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Sehnal jsem trochu postarší počítač (Athlon 1,2 Ghz, 196 MB ram na VIA chipsetu) s grafickou kartou (32 MB) která se v lspci hlásí jako:

VGA compatible controller: ATI Technologies Inc Rage 128 RL/VR AGP

Napadlo mě že by nebylo špatné zkusit na ní rozjet 3D akceleraci, protože přece jen občas si nějakou starší hru zahrát po lance na dvou pc není špatné (bzflag..., kdo zná ví ). Sáhl jsem hned po OSS driverech a nastavil podle nějakého howta xorg.conf a akcelerace "klapla" na první pokus. Glxgears ukazuje něco kolem 500 (hádam že na tu kartu dobrý výkon) a tuxracer taky běží. Jenže mé nadšení opadlo při pokusu o spuštění hry cube. Je mi jasné že od tak stařičké karty nemůžu čekat zázraky, ale nějak jsem doufal, že aspoň verze z roku 2004 může nějak (na nejmenší rozlišení) fungovat. Bohužel po spuštění (a sdl initu) kompletně zatuhne linux (arch linux) a pomůže jen restart.

Pro jistotu uvedu podstatné sekce Xorgu.

Section "Module"
  Load "i2c"
  Load "bitmap"
  Load "ddc"
  Load "extmod"
  Load "freetype"
  Load "int10"
  Load "type1"
  Load "vbe"
  load "glx"
  load "dri"
  load "drm"
EndSection

Section "Device"
        Identifier  "Card0"
        Driver      "r128"
        VendorName  "All"
        BoardName   "All"
        Option          "AccelMethod"   "EXA"
        VideoRam 32768
        Option "AGPMode" "4"
        Option "AGPFastWrite" "True"
        BusID       "PCI:1:0:0"
EndSection

Section "DRI"
        Mode 0666
EndSection

V xorg.log jsem nic zvláštího během spuštění cube nezaznamenal, ale při spuštění X nějaké chyby jsou:

(WW) AIGLX: 3D driver claims to not support visual 0x23
(WW) AIGLX: 3D driver claims to not support visual 0x24
(WW) AIGLX: 3D driver claims to not support visual 0x25
(WW) AIGLX: 3D driver claims to not support visual 0x26
(WW) AIGLX: 3D driver claims to not support visual 0x27
(WW) AIGLX: 3D driver claims to not support visual 0x28
(WW) AIGLX: 3D driver claims to not support visual 0x29
(WW) AIGLX: 3D driver claims to not support visual 0x2a
(WW) AIGLX: 3D driver claims to not support visual 0x2b
(WW) AIGLX: 3D driver claims to not support visual 0x2c
(WW) AIGLX: 3D driver claims to not support visual 0x2d
(WW) AIGLX: 3D driver claims to not support visual 0x2e
(WW) AIGLX: 3D driver claims to not support visual 0x2f
(WW) AIGLX: 3D driver claims to not support visual 0x30
(WW) AIGLX: 3D driver claims to not support visual 0x31
(WW) AIGLX: 3D driver claims to not support visual 0x32

A pak jsem ještě nalezl chyby v /var/log/messages.log

Apr 18 23:08:53 pracka [drm] Initialized drm 1.1.0 20060810
Apr 18 23:08:53 pracka [drm] Initialized r128 2.5.0 20030725 on minor 0
Apr 18 23:08:53 pracka agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
Apr 18 23:08:53 pracka agpgart: Putting AGP V2 device at 0000:00:00.0 into 0x mode
Apr 18 23:08:53 pracka agpgart: Putting AGP V2 device at 0000:01:00.0 into 0x mode
Apr 18 23:08:56 pracka agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
Apr 18 23:08:56 pracka agpgart: Putting AGP V2 device at 0000:00:00.0 into 0x mode
Apr 18 23:08:56 pracka agpgart: Putting AGP V2 device at 0000:01:00.0 into 0x mode
Apr 18 23:08:58 pracka agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
Apr 18 23:08:58 pracka agpgart: Putting AGP V2 device at 0000:00:00.0 into 0x mode
Apr 18 23:08:58 pracka agpgart: Putting AGP V2 device at 0000:01:00.0 into 0x mode
Apr 18 23:08:59 pracka agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
Apr 18 23:08:59 pracka agpgart: Putting AGP V2 device at 0000:00:00.0 into 0x mode
Apr 18 23:08:59 pracka agpgart: Putting AGP V2 device at 0000:01:00.0 into 0x mode
Apr 18 23:09:02 pracka agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
Apr 18 23:09:02 pracka agpgart: Putting AGP V2 device at 0000:00:00.0 into 0x mode
Apr 18 23:09:02 pracka agpgart: Putting AGP V2 device at 0000:01:00.0 into 0x mode
Apr 18 23:09:03 pracka agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
Apr 18 23:09:03 pracka agpgart: Putting AGP V2 device at 0000:00:00.0 into 0x mode
Apr 18 23:09:03 pracka agpgart: Putting AGP V2 device at 0000:01:00.0 into 0x mode
Apr 18 23:09:05 pracka agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
Apr 18 23:09:05 pracka agpgart: Putting AGP V2 device at 0000:00:00.0 into 0x mode
Apr 18 23:09:05 pracka agpgart: Putting AGP V2 device at 0000:01:00.0 into 0x mode
Apr 18 23:09:07 pracka agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
Apr 18 23:09:07 pracka agpgart: Putting AGP V2 device at 0000:00:00.0 into 0x mode
Apr 18 23:09:07 pracka agpgart: Putting AGP V2 device at 0000:01:00.0 into 0x mode
Apr 18 23:09:08 pracka agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
Apr 18 23:09:08 pracka agpgart: Putting AGP V2 device at 0000:00:00.0 into 0x mode
Apr 18 23:09:08 pracka agpgart: Putting AGP V2 device at 0000:01:00.0 into 0x mode

