nvidia-340 incapable of single user mode in 20.04

[Dimitri John Ledkov]

On Mon, 20 Apr 2020 at 20:53, Jack Howarth
<howarth.mailing.lists at gmail.com> wrote:
>
>       I am finding on a 2008 MacPro with GTX680 that the installation of the nvidia-340 package under Ubuntu 20.04 prevents single user mode boots from working. While the nvidia-340 driver works fine from a normal boot, when 'single' is added before 'quiet' in the grub kernel arguments, the boot produces a black screen that never returns the expected single user mode prompts.
>      A parallel test with current Ubuntu 18.04 with either the stock nvidia-340 340.107-0ubuntu0.18.04.4 package or the nvidia-graphics-drivers-340 340.108-0ubuntu0.18.04.1 show both of them can successfully boot into single user mode.
>                     Jack

nvidia-340 is a very old version of nvidia.

20.04 LTS has: nvidia-driver-390, nvidia-driver-435, nvidia-driver-440.

Can you please use Super to search and launch "additional drivers"
select 440 driver and install and try that one? It is the recommended
version of nvidia on 20.04 LTS. Or whichever is highest and supports
your nvidia card.

-- 
Regards,

Dimitri.