Cannot render with NVIDIA on X11

[sonnyp]

Unfortunately I can't reproduce as I don't have an NVIDIA GPU but I thought I'd report this anyway.

The Snap of Epiphany doesn't work on X11 with NVIDIA proprietary drivers.

See https://floss.social/@plusmid@chaos.social/111970260672743424

The "Permission denied" errors happen when the nvidia gbm library is not installed.

You can find some technical details at https://bugs.webkit.org/show_bug.cgi?id=261874#c32