Package: xbase-clients Version: 4.3.0.dfsg.1-8 Severity: minor
I have a dual-head setup. Screen 0 is driven by a NVidia card, with the NVidia proprietary driver, and screen 1 is a Matrox G200 with the normal mga driver. When running glxinfo, it segfaults when it tries to print the visual table for screen 1. glxinfo output: name of display: :0.0 display: :0 screen: 0 direct rendering: Yes server glx vendor string: NVIDIA Corporation server glx version string: 1.3 server glx extensions: GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control client glx vendor string: NVIDIA Corporation client glx version string: 1.3 client glx extensions: GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_SGI_video_sync, GLX_NV_swap_group, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_SGI_swap_control, GLX_NV_float_buffer GLX extensions: GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control, GLX_ARB_get_proc_address OpenGL vendor string: NVIDIA Corporation OpenGL renderer string: GeForce4 MX 440/AGP/3DNOW! OpenGL version string: 1.4.1 NVIDIA 53.36 OpenGL extensions: GL_ARB_imaging, GL_ARB_multitexture, GL_ARB_point_parameters, GL_ARB_point_sprite, GL_ARB_texture_compression, GL_ARB_texture_cube_map, GL_ARB_texture_env_add, GL_ARB_texture_env_combine, GL_ARB_texture_env_dot3, GL_ARB_texture_mirrored_repeat, GL_ARB_transpose_matrix, GL_ARB_vertex_buffer_object, GL_ARB_vertex_program, GL_ARB_window_pos, GL_S3_s3tc, GL_EXT_texture_env_add, GL_EXT_abgr, GL_EXT_bgra, GL_EXT_blend_color, GL_EXT_blend_minmax, GL_EXT_blend_subtract, GL_EXT_clip_volume_hint, GL_EXT_compiled_vertex_array, GL_EXT_draw_range_elements, GL_EXT_fog_coord, GL_EXT_multi_draw_arrays, GL_EXT_packed_pixels, GL_EXT_paletted_texture, GL_EXT_point_parameters, GL_EXT_rescale_normal, GL_EXT_secondary_color, GL_EXT_separate_specular_color, GL_EXT_shared_texture_palette, GL_EXT_stencil_wrap, GL_EXT_texture_compression_s3tc, 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, GL_EXT_texture_lod_bias, GL_EXT_texture_object, GL_EXT_vertex_array, GL_IBM_rasterpos_clip, GL_IBM_texture_mirrored_repeat, GL_KTX_buffer_region, GL_NV_blend_square, GL_NV_fence, GL_NV_fog_distance, GL_NV_light_max_exponent, GL_NV_packed_depth_stencil, GL_NV_pixel_data_range, GL_NV_point_sprite, GL_NV_register_combiners, GL_NV_texgen_reflection, GL_NV_texture_env_combine4, GL_NV_texture_rectangle, GL_NV_vertex_array_range, GL_NV_vertex_array_range2, GL_NV_vertex_program, GL_NV_vertex_program1_1, GL_NVX_ycrcb, GL_SGIS_generate_mipmap, GL_SGIS_multitexture, GL_SGIS_texture_lod, GL_SUN_slice_accum 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 ---------------------------------------------------------------------- 0x21 24 tc 0 32 0 r y . 