DRM problem with X-terminal

Simo Kauppi swk at nic.fi
Sat Dec 3 05:30:47 PST 2005


Hi,

Is it possible to use DRM in a thinclient configuration? If so, what am
I missing?

I have a 64-bit Debian server (hostname server) with xdm and the
necessary xclients. Then I have a 32-bit host (hostname terminal) with
Xorg 6.8.2.

In the server I have "terminal" in the Xaccess-file and I start Xorg in
the terminal with X -query server.

I have the
Section "DRI"
  Mode 0666
EndSection
in the xorg.conf in the terminal.

X in the terminal seems to be working fine, except e.g. glxinfo tells
me that direct rendering is not working. According to the Xorg.0.log in
the terminal, DRM is working.

$ glxinfo

libGL: XF86DRIGetClientDriverName: 1.1.1 mga (screen 0)
libGL: OpenDriver: trying /usr/X11R6/lib/modules/dri/mga_dri.so
libGL error: XF86DRIQueryDirectRenderingCapable returned false
drmOpenByBusid: Searching for BusID pci:0000:01:00.0
drmOpenDevice: node name is /dev/dri/card0
drmOpenByBusid: drmOpenMinor returns -1003
drmOpenDevice: node name is /dev/dri/card1
drmOpenByBusid: drmOpenMinor returns -1003
...goes through cards 0-14...
drmOpenDevice: node name is /dev/dri/card14
drmOpenByBusid: drmOpenMinor returns -1003
libGL error: open DRM failed (Operation not permitted)
libGL error: reverting to (slow) indirect rendering
name of display: terminal:0.0
display: terminal:0  screen: 0
direct rendering: No
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_OML_swap_method, GLX_SGI_make_current_read, 
    GLX_SGIS_multisample, GLX_SGIX_fbconfig
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_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 extensions:
    GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context, 
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIS_multisample
OpenGL vendor string: Mesa project: www.mesa3d.org
OpenGL renderer string: Mesa GLX Indirect
OpenGL version string: 1.2 (1.5 Mesa 6.2.1)
OpenGL extensions:
    GL_ARB_depth_texture, GL_ARB_imaging, GL_ARB_multitexture, 
    GL_ARB_point_parameters, GL_ARB_point_sprite, GL_ARB_shadow, 
    GL_ARB_shadow_ambient, GL_ARB_texture_border_clamp, 
    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_transpose_matrix, GL_ARB_window_pos, GL_EXT_abgr, GL_EXT_bgra, 
    GL_EXT_blend_color, GL_EXT_blend_func_separate, GL_EXT_blend_logic_op, 
    GL_EXT_blend_minmax, GL_EXT_blend_subtract, GL_EXT_clip_volume_hint, 
    GL_EXT_copy_texture, GL_EXT_draw_range_elements, GL_EXT_fog_coord, 
    GL_EXT_multi_draw_arrays, GL_EXT_packed_pixels, GL_EXT_point_parameters, 
    GL_EXT_polygon_offset, 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_edge_clamp, 
    GL_EXT_texture_env_add, GL_EXT_texture_env_combine, 
    GL_EXT_texture_env_dot3, GL_EXT_texture_lod_bias, GL_EXT_texture_object, 
    GL_EXT_texture_rectangle, GL_EXT_vertex_array, GL_APPLE_packed_pixels, 
    GL_ATI_texture_env_combine3, GL_ATI_texture_mirror_once, 
    GL_ATIX_texture_env_combine3, GL_IBM_texture_mirrored_repeat, 
    GL_INGR_blend_func_separate, GL_MESA_pack_invert, GL_MESA_ycbcr_texture, 
    GL_NV_blend_square, GL_NV_point_sprite, GL_NV_texgen_reflection, 
    GL_NV_texture_rectangle, GL_SGIS_generate_mipmap, 
    GL_SGIS_texture_border_clamp, GL_SGIS_texture_edge_clamp, 
    GL_SGIS_texture_lod, GL_SGIX_depth_texture, GL_SGIX_shadow, 
    GL_SGIX_shadow_ambient, 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 24 tc  0 24  0 r  y  .  8  8  8  0  0  0  0  0  0  0  0  0 0 None
0x24 24 dc  0 24  0 r  y  .  8  8  8  0  0  0  0  0  0  0  0  0 0 None

Simo
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