https://bugs.freedesktop.org/show_bug.cgi?id=110214
--- Comment #84 from Diego Viola diego.viola@gmail.com --- (In reply to Michel Dänzer from comment #83)
(In reply to Diego Viola from comment #82)
I found that I can't reproduce this bug with Xephyr -glamor_gles2 (git) but it still happens with -glamor.
Presumably the GL_NV_texture_barrier extension isn't available with GLES2, so this is the same as disabling that extension with OpenGL.
Makes sense, thanks.