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I tried installing Cuda 10.1 according to the instructions on the site. After that, I made a simple C program to test out nvcc, and it said I didn't have some nvidia-cuda package installed.

I installed it with apt-get, and the download completed with one error, that nvidia-cuda-dev couldn't be installed.

Now I can't open nvidia-settings, because nvidia-cuda-dev has an unmet dependency, and I can't remove all nvidia pakcages with apt purge, because nvidia-cuda-dev has an unmet dependency.

Not sure what to do next, I'll be here a while.

P.S : I've also tried using 

sudo apt --fix-broken install

but it says nvidia-cuda-dev is going to be installed, but then says :

dpkg: error processing archive /var/cache/apt/archives/nvidia-cuda-dev_9.1.85-3ubuntu1_amd64.deb (--unpack): trying to overwrite '/usr/include/cublas.h' which is also in package libcublas-dev 10.2.1.243-1
dpkg-deb: error: paste subprocess was killed by signal (Broken pipe) 
Errors were encountered while processing: /var/cache/apt/archives/nvidia-cuda-dev_9.1.85-3ubuntu1_amd64.deb 
E: Sub-process /usr/bin/dpkg returned an error code (1)
damadam
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LeBigg Macq
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2 Answers2

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I found what was going on: I had turned my nvidia-settings to use only intel card, I had to go into root to toggle that, and then restart. Then the packages could be uninstalled. I'll post the forum that I read this from.

LeBigg Macq
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your package system is broken.

first aid. 

sudo mv /usr/include/cublas.h $HOME

moves file in user home. 2 packages containing the same file.

sudo dpkg --configure -a && sudo apt -f install

After that, one of the package has to be removed. libcublas-dev 10.2.1.243-1 or nvidia-cuda-dev_9.1.85-3ubuntu1.

nobody
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  • Hello. I tried your instructions, but I am getting the unmet dependency error from the second step for nvidia-cuda-toolkit (which needs nvidia-cuda-dev). sudo apt purge libcublas* seemed to fix it, even though I had already purged the specific library in the error (There were three other libcubla packages).

    I have solved this problem, I just hope I haven't caused any other problems in doing so.

     – Joseph Brandenburg Apr 29 '20 at 19:15