Submitted by skangas
I get visual artifacts inside menus and chat when OpenGL is enabled. They disappear if I disable OpenGL.

I bisected this bug and the problems begins with r3600.

See attached screenshots for example.

Thanks,
Stefan Kangas



Video system type: x11.
Using screen resolution 1024 x 768.

Testing if color depth 32 bits is available... YES.

video mode set (bpp=24 RGBA=8880 depth=24)
-OpenGL-------------------------------------------------------
Vendor     : Tungsten Graphics, Inc
Renderer   : Mesa DRI Mobile Intel\u00ae GM45 Express Chipset GEM 20091221 2009Q4 
Version    : 2.1 Mesa 7.7.1
Extensions : GL_EXT_compiled_vertex_array GL_EXT_texture_env_add GL_ARB_copy_buffer GL_ARB_depth_texture GL_ARB_depth_clamp GL_ARB_draw_buffers GL_ARB_draw_elements_base_vertex GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_framebuffer_object GL_ARB_half_float_pixel GL_ARB_map_buffer_range GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_provoking_vertex GL_ARB_seamless_cube_map GL_ARB_shader_objects GL_ARB_shading_language_100 GL_ARB_shading_language_120 GL_ARB_shadow GL_ARB_sync GL_ARB_texture_border_clamp GL_ARB_texture_compression GL_ARB_texture_cube_map GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_mirrored_repeat GL_ARB_texture_non_power_of_two GL_ARB_texture_rectangle GL_ARB_transpose_matrix GL_ARB_vertex_array_bgra GL_ARB_vertex_array_object GL_ARB_vertex_buffer_object GL_ARB_vertex_program GL_ARB_vertex_shader GL_ARB_window_pos GL_EXT_abgr GL_EXT_bgra GL_EXT_blend_color GL_EXT_blend_equation_separate GL_EXT_blend_func_separate GL_EXT_blend_logic_op GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_cull_vertex GL_EXT_copy_texture GL_EXT_draw_range_elements GL_EXT_framebuffer_blit GL_EXT_framebuffer_object GL_EXT_fog_coord GL_EXT_gpu_program_parameters GL_EXT_multi_draw_arrays GL_EXT_packed_depth_stencil GL_EXT_packed_pixels GL_EXT_pixel_buffer_object GL_EXT_point_parameters GL_EXT_polygon_offset GL_EXT_provoking_vertex GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_specular_color GL_EXT_shadow_funcs GL_EXT_stencil_two_side GL_EXT_stencil_wrap GL_EXT_subtexture GL_EXT_texture GL_EXT_texture3D GL_EXT_texture_cube_map GL_EXT_texture_edge_clamp GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_EXT_texture_filter_anisotropic GL_EXT_texture_lod_bias GL_EXT_texture_object GL_EXT_texture_rectangle GL_EXT_texture_sRGB GL_EXT_texture_swizzle GL_EXT_vertex_array GL_EXT_vertex_array_bgra GL_3DFX_texture_compression_FXT1 GL_APPLE_client_storage GL_APPLE_packed_pixels GL_APPLE_vertex_array_object GL_ATI_blend_equation_separate GL_ATI_envmap_bumpmap GL_ATI_texture_env_combine3 GL_ATI_separate_stencil GL_IBM_multimode_draw_arrays GL_IBM_rasterpos_clip GL_IBM_texture_mirrored_repeat GL_INGR_blend_func_separate GL_MESA_pack_invert GL_MESA_texture_signed_rgba GL_MESA_ycbcr_texture GL_MESA_window_pos GL_NV_blend_square GL_NV_depth_clamp GL_NV_light_max_exponent GL_NV_packed_depth_stencil GL_NV_texture_env_combine4 GL_NV_texture_rectangle GL_NV_texgen_reflection GL_NV_vertex_program GL_NV_vertex_program1_1 GL_OES_read_format GL_SGIS_generate_mipmap GL_SGIS_texture_border_clamp GL_SGIS_texture_edge_clamp GL_SGIS_texture_lod GL_SUN_multi_draw_arrays


$ uname -r
Linux kollontaj 2.6.32-5-amd64 #1 SMP Fri Dec 10 15:35:08 UTC 2010 x86_64 GNU/Linux

Posted by hakzsam
Is this reproducible ?

I can't reproduce it.

revision 3865

Matthias, could you make a quick test, please ?

Posted by matthiaskrgr
I cannot reproduce.


Stefan, does this bug still exist for you?

(setting status to pending)

Posted by skangas
This bug is still reproducible on the same hardware. Revision r3865.

Posted by hakzsam
Skangas, could you pinpoint a specific revision ?

Posted by skangas
Yes, the problems begin with r3600.

Posted by ahuillet
OK, and this still happens? It's very strange that I cannot reproduce the issue though. I'll investigate what it might be that we are doing wrong, and whether the GL driver might be at fault.

Thanks, and sorry for the delay. I did experience similar issues myself but got them fixed before committing r3600.

Posted by matthiaskrgr
Is this bug still present?