[GEM-dev] Gem doesn't render with Mesa 6.5.2

Frank Barknecht fbar at footils.org
Sun Feb 11 15:02:02 CET 2007


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
-- 
 Frank Barknecht                 _ ______footils.org_ __goto10.org__




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