Hardware EGL not working on Wayland (libEGL warning: egl: failed to create dri2 screen)

Graphics / Linux Linux
1

With 535.86.05 driver on Fedora 38 hardware EGL is not working on Wayland and EGL falls back to software:

$ eglinfo
--snip--
X11 platform:
libEGL warning: egl: failed to create dri2 screen
EGL API version: 1.5
EGL vendor string: Mesa Project
EGL version string: 1.5
EGL client APIs: OpenGL OpenGL_ES 
EGL driver name: swrast
EGL extensions string:
    EGL_ANGLE_sync_control_rate EGL_EXT_create_context_robustness
    EGL_KHR_cl_event2 EGL_KHR_config_attribs
    EGL_KHR_context_flush_control EGL_KHR_create_context
    EGL_KHR_create_context_no_error EGL_KHR_fence_sync
    EGL_KHR_get_all_proc_addresses EGL_KHR_gl_colorspace
    EGL_KHR_gl_renderbuffer_image EGL_KHR_gl_texture_2D_image
    EGL_KHR_gl_texture_3D_image EGL_KHR_gl_texture_cubemap_image
    EGL_KHR_image_base EGL_KHR_no_config_context EGL_KHR_reusable_sync
    EGL_KHR_surfaceless_context EGL_EXT_pixel_format_float
    EGL_KHR_wait_sync EGL_MESA_configless_context EGL_MESA_drm_image
    EGL_MESA_query_driver

Readme mentions that EGL_EXT_platform_x11 is unsupported. Is falling back to software rendering the manifestation of that? Or is it a separate problem? Thanks.

1 Like
2

Reproduction instructions:

  1. build bgfx: Building — bgfx 1.121.8531 documentation with the following change:
diff --git a/makefile b/makefile
index 06e6573e1..ce0d58706 100644
--- a/makefile
+++ b/makefile
@@ -113,7 +113,7 @@ wasm-release: .build/projects/gmake-wasm ## Build - Emscripten Release
 wasm: wasm-debug wasm-release ## Build - Emscripten Debug and Release
 
 .build/projects/gmake-linux:
-       $(GENIE) --with-tools --with-combined-examples --with-shared-lib --gcc=linux-gcc gmake
+       $(GENIE) --with-tools --with-combined-examples --with-shared-lib --with-sdl --with-wayland --gcc=linux-gcc gmake
 linux-debug64: .build/projects/gmake-linux ## Build - Linux x64 Debug
        $(MAKE) -R -C .build/projects/gmake-linux config=debug64
 linux-release64: .build/projects/gmake-linux ## Build - Linux x64 Release
  1. cd examples/runtime
  2. SDL_VIDEODRIVER=x11 ../../.build/linux64_gcc/bin/examplesDebug --gl
  3. pick 14-shadowvolumes

Under XWayland, due to software rendering, the scene is rendered at around 23-24 FPS. Under native X11, with VSync turned off (with F7), I am getting around 350 FPS with my 2070.

3

Readme mentions that EGL_EXT_platform_x11 is unsupported. Is falling back to software rendering the manifestation of that?

Indeed it is. For what it’s worth, this feature is being actively worked on right now.

1 Like
4

This seems to be fixed in 545.29.02, is this expected?