Version: SVN (using Devel) OS: Linux After the moving of the windows, the windows get suddenly invisible. On Kwin in 4.5 it works as expected. Debian Squeeze with the radeon free drivers with version 1:6.13.1-2+squeeze1. The graphic card is a 512 MB ATI Mobility RADEON HD 4570. Trunk is used, yesterday updated and compiled. Maybe also the glxinfo is useful: $ 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_MESA_copy_sub_buffer, GLX_OML_swap_method, GLX_SGI_make_current_read, GLX_SGI_swap_control, GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_SGIX_visual_select_group client glx vendor string: Mesa Project and 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_copy_sub_buffer, GLX_MESA_swap_frame_usage, GLX_OML_swap_method, GLX_SGI_make_current_read, GLX_SGI_video_sync, GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_SGIX_visual_select_group, GLX_EXT_texture_from_pixmap OpenGL vendor string: Advanced Micro Devices, Inc. OpenGL renderer string: Mesa DRI R600 (RV710 9553) 20090101 TCL DRI2 OpenGL version string: 1.5 Mesa 7.7.1 OpenGL extensions: GL_EXT_compiled_vertex_array, GL_EXT_texture_env_add, GL_ARB_depth_texture, GL_ARB_depth_clamp, GL_ARB_draw_buffers, GL_ARB_fragment_program, GL_ARB_imaging, GL_ARB_multisample, GL_ARB_multitexture, GL_ARB_occlusion_query, GL_ARB_point_parameters, GL_ARB_provoking_vertex, GL_ARB_shadow, GL_ARB_shadow_ambient, GL_ARB_texture_border_clamp, GL_ARB_texture_compression, 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_MESAX_texture_float, GL_ARB_texture_mirrored_repeat, GL_ARB_texture_rectangle, GL_ARB_transpose_matrix, GL_ARB_vertex_array_bgra, GL_ARB_vertex_buffer_object, GL_ARB_vertex_program, GL_ARB_window_pos, GL_EXT_abgr, GL_EXT_bgra, GL_EXT_blend_color, GL_EXT_blend_equation_separate, GL_EXT_blend_func_separate, GL_EXT_blend_logic_op, GL_EXT_blend_minmax, GL_EXT_blend_subtract, GL_EXT_convolution, GL_EXT_copy_texture, GL_EXT_draw_range_elements, GL_EXT_framebuffer_object, GL_EXT_fog_coord, GL_EXT_gpu_program_parameters, GL_EXT_histogram, GL_EXT_multi_draw_arrays, GL_EXT_packed_depth_stencil, GL_EXT_packed_pixels, GL_EXT_point_parameters, GL_EXT_polygon_offset, GL_EXT_provoking_vertex, 