A nakonec výpis 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_import_context, GLX_EXT_texture_from_pixmap, 
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_OML_swap_method, 
    GLX_SGI_swap_control, GLX_SGIS_multisample, GLX_SGIX_fbconfig, 
    GLX_SGIX_visual_select_group
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_swap_control, 
    GLX_SGI_video_sync, GLX_SGIS_multisample, GLX_SGIX_fbconfig, 
    GLX_SGIX_visual_select_group
OpenGL vendor string: VA Linux Systems, Inc.
OpenGL renderer string: Mesa DRI Rage 128 20051027 AGP 4x x86/MMX+/3DNow!+/SSE
OpenGL version string: 1.2 Mesa 6.5.2
OpenGL extensions:
    GL_ARB_imaging, GL_ARB_multisample, GL_ARB_multitexture, 
    GL_ARB_texture_compression, GL_ARB_texture_env_add, 
    GL_ARB_texture_mirrored_repeat, GL_ARB_transpose_matrix, 
    GL_ARB_window_pos, 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_convolution, GL_EXT_copy_texture, 
    GL_EXT_draw_range_elements, GL_EXT_fog_coord, GL_EXT_histogram, 
    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_object, 
    GL_EXT_vertex_array, GL_APPLE_packed_pixels, GL_IBM_rasterpos_clip, 
    GL_IBM_texture_mirrored_repeat, GL_MESA_ycbcr_texture, GL_MESA_window_pos, 
    GL_NV_blend_square, GL_NV_light_max_exponent, GL_NV_texgen_reflection, 
    GL_OES_read_format, GL_SGI_color_matrix, GL_SGI_color_table, 
    GL_SGIS_generate_mipmap, GL_SGIS_texture_edge_clamp, GL_SGIS_texture_lod

   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  .  .  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  8  0  0  0  0  0 0 Slow
0x25 16 tc  0 16  0 r  .  .  5  6  5  0  0 16  0 16 16 16  0  0 0 Slow
0x26 16 tc  0 16  0 r  .  .  5  6  5  0  0 16  8 16 16 16  0  0 0 Slow
0x27 16 tc  0 16  0 r  y  .  5  6  5  0  0 16  0  0  0  0  0  0 0 None
0x28 16 tc  0 16  0 r  y  .  5  6  5  0  0 16  8  0  0  0  0  0 0 Slow
0x29 16 tc  0 16  0 r  y  .  5  6  5  0  0 16  0 16 16 16  0  0 0 Slow
0x2a 16 tc  0 16  0 r  y  .  5  6  5  0  0 16  8 16 16 16  0  0 0 Slow
0x2b 16 dc  0 16  0 r  .  .  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  8  0  0  0  0  0 0 Slow
0x2d 16 dc  0 16  0 r  .  .  5  6  5  0  0 16  0 16 16 16  0  0 0 Slow
0x2e 16 dc  0 16  0 r  .  .  5  6  5  0  0 16  8 16 16 16  0  0 0 Slow
0x2f 16 dc  0 16  0 r  y  .  5  6  5  0  0 16  0  0  0  0  0  0 0 None
0x30 16 dc  0 16  0 r  y  .  5  6  5  0  0 16  8  0  0  0  0  0 0 Slow
0x31 16 dc  0 16  0 r  y  .  5  6  5  0  0 16  0 16 16 16  0  0 0 Slow
0x32 16 dc  0 16  0 r  y  .  5  6  5  0  0 16  8 16 16 16  0  0 0 Slow

Možná to vážně bude zastaralostí grafické karty, ale raději se ptám.