Strange rendering

**dozersmasher** · May 19th, 2008

Not exactly sure what you call this, but every time I run a 3d app or 2d game, I get something wierd. It pretty much stretches the image over the whole desktop. In glxgears, it has the gears stretched all over the screen.
Does anyone know how to fix this or what the problem is?

For more information look at the attached screenshot of glxgears.

**dozersmasher** · May 31st, 2008

In case you needed it, here is the glxinfo result:

Code:

glxinfo
name of display: :0.0
do_wait: drmWaitVBlank returned -1, IRQs don't seem to be working correctly.
Try running with LIBGL_THROTTLE_REFRESH and LIBL_SYNC_REFRESH unset.
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_make_current_read, 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_frame_usage, 
    GLX_OML_swap_method, GLX_SGI_make_current_read, GLX_SGIS_multisample, 
    GLX_SGIX_fbconfig, GLX_SGIX_visual_select_group
OpenGL vendor string: VIA Technology
OpenGL renderer string: Mesa DRI UniChrome (KM400) 20060710 x86/MMX+/3DNow!+/SSE
OpenGL version string: 1.2 Mesa 7.0.3-rc2
OpenGL extensions:
    GL_ARB_imaging, GL_ARB_multisample, GL_ARB_multitexture, 
    GL_ARB_point_parameters, GL_ARB_texture_env_add, 
    GL_ARB_texture_env_combine, GL_ARB_texture_mirrored_repeat, 
    GL_ARB_transpose_matrix, GL_ARB_vertex_buffer_object, 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_point_parameters, 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_lod_bias, GL_EXT_texture_object, GL_EXT_vertex_array, 
    GL_APPLE_packed_pixels, GL_IBM_rasterpos_clip, 
    GL_IBM_texture_mirrored_repeat, 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_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
----------------------------------------------------------------------
0x22 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x23 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x24 24 tc  0 32  0 r  y  .  8  8  8  8  0 16  0  0  0  0  0  0 0 None
0x25 24 tc  0 32  0 r  .  .  8  8  8  8  0 16  0  0  0  0  0  0 0 None
0x26 24 tc  0 32  0 r  y  .  8  8  8  8  0  0  0  0  0  0  0  0 0 None
0x27 24 tc  0 32  0 r  .  .  8  8  8  8  0  0  0  0  0  0  0  0 0 None
0x28 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  8 16 16 16 16  0 0 Slow
0x29 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  8 16 16 16 16  0 0 Slow
0x2a 24 tc  0 32  0 r  y  .  8  8  8  8  0 16  0 16 16 16 16  0 0 Slow
0x2b 24 tc  0 32  0 r  .  .  8  8  8  8  0 16  0 16 16 16 16  0 0 Slow
0x2c 24 tc  0 32  0 r  y  .  8  8  8  8  0  0  0 16 16 16 16  0 0 Slow
0x2d 24 tc  0 32  0 r  .  .  8  8  8  8  0  0  0 16 16 16 16  0 0 Slow
0x47 32 tc  0 32  0 r  .  .  8  8  8  8  0  0  0  0  0  0  0  0 0 Ncon

**rabidgremlin** · June 9th, 2008

I'm getting the same thing with my VIA CLE266 chipset

**dozersmasher** · June 15th, 2008

Hmm... perhaps it is common to Via chipsets. I have Via KM400.

**dozersmasher** · June 24th, 2008

Anyone want to explain why it suddenly snapped back? 3d rendering works fine now. All I did was play with the resolution a bunch of times. Sometimes I would check on it, and even restart Xorg to get it to work. Is this some kind of wacko AI that lets Linux decide if it wants to display 3d graphics or go insane?

I don't think the problem is actually fixed due to the fact that I don't have a clue what caused the problem.