Issue resolved, for some reason, there remained installed a meta-package of previously installed version: nvidia-driver-440. Reproduced on 3 laptops already, the offending package stays the same and is blocking the Nvidia from updating.
After updating the OS as a whole, I rebooted, and issued:
apt-get purge nvidia-driver-440
Reading package ...
So, it turns out that this is a not-entirely-complete GPU. That is, it is a chipset that doesn't ship with a display connector, relying on an in-chip graphics chipset (i.e., Intel graphics) to do the display output. This is known as "NVidia OPTIMUS" (screaming by NVidia), and is supported under Linux through the "primus" driver.
In order ...
I've had the best results by doing the following for disabling nouveau
# edit /etc/default/grub
GRUB_CMDLINE_LINUX = [parameters]
# use any one or more of these as a parameter where each parameter is separated by a space.
# just keep your existing parameters and you can simply add all of these
# note: the rd.driver.blacklist=nouveau by itself seems to not ...
I had the same problem an I put here the solution I found, because it can help someone.
It seems to be a problem with the Intel driver.
The solution (in my case) was adding to the xorg.conf file, under the Section Device this line:
Option "AccelMethod" "uxa"
At least, my problem was solved in this way.
I got this information here:
A few words before: This is probably not a complete solution (but I don't have enough reputation here to write a comment to ask for more input) and you will maybe have to work without GUI for configuration or even temporarily disable your GUI for Linux - so don't be afraid of shell commands (and get familiar with a text mode editor).
The login is driven by ...
I solved the problem!
The good folks on Arch Linux forums identified the screen tearing inconsistencies I had with race conditions during the boot process. If the nvidia module loads properly, then I don't have screen tearing. But if it doesn't, then the computer reverts to some other driver (I'm pretty sure nouveau), and screen tearing occurs.
To fix that, ...