[elrepo] nvidia-detect users

[Andrew Simpson]

I use it during a kickstarted installation.  However, I can't use it in the
%pre section because I can't really install the RPM then.  However, I just
began thinking that I could extract the rpm contents and use nvidia-detect
directly in %pre.  I believe a version of X is in use during the install
process, so this probably wouldn't be a problem.  I could see a few fringe
cases where X might not be installed, though.  It would be nice if it would
function in those cases.
Andrew


On Sun, Mar 3, 2019 at 9:11 AM Phil Perry <phil at elrepo.org> wrote:

> Hi all,
>
> I have a question about how folks are using nvidia-detect, and wondered
> if anyone is using it from within a script or at install time before X
> is installed?
>
> One of the things nvidia-detect does is to check Xorg ABI comatibility
> with the nvidia driver. At present we do this by checking the Xorg log
> file (if it exists) for various strings to see if it has been logged. If
> the log file doesn't exist, or we can't match the search term, we can
> just return a soft error or unknown value. This allows nvidia-detect to
> work even if Xorg is not installed or has never been started.
>
> I have always felt this to be a rather crude way of returning the value
> for the Xorg ABI, and would rather call the inbuilt Xorg function that
> directly queries VendorRelease() directly and determine the ABI version
> from that. However, that is going to add some X11 dependencies to our
> package that would require certain X11 packages to be installed before
> nvidia-detect can be used.
>
> Would this affect the way you use nvidia-detect?
>
> I'm guessing if you are using nvidia-detect, you either already have
> Xorg installed, or are intending to install it, so this shouldn't cause
> an issue, but I want to check before making changes that could affect
> the way people are using the program.
>
> Phil
>
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