentar sobre-escrever '/etc/OpenCL/vendors/nvidia.icd', que também está no pacote nvidia-opencl-icd-331-updates 331.38-0ubuntu7.1
UpgradeStatus: Upgraded to trusty on 2014-04-18 (138 days ago)