Troubles installing CUDA on Ubuntu/GPU not detected

[Jman]

I recently started mining ETC on my gaming pc just to get my feet wet in the world of cryptos (and linux).  I installed the nvidia drivers and got Claymore's dual miner to start mining, but was only getting about 10.5 MH/s on my 980ti.  I attempted to install CUDA to potentially increase the rates, but was not able to get it to work.  Yesterday I came across this post in the mining sub-forum: 

It seemed promising so I followed the instructions posted.  I managed to get to the point where I just needed to set up the xorg connection, but ran into some issues.  After entering:

sudo apt-get install build-essential xserver-xorg p7zip xorg-dev libgtk-3-dev xdm

into the terminal, I was met with this response:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
build-essential is already the newest version (12.1ubuntu2).
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 xserver-xorg : Depends: xserver-xorg-core (>= 2:1.17.2-2)
E: Unable to correct problems, you have held broken packages.

 

Now my system is not picking up my graphics card and I'm not sure what to do from here.  Any help would be greatly appreciated

 

 

[MysticalGnome]

Try aptitude install -f and let it sort out the dependency issue.

[Jman]

58 minutes ago, MysticalGnome said:

Try aptitude install -f and let it sort out the dependency issue.

Tried.  Received this message:

No packages will be installed, upgraded, or removed.
0 packages upgraded, 0 newly installed, 0 to remove and 2 not upgraded.
Need to get 0 B of archives. After unpacking 0 B will be used.

 

[MysticalGnome]

You could try aptitude install build-essential xserver-xorg p7zip xorg-dev libgtk-3-dev xdm it will give you options for resolving the dependencies.