62fd182272
Commit 712ec30cd9be1f180c3789e7e6a042c5f7b5781d added the logic to only choose EGL configs that match the GBM_FORMAT_XRGB8888 pixel format. However, there won't be any EGL config satisfying such criteria for non-GBM backends, such as EGLDevice. This change will let us choose the first EGL config for the EGLDevice backend, while still forcing GBM_FORMAT_XRGB8888 configs for the GBM one. Related to: https://gitlab.gnome.org/GNOME/mutter/issues/2 (cherry picked from commit 1bf2eb95b502ed0419b0fe8979c022cacaf79e84)