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Old 01-23-07, 12:44 PM   #1
mipa
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Join Date: Jan 2007
Posts: 9
Question Annoying syncing problem during video playback

I can see annoying syncing errors during video playback or during fast animation on the desktop. I have discovered from the web that enabling vblank-feature to display driver can fix it. My bad i'm using Xgl and compiz so i cannot use nvidia-settings -tool to enable vblank-feature. Is there any method for me to enable vblank-feature?
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Old 01-23-07, 01:09 PM   #2
pe1chl
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Default Re: Annoying syncing problem during video playback

Why can't you use nvidia-settings?
It can even work in commandline mode... (scripts)
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Old 01-23-07, 01:27 PM   #3
mipa
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Posts: 9
Default Re: Annoying syncing problem during video playback

I have NX7950GT and i'm using openSUSE 10.2 with Xgl+Compiz


nvidia-settings --assign="SyncToVBlank=1"

ERROR: NV-CONTROL extension not found on this Display.
ERROR: Unable to determine number of NVIDIA GPUs on ':0.0'.
ERROR: Unable to determine number of NVIDIA Frame Lock Devices on ':0.0'.
ERROR: Unable to determine number of NVIDIA VCSCs on ':0.0'.
ERROR: Invalid X Screen 0 specified in assignment 'SyncToVBlank=1' (NV-CONTROL
extension not supported on X Screen 0).

Am i doing something wrong?



fyi,

glxinfo
name of display: :0.0
display: :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_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
client glx vendor string: NVIDIA Corporation
client glx version string: 1.4
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_NV_video_out, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
GLX_SGI_swap_control, GLX_NV_float_buffer, GLX_ARB_fbconfig_float,
GLX_EXT_fbconfig_packed_float, GLX_EXT_texture_from_pixmap,
GLX_EXT_framebuffer_sRGB
GLX extensions:
GLX_ARB_multisample, GLX_EXT_visual_info, GLX_EXT_visual_rating,
GLX_EXT_import_context, GLX_EXT_texture_from_pixmap, GLX_SGIX_fbconfig,
GLX_ARB_get_proc_address
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce 7950 GT/PCI/SSE2
OpenGL version string: 1.2 (2.1.0 NVIDIA 97.46)
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_texture_border_clamp, 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_window_pos, GL_ARB_texture_non_power_of_two, GL_ARB_vertex_program,
GL_ARB_fragment_program, GL_EXT_abgr, GL_EXT_bgra, GL_EXT_blend_color,
GL_EXT_blend_func_separate, GL_EXT_blend_minmax, GL_EXT_blend_subtract,
GL_EXT_draw_range_elements, GL_EXT_fog_coord, GL_EXT_multi_draw_arrays,
GL_EXT_packed_pixels, GL_EXT_rescale_normal, GL_EXT_secondary_color,
GL_EXT_separate_specular_color, GL_EXT_shadow_funcs, GL_EXT_stencil_wrap,
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,
GL_EXT_texture_lod_bias, GL_EXT_texture_object, GL_EXT_vertex_array,
GL_ATI_texture_mirror_once, GL_IBM_texture_mirrored_repeat,
GL_NV_blend_square, GL_NV_texgen_reflection, GL_NV_texture_rectangle,
GL_NV_texture_env_combine4, GL_SGIS_generate_mipmap, GL_SGIS_texture_lod,
GL_SGIX_depth_texture, GL_SGIX_shadow
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
----------------------------------------------------------------------
0x2c 24 tc 0 32 0 r y . 8 8 8 8 0 24 8 0 0 0 0 1882154354 1634235183 None
0x2d 24 tc 0 32 0 r . . 8 8 8 8 0 0 0 0 0 0 0 1647275105 1668246575 None
0x2e 32 tc 0 32 0 r y . 8 8 8 8 0 24 8 0 0 0 0 1966029422 1768042356 Ncon
0x2f 32 tc 0 32 0 r . . 8 8 8 8 0 0 0 0 0 0 0 2037539631 1936617315 Ncon
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Old 02-02-07, 06:03 PM   #4
mipa
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Join Date: Jan 2007
Posts: 9
Default Re: Annoying syncing problem during video playback

I had discovered that Xgl was the reason for my video/desktop syncing problems. Now I'm using compiz/beryl with pale xorg with perfect picture quality.

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