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_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_bias, GL_EXT_texture_mirror_clamp, GL_EXT_texture_object, GL_EXT_texture_rectangle, GL_EXT_texture_sRGB, GL_EXT_vertex_array, GL_EXT_vertex_array_bgra, GL_APPLE_packed_pixels, GL_ATI_blend_equation_separate, GL_ATI_texture_env_combine3, GL_ATI_texture_mirror_once, GL_ATI_separate_stencil, GL_IBM_multimode_draw_arrays, GL_IBM_rasterpos_clip, GL_IBM_texture_mirrored_repeat, GL_INGR_blend_func_separate, GL_MESA_pack_invert, GL_MESA_ycbcr_texture, GL_MESA_window_pos, GL_NV_blend_square, GL_NV_depth_clamp, GL_NV_light_max_exponent, GL_NV_packed_depth_stencil, GL_NV_texture_rectangle, GL_NV_texgen_reflection, GL_NV_vertex_program, GL_OES_read_format, GL_SGI_color_matrix, GL_SGI_color_table, GL_SGIS_generate_mipmap, GL_SGIS_texture_border_clamp, GL_SGIS_texture_edge_clamp, GL_SGIS_texture_lod, GL_SUN_multi_draw_arrays 64 GLX Visuals 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 8 0 24 8 0 0 0 0 0 0 None 0x22 24 dc 0 32 0 r y . 8 8 8 8 0 24 8 0 0 0 0 0 0 None 0xcf 24 tc 0 24 0 r . . 8 8 8 0 0 0 0 0 0 0 0 0 0 None 0xd0 24 tc 0 24 0 r . . 8 8 8 0 0 0 0 16 16 16 0 0 0 Slow 0xd1 24 tc 0 24 0 r y . 8 8 8 0 0 0 0 0 0 0 0 0 0 None 0xd2 24 tc 0 24 0 r y . 8 8 8 0 0 0 0 16 16 16 0 0 0 Slow 0xd3 24 tc 0 24 0 r . . 8 8 8 0 0 16 0 0 0 0 0 0 0 None 0xd4 24 tc 0 24 0 r . . 8 8 8 0 0 16 0 16 16 16 0 0 0 Slow 0xd5 24 tc 0 24 0 r y . 8 8 8 0 0 16 0 0 0 0 0 0 0 None 0xd6 24 tc 0 24 0 r y . 8 8 8 0 0 16 0 16 16 16 0 0 0 Slow 0xd7 24 tc 0 24 0 r . . 8 8 8 0 0 24 0 0 0 0 0 0 0 None 0xd8 24 tc 0 24 0 r . . 8 8 8 0 0 24 0 16 16 16 0 0 0 Slow 0xd9 24 tc 0 24 0 r y . 8 8 8 0 0 24 0 0 0 0 0 0 0 None 0xda 24 tc 0 24 0 r y . 8 8 8 0 0 24 0 16 16 16 0 0 0 Slow 0xdb 24 tc 0 24 0 r . . 8 8 8 0 0 24 8 0 0 0 0 0 0 None 0xdc 24 tc 0 24 0 r . . 8 8 8 0 0 24 8 16 16 16 0 0 0 Slow 0xdd 24 tc 0 24 0 r y . 8 8 8 0 0 24 8 0 0 0 0 0 0 None 0xde 24 tc 0 24 0 r y . 8 8 8 0 0 24 8 16 16 16 0 0 0 Slow 0xdf 24 tc 0 32 0 r . . 8 8 8 8 0 0 0 0 0 0 0 0 0 None 0xe0 24 tc 0 32 0 r . . 8 8 8 8 0 0 0 16 16 16 16 0 0 Slow 0xe1 24 tc 0 32 0 r y . 8 8 8 8 0 0 0 0 0 0 0 0 0 None 0xe2 24 tc 0 32 0 r y . 8 8 8 8 0 0 0 16 16 16 16 0 0 Slow 0xe3 24 tc 0 32 0 r . . 8 8 8 8 0 16 0 0 0 0 0 0 0 None 0xe4 24 tc 0 32 0 r . . 8 8 8 8 0 16 0 16 16 16 16 0 0 Slow 0xe5 24 tc 0 32 0 r y . 8 8 8 8 0 16 0 16 16 16 16 0 0 Slow 0xe6 24 tc 0 32 0 r . . 8 8 8 8 0 24 0 0 0 0 0 0 0 None 0xe7 24 tc 0 32 0 r . . 8 8 8 8 0 24 0 16 16 16 16 0 0 Slow 0xe8 24 tc 0 32 0 r y . 8 8 8 8 0 24 0 0 0 0 0 0 0 None 0xe9 24 tc 0 32 0 r y . 