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After following all the instructions in CUDA Toolkit 11.1 Downloads, the last instruction

sudo apt-get -y install cuda

doesn't work for me.

Terminal shows this message:

The following packages have unmet dependencies:
 cuda : Depends: cuda-11-1 (>= 11.1.0) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

PS: I have an NVIDIA GTX 1660TI card in my computer.

Any solution please?

BeastOfCaerbannog
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Taha Sherif
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  • Does this answer your question? [Unable to correct problems, you have held broken packages](https://askubuntu.com/questions/223237/unable-to-correct-problems-you-have-held-broken-packages) – karel Oct 05 '20 at 16:02
  • Does anything not work after your dpkg -i install, which should have supplied all necessary files? Might have been a cut and paste error on Nvidia's part from their debnetwork install. – ubfan1 Oct 05 '20 at 16:12
  • same issue with Cuda 11.3 on Ubuntu 20.04 – rob Apr 30 '21 at 09:01

5 Answers5

27

I just ran into this issue and solved it by running the following commands:

sudo apt clean
sudo apt update
sudo apt purge nvidia-* 
sudo apt autoremove
sudo apt install -y cuda

Major thanks to this post on the Nvidia forums.

Matt Popovich
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    solved it for same issue for cuda 11.3 on Ubuntu 20.04 – rob Apr 30 '21 at 09:01
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    Matt, the post you referenced had `apt purge cuda` after `apt update`. Any reason you didn't use that step from the post you referenced? – user1045680 May 11 '21 at 16:23
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    @user1045680 Good question and good point. I normally try to do the least destructive thing possible when debugging things. If it fails, I then try again with more destruction! So I think I first ran it without `apt purge cuda` to see what would happen... it ended up working, and I posted it! Adding `apt purge cuda` would be a good second attempt if the above list of commands fails. – Matt Popovich May 12 '21 at 17:25
  • thanks matt, this solveddd it for me, Ubuntu 20.04 – Kuldip Chaudhari Jul 22 '22 at 15:13
  • The `sudo apt purge nvidia-* ` syntax doesnt work on zsh terminal. I had to use simple bash. – Souradeep Nanda Aug 06 '22 at 06:51
  • please revise your answer as i have tried this, on some PCs example(DELL) these command lines will send them through hell of reinstallations and black screens, i have been there myself. so please revise this answer. purging nvidia on DELL alienware will not only purge the graphics but also the wifi adapter. I hope there is a cleaner solution than this. – Karim Sherif Nov 21 '22 at 17:40
  • FYI, [these instructions](https://docs.nvidia.com/datacenter/tesla/tesla-installation-notes/index.html) are missing the `contrib` step from [here](https://developer.nvidia.com/cuda-downloads?target_os=Linux&target_arch=x86_64&Distribution=Debian&target_version=10&target_type=deb_network). Also need `sudo add-apt-repository contrib`. Nvidia needs more interns to clean up their docs. – Brian Wiley Feb 03 '23 at 17:12
12

I think the issue is the CUDA driver version. It looks like the installer tries to install the newest version 455.23.05 and the installation actually fails there.

I've solved it by first downloading the local installer and unselecting the CUDA driver installation, so it just installs the toolkit.

wget https://developer.download.nvidia.com/compute/cuda/11.1.0/local_installers/cuda_11.1.0_455.23.05_linux.run
chmod +x cuda_11.1.0_455.23.05_linux.run 
sudo ./cuda_11.1.0_455.23.05_linux.run

In the menu unselect the driver installation: enter image description here If not already done, add the nvidia repo as per instructions from the official website before installing the driver:

wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/cuda-ubuntu1804.pin
sudo mv cuda-ubuntu1804.pin /etc/apt/preferences.d/cuda-repository-pin-600
sudo apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/7fa2af80.pub
sudo add-apt-repository "deb https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/ /"
sudo apt-get update

Install the CUDA driver 450 manually:

sudo apt-get install cuda-drivers-450

Test by running nvcc -V In case nvcc is not found, don't forget to add it to your PATH: PATH=$PATH:/usr/local/cuda/bin

Roman Prytkov
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    I just added the "PATH=$PATH:/usr/local/cuda/bin" in my path and it works well now ! Thank you ! – Taha Sherif Oct 30 '20 at 08:35
  • Worked like a charm and yes you need setting PATH like Taha mentioned. – Dr. Mian Feb 19 '21 at 09:28
  • This really helped. The posts above (and below) talk of purging the machine of Cuda related material. Sadly, that didn't resolve the issue, but this approach did. – Anthony Nash Oct 18 '21 at 14:24
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You have to uninstall any nvidia driver before running sudo apt install -y cuda
To do so, got to "Software & Updates" -> "Additional drivers" -> Using X.Org X (nouveou)

d.lime
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As in the previous post, I run this for Ubuntu 20.04 Nvidia Quadro P520:

sudo apt clean 
sudo apt update

sudo apt purge nvidia-*  
sudo apt autoremove

Reboot your PC and run this:

sudo apt install -y cuda
Muhammad Aizzat Zakaria
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  • The OP asked about 18.04, will your solution work for this version ? – kanehekili May 08 '21 at 22:56
  • Seems to be a duplicate solution of my answer... I know you don't have enough reputation to leave comments, but this probably would have been best as a comment "can confirm this works on Ubuntu 20.04 with Nvidia Quadro P520". Glad it worked for you! – Matt Popovich Jul 26 '21 at 18:58
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What helped me in resolving this issue is that I installed up to dated version of the nvidia driver with command "sudo apt install nvidia-driver-NNN" and then pointed on it to be used from the Software & Updates - Additional Drivers

Levan Tsereteli
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