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"Running on a software rasterizer (LLVMpipe), expect limited performance" (Ubuntu 18, GeForce GTX 1080) - Qt 5.13.1



  • Hello all,

    When I run the pure-qml wayland compositor example it's rendering with the software rasterizer, the machine has an GeForce GTX 1080 installed driver version 390.129. Is this a Qt build issue or something to do with the nvidia drivers?

    Could the wrong version of libEGL being loaded? and not picking up the nvidia version?

    Command line for running the example:

    QT_LOGGING_RULES=qt.qpa.gl=true QSG_INFO=1 QT_QPA_EGLFS_INTEGRATION=eglfs_kms QT_QPA_PLATFORM=eglfs ./pure-qml -platform eglfs
    

    I configured my Qt build like this:

    ./configure -opensource -confirm-license -v -platform linux-g++ -prefix /usr/local/qt5.13.1.src -eglfs -opengl es2 -kms -qpa eglfs -egl -nomake examples -nomake tests
    

    Output:

    Running on a software rasterizer (LLVMpipe), expect limited performance.
    qt.scenegraph.general: Using sg animation driver
    qt.scenegraph.general: Animation Driver: using vsync: 16.67 ms
    qt.scenegraph.general: texture atlas dimensions: 2048x2048
    qt.scenegraph.general: R/G/B/A Buffers:   8 8 8 0
    qt.scenegraph.general: Depth Buffer:      24
    qt.scenegraph.general: Stencil Buffer:    8
    qt.scenegraph.general: Samples:           0
    qt.scenegraph.general: GL_VENDOR:         VMware, Inc.
    qt.scenegraph.general: GL_RENDERER:       llvmpipe (LLVM 8.0, 256 bits)
    qt.scenegraph.general: GL_VERSION:        OpenGL ES 3.0 Mesa 19.1.4
    qt.scenegraph.general: GL_EXTENSIONS:     GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_APPLE_texture_max_level GL_EXT_base_instance GL_EXT_blend_func_extended GL_EXT_blend_minmax GL_EXT_clip_cull_distance GL_EXT_color_buffer_float GL_EXT_compressed_ETC1_RGB8_sub_texture GL_EXT_copy_image GL_EXT_depth_clamp GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query GL_EXT_draw_buffers GL_EXT_draw_buffers_indexed GL_EXT_draw_elements_base_vertex GL_EXT_float_blend GL_EXT_frag_depth GL_EXT_map_buffer_range GL_EXT_multi_draw_arrays GL_EXT_occlusion_query_boolean GL_EXT_polygon_offset_clamp GL_EXT_read_format_bgra GL_EXT_sRGB_write_control GL_EXT_separate_shader_objects GL_EXT_shader_integer_mix GL_EXT_texture_border_clamp GL_EXT_texture_compression_bptc GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_rgtc GL_EXT_texture_compression_s3tc GL_EXT_texture_compression_s3tc_srgb GL_EXT_texture_format_BGRA8888 GL_EXT_texture_query_lod GL_EXT_texture_rg GL_EXT_texture_sRGB_R8 GL_EXT_texture_sRGB_decode GL_EXT_texture_type_2_10_10_10_REV GL_EXT_unpack_subimage GL_KHR_context_flush_control GL_KHR_debug GL_KHR_no_error GL_KHR_parallel_shader_compile GL_KHR_texture_compression_astc_ldr GL_KHR_texture_compression_astc_sliced_3d GL_MESA_shader_integer_functions GL_NV_conditional_render GL_NV_draw_buffers GL_NV_fbo_color_attachments GL_NV_read_buffer GL_NV_read_depth GL_NV_read_depth_stencil GL_NV_read_stencil GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_EGL_image_external_essl3 GL_OES_EGL_sync GL_OES_compressed_ETC1_RGB8_texture GL_OES_copy_image GL_OES_depth24 GL_OES_depth_texture GL_OES_depth_texture_cube_map GL_OES_draw_buffers_indexed GL_OES_draw_elements_base_vertex GL_OES_element_index_uint GL_OES_fbo_render_mipmap GL_OES_get_program_binary GL_OES_mapbuffer GL_OES_packed_depth_stencil GL_OES_required_internalformat GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_stencil8 GL_OES_surfaceless_context GL_OES_texture_3D GL_OES_texture_border_clamp GL_OES_texture_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_texture_stencil8 GL_OES_vertex_array_object GL_OES_vertex_half_float
    

    Thanks.


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