Hallo,

in trying to see if the Mesa-bug that lets Pd crash when the Gem window is closed has vanished I installed the bleeding edge Debian-experimental packages for mesa/dri 6.5.2-3.

Unfortunately the crash still happens:

#0 0xb55447f0 in ?? () #1 0xb798b904 in glXMakeCurrentReadSGI () from /usr/lib/libGL.so.1 #2 0xb798bbc3 in glXMakeCurrent () from /usr/lib/libGL.so.1 #3 0xb7b133a7 in GemMan::destroyWindow () from ./Gem.pd_linux

however that's old news and already reported [1].

What's new is this: Gem (current CVS) doesn't render anything anymore! The Gemwin just stays empty if rendering is turned on. (glxgears still works.) Does anyone have any idea how to debug this phenomenon?

I hope, that Gem and Mesa aren't slowly becoming a couple that's been married for too long and about to divorce now. ;) As Mesa is without alternative on Linux, this would be really bad. (At least PyOpenGL still works fine.)

Anyway here's my current glxinfo:

name of display: :0.0 display: :0 screen: 0 direct rendering: Yes server glx vendor string: SGI server glx version string: 1.2 server glx extensions: GLX_ARB_multisample, GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_EXT_texture_from_pixmap, GLX_OML_swap_method, GLX_SGI_make_current_read, GLX_SGIS_multisample, GLX_SGIX_hyperpipe, GLX_SGIX_swap_barrier, GLX_SGIX_fbconfig, GLX_MESA_copy_sub_buffer client glx vendor string: SGI client glx version string: 1.4 client glx extensions: GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context, GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_allocate_memory, GLX_MESA_copy_sub_buffer, GLX_MESA_swap_control, GLX_MESA_swap_frame_usage, GLX_OML_swap_method, GLX_OML_sync_control, GLX_SGI_make_current_read, GLX_SGI_swap_control, GLX_SGI_video_sync, GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_SGIX_visual_select_group, GLX_EXT_texture_from_pixmap GLX version: 1.2 GLX extensions: GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context, GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_swap_control, GLX_MESA_swap_frame_usage, GLX_OML_swap_method, GLX_SGI_make_current_read, GLX_SGI_video_sync, GLX_SGIS_multisample, GLX_SGIX_fbconfig OpenGL vendor string: VA Linux Systems Inc. OpenGL renderer string: Mesa DRI G400 20061030 AGP 1x x86/MMX+/3DNow!+/SSE2 OpenGL version string: 1.2 Mesa 6.5.2 OpenGL extensions: GL_ARB_multisample, GL_ARB_multitexture, GL_ARB_texture_compression, GL_ARB_texture_env_add, GL_ARB_texture_env_combine, GL_ARB_texture_env_crossbar, GL_ARB_texture_rectangle, GL_ARB_transpose_matrix, GL_ARB_vertex_program, GL_ARB_window_pos, GL_EXT_abgr, GL_EXT_bgra, GL_EXT_blend_logic_op, GL_EXT_clip_volume_hint, GL_EXT_compiled_vertex_array, GL_EXT_copy_texture, GL_EXT_draw_range_elements, GL_EXT_fog_coord, GL_EXT_multi_draw_arrays, GL_EXT_packed_pixels, GL_EXT_polygon_offset, GL_EXT_rescale_normal, GL_EXT_secondary_color, GL_EXT_separate_specular_color, GL_EXT_stencil_wrap, GL_EXT_subtexture, GL_EXT_texture, GL_EXT_texture3D, GL_EXT_texture_edge_clamp, GL_EXT_texture_env_add, GL_EXT_texture_env_combine, GL_EXT_texture_object, GL_EXT_texture_rectangle, GL_EXT_vertex_array, GL_APPLE_packed_pixels, GL_ATI_texture_env_combine3, GL_IBM_rasterpos_clip, GL_MESA_ycbcr_texture, GL_MESA_window_pos, GL_NV_light_max_exponent, 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_edge_clamp, GL_SGIS_texture_lod, GL_SUN_multi_draw_arrays glu version: 1.3 glu extensions: GLU_EXT_nurbs_tessellator, GLU_EXT_object_space_tess

visual x bf lv rg d st colorbuffer ax dp st accumbuffer ms cav id dep cl sp sz l ci b ro r g b a bf th cl r g b a ns b eat ---------------------------------------------------------------------- 0x23 16 tc 0 16 0 r y . 5 6 5 0 0 16 0 0 0 0 0 0 0 None 0x24 16 tc 0 16 0 r . . 5 6 5 0 0 16 0 0 0 0 0 0 0 None 0x25 16 tc 0 16 0 r y . 5 6 5 0 0 16 8 0 0 0 0 0 0 Slow 0x26 16 tc 0 16 0 r . . 5 6 5 0 0 16 8 0 0 0 0 0 0 Slow 0x27 16 tc 0 16 0 r y . 5 6 5 0 0 16 0 16 16 16 0 0 0 Slow 0x28 16 tc 0 16 0 r . . 5 6 5 0 0 16 0 16 16 16 0 0 0 Slow 0x29 16 tc 0 16 0 r y . 5 6 5 0 0 16 8 16 16 16 0 0 0 Slow 0x2a 16 tc 0 16 0 r . . 5 6 5 0 0 16 8 16 16 16 0 0 0 Slow 0x2b 16 dc 0 16 0 r y . 5 6 5 0 0 16 0 0 0 0 0 0 0 None 0x2c 16 dc 0 16 0 r . . 5 6 5 0 0 16 0 0 0 0 0 0 0 None 0x2d 16 dc 0 16 0 r y . 5 6 5 0 0 16 8 0 0 0 0 0 0 Slow 0x2e 16 dc 0 16 0 r . . 5 6 5 0 0 16 8 0 0 0 0 0 0 Slow 0x2f 16 dc 0 16 0 r y . 5 6 5 0 0 16 0 16 16 16 0 0 0 Slow 0x30 16 dc 0 16 0 r . . 5 6 5 0 0 16 0 16 16 16 0 0 0 Slow 0x31 16 dc 0 16 0 r y . 5 6 5 0 0 16 8 16 16 16 0 0 0 Slow 0x32 16 dc 0 16 0 r . . 5 6 5 0 0 16 8 16 16 16 0 0 0 Slow

[1] https://bugs.freedesktop.org/show_bug.cgi?id=9204

Ciao