Nvidia Drivers crash Lightdm

[jrdobelmann]

After several months of trying to install nvidia-340 and cuda, I was finally able to get it to work. I noticed, however, that cuda was kind of slow. I tried changing the powermizer setting in nvidia-settings, but then shortly after, my computer crashed. Now, whenever I turn my computer on, lightdm will just show a black screen, and the only way to fix it is to go into a console and remove nvidia* and cuda*. After that it works fine, but whenever I try to reinstall the drivers, the same thing happens. I tried to purge nvidia and cuda, but lightdm still won't start unless I uninstall the packages. Is there any way I can get rid of this problem without reinstalling Ubuntu Studio?

[dino99]

have you tried gdm instead ?
install it if not yet, then sudo dpkg-reconfigure lightdm, and choose gdm

[jrdobelmann]

I tried installing the drivers with gdm, it makes no difference.

[dino99]

is your card able to use the 346 driver ? (more stable than 340)
maybe also some conflict with cuda: related to package(s) version installed that disturb lightdm

[jrdobelmann]

I was able to get the driver and cuda installed. I'm noticing cuda is stil kind of slow, but I'll work on fixing that later. Thank you.