gbm/dri: Downgrade invalid modifier warning
Only specifying invalid modifiers is a valid method to discourage clients from using them. One such client is Mutter 3.38, see https://gitlab.gnome.org/GNOME/mutter/-/commit/cb05b164140dc6934ff5a00cb4354a5dbf4593ef
Downgrade the warning to debug-only.
Closes: #3651 (closed)
STR:
run weston-simple-dmabuf-egl
in a terminal. AMD users will start to see this after !6176 (merged)
Edited by Robert Mader