21st October 2016, 6:18
My explanation applies to both the tty switching and the standby.
The standby not working all the time might be one consequence of the driver not working as it should all the time.
For the tty switching there is a potential fix by explictely telling the kernel to load the tty in a specific vga mode. See this thread here http://askubuntu.com/questions/487868/no...dia-driver
The nomodeset part usually should be handled by the nvidia driver itself (at least when you use the packages that ubuntu provides it blacklists nouveau so basically the same as nomodeset)
The standby not working all the time might be one consequence of the driver not working as it should all the time.
For the tty switching there is a potential fix by explictely telling the kernel to load the tty in a specific vga mode. See this thread here http://askubuntu.com/questions/487868/no...dia-driver
The nomodeset part usually should be handled by the nvidia driver itself (at least when you use the packages that ubuntu provides it blacklists nouveau so basically the same as nomodeset)