On Sun, Jun 25, 2023 at 5:43 AM Stephen Morris <samorris@netspace.net.au> wrote:
Hi,
     When we issue the command "sudo dnf upgrade" and it updates the
nvidia drivers, does the update of those drivers remove them from memory
and load the nouveau drivers?

Nvidia updates can be messy.   Did you reboot after the dnf upgrade?

It can take several minutes of background processing to prepare the nvidia
drivers, so it is recommended to wait 5 minutes after running "dnf upgrade"
before rebooting.   If you boot before the nvidia drivers are installed the system
may use the older nvidea drivers or fall back to nouveau (maybe depending on
how far the update progressed before you rebooted).  If you didn't reboot, the
system should continue running the old nvidia drivers until you reboot.
 
     I'm trying to understand why after doing the update a html 5 game
that requires hardware acceleration to run complained that hardware
acceleration was needed even though the browser was configured to use
hardware acceleration if available, but after a reboot the game then ran
fine in the browser.

You should check the version of the nvidea drivers you are currently using.
If you don't want to wait 5 minutes there are ways to determine that the installation
has finished, e.g, using journalctl.

--
George N. White III