8 8 8 0 0 24 8 16 16 16 16 0 0 None 0x22 24 dc 0 32 0 r y . 8 8 8 0 0 24 8 16 16 16 16 0 0 None 0x23 24 tc 0 32 0 r y . 8 8 8 8 0 24 8 16 16 16 16 0 0 None 0x24 24 tc 0 32 0 r . . 8 8 8 0 0 24 8 16 16 16 16 0 0 None 0x25 24 tc 0 32 0 r . . 8 8 8 8 0 24 8 16 16 16 16 0 0 None 0x26 24 tc 0 32 0 r y . 8 8 8 0 0 16 0 16 16 16 16 0 0 None 0x27 24 tc 0 32 0 r y . 8 8 8 8 0 16 0 16 16 16 16 0 0 None 0x28 24 tc 0 32 0 r . . 8 8 8 0 0 16 0 16 16 16 16 0 0 None 0x29 24 tc 0 32 0 r . . 8 8 8 8 0 16 0 16 16 16 16 0 0 None 0x2a 24 tc 0 32 0 r y . 8 8 8 0 0 0 0 16 16 16 16 0 0 None 0x2b 24 tc 0 32 0 r y . 8 8 8 8 0 0 0 16 16 16 16 0 0 None 0x2c 24 tc 0 32 0 r . . 8 8 8 0 0 0 0 16 16 16 16 0 0 None 0x2d 24 tc 0 32 0 r . . 8 8 8 8 0 0 0 16 16 16 16 0 0 None 0x2e 24 dc 0 32 0 r y . 8 8 8 8 0 24 8 16 16 16 16 0 0 None 0x2f 24 dc 0 32 0 r . . 8 8 8 0 0 24 8 16 16 16 16 0 0 None 0x30 24 dc 0 32 0 r . . 8 8 8 8 0 24 8 16 16 16 16 0 0 None 0x31 24 dc 0 32 0 r y . 8 8 8 0 0 16 0 16 16 16 16 0 0 None 0x32 24 dc 0 32 0 r y . 8 8 8 8 0 16 0 16 16 16 16 0 0 None 0x33 24 dc 0 32 0 r . . 8 8 8 0 0 16 0 16 16 16 16 0 0 None 0x34 24 dc 0 32 0 r . . 8 8 8 8 0 16 0 16 16 16 16 0 0 None 0x35 24 dc 0 32 0 r y . 8 8 8 0 0 0 0 16 16 16 16 0 0 None 0x36 24 dc 0 32 0 r y . 8 8 8 8 0 0 0 16 16 16 16 0 0 None 0x37 24 dc 0 32 0 r . . 8 8 8 0 0 0 0 16 16 16 16 0 0 None 0x38 24 dc 0 32 0 r . . 8 8 8 8 0 0 0 16 16 16 16 0 0 None Error: couldn't find RGB GLX visual 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 ---------------------------------------------------------------------- Segmentation fault gdb says: Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1217124448 (LWP 5934)] 0xb7c7634e in strstr () from /lib/tls/libc.so.6 (gdb) bt #0 0xb7c7634e in strstr () from /lib/tls/libc.so.6 #1 0x0804d070 in ?? () #2 0xbffff888 in ?? () #3 0x0804978a in ?? () #4 0x0804a88c in _IO_stdin_used () #5 0x00000000 in ?? () #6 0x00000023 in ?? () #7 0xbffff964 in ?? () #8 0x00000000 in ?? () #9 0x0804d070 in ?? () #10 0x00000000 in ?? () #11 0x0804ee08 in ?? () #12 0x00000001 in ?? () #13 0xbffff940 in ?? () #14 0xbffffaa8 in ?? () #15 0x08049e47 in ?? () #16 0x0804d070 in ?? () #17 0x0804ede0 in ?? () #18 0xbffff940 in ?? () #19 0xbffff8ac in ?? () #20 0x08048520 in ?? () #21 0xbffff8e4 in ?? () #22 0x0804ede0 in ?? () #23 0x00000002 in ?? () #24 0xb7d3fbf8 in ?? () #25 0x00000000 in ?? () #26 0x00000001 in ?? () #27 0xbffff8e4 in ?? () #28 0x00000000 in ?? () #29 0x00000000 in ?? () #30 0x00000001 in ?? () #31 0x00000000 in ?? () #32 0x06de90a5 in ?? () #33 0xbffff960 in ?? () #34 0xb7fe9000 in ?? () #35 0x00000000 in ?? () #36 0x00000000 in ?? () #37 0xb7c0556c in ?? () from /lib/tls/libc.so.6 #38 