I have installed debian 8.6 on a pentium i5 with gigabyte z97x-sli motherboard and it worked very well. When I connected a Geforce GTX 1050Ti videocard then reinstalled debian 8.6 it installed well but when I rebooted it would not load anymore the system, just froze after checking the hard disk. Any idea how to make it work with the videocard? I tried it to use only through motherboard after that and it would only load linux command not the graphical interface (once and then the second time would not display even the command line). I know I could reinstall it without the videocard but I want to use the videocard

This is the video driver you need. Is this what you have installed?

From this link.-->http://www.nvidia.com/Download/drive...x/112992/en-us

Debian has its own proprietary nvidia drivers in the repositories. You just have to look at which version you need. The rest is pretty much automatic. Usually, installing the package is all you need.

This video card needs Bumblebee, there is a link in Debian wiki Nvidia graphics webpage.

For now, to get to a desktop, hit the e key at the grub menu to edit the kernel line, using arrow keys to navigate to the end of the kernel line which will have a long UUID number, possibly "ro quiet", add: , then hit F10 key to boot it.
This can also be added to /etc/default/grub after getting to a desktop or prompt followed by an command to have it boot this way again without adding to the kernel line at the grub menu.

BTW: The nouveau driver is used by Xorg on systems with Nvidia graphics, it's not all as great as many say, it is buggy on my two machines with Nvidia GTS 8600, and Nvidia GTX 970M. You'll definitely appreciate Nvidia graphics drivers. Visit Debian Nvidia wiki after you stop it from freezing with nouveau.

This is a desktop, Bumblebee is for laptops with two video adapters. One is usually a lower power Intel and the second is a higher power consuming Nvidia chip set.

This is the motherboard the op has -->http://www.gigabyte.com/products/pro...px?pid=4957#sp

Did install the nvidia-driver but then when I connect to the nvidia videocard will now be able to have command line but still will not boot on graphical interface. It did say it installed the driver but when I clicked on it it ask me to run nvidia-xconfig as root (what is the actual command line to do that and do I really need to do it?). Anyway I got a small progress being able to get a command line on the screen when I boot connected to the graphic card but still not able to boot in KDE. I tried to install then the nvidia drivers from nvidia but it tells me it conflicts with the ones already installed. Any sugestions?

Did you run nvidia-xconfig as root? As in log in as root and run that command in the terminal then reboot? That should get you started at least. If not then it may be that your driver version is too old.

I asked this in post #2. You have not answered that. You may have the wrong driver installed.

Have a look here --> for information on drivers. There is a section for each driver telling you what hardware is supported with each driver. The newer the card, the newer the driver that is required. You can also have problems with the kernel and driver combinations.

So, what distro and version are you running? What kernel version?

Yes, this is normal. The driver installation will remove the old driver when installing the new one. It will also remove the nouveau ( if its installed ) driver. This is the open source driver, the two conflict.

If your distro has the correct driver in its repos, that is the best one to have installed. That way your distros package manager can keep you up to date.

I use the binary blob from Nvidia. I find that easier to maintain than using Slackwares repos for Nvidia. That is just my experience. Your choice.

nvidia-xconfig is not installed with nvidia-driver, it has to be specified. In other words, apt-get install nvidia-xconfig, then the command to run it is .
And Debian nvidia wiki has lots of great advice. Like letting you know the default nvidia packages for Debian 8 do not support that card. You have to install version 375.26 from Debian testing/sid, that version supports your card.
You'll have to add a line for stretch in your /etc/apt/sources.list, only non-free and contrib, not main. Then run apt-get update, then install nvidia-driver and nvidia-xconfig with command: Or remove with apt the nvidia-driver package you currently have installed and install the .run package from Nvidia web site.

To remove an existing .run package from Nvidia site, issue same command as in installation only append "--uninstall" after the name of the package in the command. If I remember, installing from repos will automatically blacklist nouveau, installing from .run script, you have to blacklist nouveau before everything is set to go.

If you manage to get whatever nvidia setup you have installed uninstalled, you could be at a desktop real quick by following my advice in my first post. Then do some homework.

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