If you're running 's development branch (main, tracking git) on a device with split display controller and gpu (like the with and mxsfb / dcss) make sure to set


in ~/.phoshdebug as otherwise GTK4 (and lots of other things) will fail to render anything. GTK3 and itself will work fine.

This doesn't apply when you run nested of e.g. with intel graphics.


If you're not developing for phosh or phoc you can ignore this and the above entirely.

Background is that check_import_dmabuf in wlr_linux_dmabuf_v1.c picks the wrong node for it's validation (gitlab.freedesktop.org/wlroots) so we have to help it a little bit for the time being.

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