0xb7d3f278 in ?? () #39 0x00000000 in ?? () #40 0xb7c6b884 in _IO_setb () from /lib/tls/libc.so.6 #41 0x00000024 in ?? () #42 0xb7d2bfe0 in _IO_2_1_stdout_ () from /lib/tls/libc.so.6 #43 0xb7d2c027 in _IO_2_1_stderr_ () from /lib/tls/libc.so.6 #44 0xb7d2bfe0 in _IO_2_1_stdout_ () from /lib/tls/libc.so.6 #45 0x00000000 in ?? () #46 0x0804ab60 in _IO_stdin_used () #47 0xb7c6960f in _IO_do_write () from /lib/tls/libc.so.6 #48 0x0000008c in ?? () #49 0x00000004 in ?? () #50 0x00000010 in ?? () #51 0x0000f800 in ?? () #52 0x000007e0 in ?? () #53 0x0000001f in ?? () #54 0x00000040 in ?? () #55 0x00000006 in ?? () #56 0x00000000 in ?? () #57 0x00000000 in ?? () #58 0x00000000 in ?? () #59 0x00000000 in ?? () #60 0x00000000 in ?? () #61 0x00000000 in ?? () #62 0x00000000 in ?? () #63 0x00000000 in ?? () #64 0x00000000 in ?? () #65 0x00000000 in ?? () #66 0x00000000 in ?? () #67 0x00000000 in ?? () #68 0x00000000 in ?? () #69 0x00000000 in ?? () #70 0x00000000 in ?? () #71 0x00000000 in ?? () #72 0x00000000 in ?? () #73 0x00000000 in ?? () #74 0x00000000 in ?? () #75 0x00000000 in ?? () #76 0x00000000 in ?? () #77 0x00000000 in ?? () #78 0x00000000 in ?? () #79 0x00000000 in ?? () #80 0x00000000 in ?? () #81 0x00000000 in ?? () #82 0x00000001 in ?? () #83 0x00000000 in ?? () #84 0x00008000 in ?? () #85 0x00000000 in ?? () #86 0x00000000 in ?? () #87 0x00000000 in ?? () #88 0xb7d32fcc in ?? () from /lib/tls/libc.so.6 #89 0xb7c6a3e9 in _IO_file_write () from /lib/tls/libc.so.6 #90 0xb7c6960f in _IO_do_write () from /lib/tls/libc.so.6 #91 0xb7c695a8 in _IO_do_write () from /lib/tls/libc.so.6 #92 0xb7c69a55 in _IO_file_overflow () from /lib/tls/libc.so.6 #93 0xb7c6b5bb in __overflow () from /lib/tls/libc.so.6 #94 0xb7c65f73 in putc () from /lib/tls/libc.so.6 #95 0xb7fafafb in putchar () from /usr/X11R6/lib/libGLU.so.1 #96 0x0804a249 in ?? () #97 0x0804d070 in ?? () #98 0x00000001 in ?? () #99 0x00000000 in ?? () #100 0x00000000 in ?? () #101 0xb7f282a5 in glXChannelRectSyncSGIX () from /usr/lib/tls/libGL.so.1 #102 0x00000000 in ?? () #103 0x00000001 in ?? () #104 0x0000a37b in ?? () #105 0x00000000 in ?? () #106 0x00000002 in ?? () #107 0x00000000 in ?? () #108 0xb7d32fcc in ?? () from /lib/tls/libc.so.6 #109 0xb7d34290 in timezone () from /lib/tls/libc.so.6 #110 0xbffffb00 in ?? () #111 0xbffffb74 in ?? () #112 0xb7c107f8 in __libc_start_main () from /lib/tls/libc.so.6 #113 0xb7d32fcc in ?? () from /lib/tls/libc.so.6 valgrind says: ==5957== Invalid read of size 1 ==5957== at 0x1BC6234E: strstr (in /lib/tls/libc-2.3.2.so) ==5957== by 0x8049E46: (within /usr/X11R6/bin/glxinfo) ==5957== by 0x804A248: (within /usr/X11R6/bin/glxinfo) ==5957== by 0x1BBFC7F7: __libc_start_main (in /lib/tls/libc-2.3.2.so) ==5957== Address 0x0 is not stack'd, malloc'd or (recently) free'd ==5957== ==5957== Process terminating with default action of signal 11 (SIGSEGV) ==5957== Access not within mapped region at address 0x0 ==5957== at 0x1BC6234E: strstr (in /lib/tls/libc-2.3.2.so) ==5957== by 0x8049E46: (within /usr/X11R6/bin/glxinfo) ==5957== by 0x804A248: (within /usr/X11R6/bin/glxinfo) ==5957== by 0x1BBFC7F7: __libc_start_main (in /lib/tls/libc-2.3.2.so) valgrind also gives a lot of warnings in the beginning about uninitialized bytes given to ioctl and conditional jumps, is that normal? I haven't tried with the open source nv driver, will do when I have time. -- System Information: Debian Release: 3.1 APT prefers testing APT policy: (500, 'testing') Architecture: i386 (i686) Kernel: Linux 2.6.9-rc3 Locale: LANG=C, [EMAIL PROTECTED] (charmap=ISO-8859-15) Versions of packages xbase-clients depends on: ii cpp 4:3.3.4-2 The GNU C preprocessor (cpp) ii libc6 2.3.2.ds1-18 GNU C Library: Shared libraries an ii libdps1 4.3.0.dfsg.1-8 Display PostScript (DPS) client li ii libexpat1 1.95.8-1 XML parsing C library - runtime li ii libfontconfig1 2.2.3-4 generic font configuration library ii libfreetype6 2.1.7-2.3 FreeType 2 font engine, shared lib ii libgcc1 1:3.4.2-2 GCC support library ii libice6 4.3.0.dfsg.1-8 Inter-Client Exchange library ii libncurses5 5.4-4 Shared libraries for terminal hand ii libpng12-0 1.2.8rel-1 PNG library - runtime ii libsm6 4.3.0.dfsg.1-8 X Window System Session Management ii libstdc++5 1:3.3.4-13 The GNU Standard C++ Library v3 ii libxaw7 4.3.0.dfsg.1-8 X Athena widget set library ii libxcursor1 1.1.3-1 X cursor management library ii libxext6 4.3.0.dfsg.1-8 X Window System miscellaneous exte ii libxft2 2.1.2-6 FreeType-based font drawing librar ii libxi6 4.3.0.dfsg.1-8 X Window System Input extension li ii libxmu6 4.3.0.dfsg.1-8 X Window System miscellaneous util ii libxmuu1 4.3.0.dfsg.1-8 lightweight X Window System miscel ii libxpm4 4.3.0.dfsg.1-8 X pixmap library ii libxrandr2 4.3.0.dfsg.1-8 X Window System Resize, Rotate and ii libxrender1 0.8.3-7 X Rendering Extension client libra ii libxt6 4.3.0.dfsg.1-8 X Toolkit Intrinsics ii libxtrap6 4.3.0.dfsg.1-8 X Window System protocol-trapping ii libxtst6 4.3.0.dfsg.1-8 X Window System event recording an ii libxv1 4.3.0.dfsg.1-8 X Window System video extension li ii xlibmesa-gl [libgl1] 4.3.0.dfsg.1-8 Mesa 3D graphics library [XFree86] ii xlibmesa-glu [libglu1] 4.3.0.dfsg.1-8 Mesa OpenGL utility library [XFree ii xlibs 4.3.0.dfsg.1-8 X Window System client libraries m ii xlibs-data 4.3.0.dfsg.1-8 X Window System client data ii zlib1g 1:1.2.2-3 compression library - runtime -- no debconf information