[systemd-devel] Start service after video drivers have been loaded

[Germano Massullo]

Il giorno lun 17 giu 2019 alle ore 11:07 Lennart Poettering
<lennart at poettering.net> ha scritto:
>
> On So, 09.06.19 19:45, Germano Massullo (germano.massullo at gmail.com) wrote:
>
> > Il giorno mar 21 mag 2019 alle ore 16:59 Mantas Mikulėnas
> > <grawity at gmail.com> ha scritto: > Actually, maybe having udev
> > > trigger BOINC startup would be a good option? After all that's how
> > > BlueZ already works -- it doesn't go in multi-user.target, it has
> > > WantedBy=bluetooth.target and there's an udev rule that makes every
> > > Bluetooth device pull in bluetooth.target as a dependency. And
> > > that's already an official systemd thing, too.
> >
> > No because BOINC client can even run on systems without graphic card.
> > I will try an approach of restarting BOINC client as soon a new
> > dev-dri-card0.device appears
>
> The clean way to handle this is to make your software handle hardware
> dynamically internally: make use of the graphics devices it can make
> use of the moment they pop up, and not earlier, and do so with any
> device showing up, regardless if there are zero initially, one
> eventually, or even more...
>
> systemd is not really designed to be used as work-around for software
> that deals with hardware but doesn't really understand that hw is
> dynamic these days.
>
> Hence my recommendation would be to work with the upstream developers
> of your project to natively hook up things with libudev or a similar
> library to watch for devices popping up and going away.

Good, thank you very much for clarifing this.
Have a nice day!
>
> Lennart
>
> --
> Lennart Poettering, Berlin