Gentoo Packages

games-emulation/duckstation: Support DRM/KMS OpenGL contexts
games-emulation/libretro-ppsspp: Use the Graphics Buffer Manager for EGL on KMS.
gui-apps/wayvnc: enable GPU-side screencopy (experimental)
gui-apps/wl-mirror: Enable capturing with libgbm (generally more efficient).
gui-libs/neatvnc: Enable support for the Generic Buffer Manager (gbm)
media-libs/gst-plugins-base: Enable Graphics Buffer Manager based EGL windowing system support (requires egl and at least one of gles or opengl)
media-libs/mesa: Enable the Graphics Buffer Manager for EGL on KMS.
media-tv/kodi: Use the Graphics Buffer Manager for EGL on KMS.

games-emulation/libretro-ppsspp: Use the Graphics Buffer Manager for EGL on KMS.
gui-apps/wayvnc: enable GPU-side screencopy (experimental)
gui-apps/wl-mirror: Enable capturing with libgbm (generally more efficient).
gui-libs/neatvnc: Enable support for the Generic Buffer Manager (gbm)
media-libs/gst-plugins-base: Enable Graphics Buffer Manager based EGL windowing system support (requires egl and at least one of gles or opengl)
media-tv/kodi: Use the Graphics Buffer Manager for EGL on KMS.

Warning: USE flag 'gbm' is used in ebuilds/metadata but is not defined in profiles/use.desc
Warning: USE flag 'gbm' used by app-benchmarks/glmark2 but has no description in metadata.xml, use.local.desc or use.desc
Warning: USE flag 'gbm' used by games-emulation/ppsspp-libretro but has no description in metadata.xml, use.local.desc or use.desc
Warning: USE flag 'gbm' used by x11-base/kdrive but has no description in metadata.xml, use.local.desc or use.desc
Warning: USE flag 'gbm' used by x11-base/xlibre-server but has no description in metadata.xml, use.local.desc or use.desc
Warning: USE flag 'gbm' used by x11-base/xorg-server but has no description in metadata.xml, use.local.desc or use.desc

Package	Local Description (use.local.desc)	Metadata Description (metadata.xml)
app-benchmarks/glmark2	-	-
media-libs/gst-plugins-base	Enable Graphics Buffer Manager based EGL windowing system support (requires egl and at least one of gles or opengl)	Enable Graphics Buffer Manager based EGL windowing system support (requires egl and at least one of gles or opengl)
games-emulation/duckstation	-	Support DRM/KMS OpenGL contexts
media-libs/mesa	-	Enable the Graphics Buffer Manager for EGL on KMS.
gui-apps/wayvnc	enable GPU-side screencopy (experimental)	enable GPU-side screencopy (experimental)
gui-libs/neatvnc	Enable support for the Generic Buffer Manager (gbm)	Enable support for the Generic Buffer Manager (gbm)
media-tv/kodi	Use the Graphics Buffer Manager for EGL on KMS.	Use the Graphics Buffer Manager for EGL on KMS.
gui-apps/wl-mirror	Enable capturing with libgbm (generally more efficient).	Enable capturing with libgbm (generally more efficient).
games-emulation/ppsspp-libretro	-	-
x11-base/kdrive	-	-
games-emulation/libretro-ppsspp	Use the Graphics Buffer Manager for EGL on KMS.	Use the Graphics Buffer Manager for EGL on KMS.
x11-base/xlibre-server	-	-
x11-base/xorg-server	-	-

USE Flag: gbm