I just did a fresh install of ubuntu 16.04 on my machine, which has a nvidia gefore gt610 graphics card.After the ubuntu installation the display is working nicely, but I had no sound (by hdmi). The device was listed in the sound config tool and selected, but although I can change the volume, there is no sound.
So after some reading on the web I decided to install a nvidia driver. So after some playing around I did
sudo ubuntu-drivers devices
sudo apt-get install nvidia-370
reboot
And suddently I had a visual and my sound was finally working. (I first install 304 and 340, but those didn't work correctly). When I booted today again my display stopped working. During booting it hangs saying something like nvidia persistence stopping.
So I removed and rebooted, I had again visual but no sound. But installing the 370 driver again results in the same result.
I'm not sure what to do next. I can ssh to the machine, so I can do all the commands I want to ..
Any ideas?