8 8 8 8 0 24 0 16 16 16 16 0 0 Slow 0xea 24 tc 0 32 0 r . . 8 8 8 8 0 24 8 0 0 0 0 0 0 None 0xeb 24 tc 0 32 0 r . . 8 8 8 8 0 24 8 16 16 16 16 0 0 Slow 0xec 24 tc 0 32 0 r y . 8 8 8 8 0 24 8 16 16 16 16 0 0 Slow 0xed 24 dc 0 24 0 r . . 8 8 8 0 0 0 0 0 0 0 0 0 0 None 0xee 24 dc 0 24 0 r . . 8 8 8 0 0 0 0 16 16 16 0 0 0 Slow 0xef 24 dc 0 24 0 r y . 8 8 8 0 0 0 0 0 0 0 0 0 0 None 0xf0 24 dc 0 24 0 r y . 8 8 8 0 0 0 0 16 16 16 0 0 0 Slow 0xf1 24 dc 0 24 0 r . . 8 8 8 0 0 16 0 0 0 0 0 0 0 None 0xf2 24 dc 0 24 0 r . . 8 8 8 0 0 16 0 16 16 16 0 0 0 Slow 0xf3 24 dc 0 24 0 r y . 8 8 8 0 0 16 0 0 0 0 0 0 0 None 0xf4 24 dc 0 24 0 r y . 8 8 8 0 0 16 0 16 16 16 0 0 0 Slow 0xf5 24 dc 0 24 0 r . . 8 8 8 0 0 24 0 0 0 0 0 0 0 None 0xf6 24 dc 0 24 0 r . . 8 8 8 0 0 24 0 16 16 16 0 0 0 Slow 0xf7 24 dc 0 24 0 r y . 8 8 8 0 0 24 0 0 0 0 0 0 0 None 0xf8 24 dc 0 24 0 r y . 8 8 8 0 0 24 0 16 16 16 0 0 0 Slow 0xf9 24 dc 0 24 0 r . . 8 8 8 0 0 24 8 0 0 0 0 0 0 None 0xfa 24 dc 0 24 0 r . . 8 8 8 0 0 24 8 16 16 16 0 0 0 Slow 0xfb 24 dc 0 24 0 r y . 8 8 8 0 0 24 8 0 0 0 0 0 0 None 0xfc 24 dc 0 24 0 r y . 8 8 8 0 0 24 8 16 16 16 0 0 0 Slow 0xfd 24 dc 0 32 0 r . . 8 8 8 8 0 0 0 0 0 0 0 0 0 None 0xfe 24 dc 0 32 0 r . . 8 8 8 8 0 0 0 16 16 16 16 0 0 Slow 0xff 24 dc 0 32 0 r y . 8 8 8 8 0 0 0 0 0 0 0 0 0 None 0x100 24 dc 0 32 0 r y . 8 8 8 8 0 0 0 16 16 16 16 0 0 Slow 0x101 24 dc 0 32 0 r . . 8 8 8 8 0 16 0 0 0 0 0 0 0 None 0x102 24 dc 0 32 0 r . . 8 8 8 8 0 16 0 16 16 16 16 0 0 Slow 0x103 24 dc 0 32 0 r y . 8 8 8 8 0 16 0 0 0 0 0 0 0 None 0x104 24 dc 0 32 0 r y . 8 8 8 8 0 16 0 16 16 16 16 0 0 Slow 0x105 24 dc 0 32 0 r . . 8 8 8 8 0 24 0 0 0 0 0 0 0 None 0x106 24 dc 0 32 0 r . . 8 8 8 8 0 24 0 16 16 16 16 0 0 Slow 0x107 24 dc 0 32 0 r y . 8 8 8 8 0 24 0 0 0 0 0 0 0 None 0x108 24 dc 0 32 0 r y . 8 8 8 8 0 24 0 16 16 16 16 0 0 Slow 0x109 24 dc 0 32 0 r . . 8 8 8 8 0 24 8 0 0 0 0 0 0 None 0x10a 24 dc 0 32 0 r . . 8 8 8 8 0 24 8 16 16 16 16 0 0 Slow 0x10b 24 dc 0 32 0 r y . 8 8 8 8 0 24 8 16 16 16 16 0 0 Slow 0x6e 32 tc 0 32 0 r y . 8 8 8 8 0 16 0 0 0 0 0 0 0 None 96 GLXFBConfigs: 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 ---------------------------------------------------------------------- 0x6f 0 tc 0 16 0 r . . 5 6 5 0 0 0 0 0 0 0 0 0 0 None 0x70 0 tc 0 16 0 r . . 5 6 5 0 0 0 0 16 16 16 0 0 0 Slow 0x71 0 tc 0 16 0 r y . 5 6 5 0 0 0 0 0 0 0 0 0 0 None 0x72 0 tc 0 16 0 r y . 5 6 5 0 0 0 0 16 16 16 0 0 0 Slow 0x73 0 tc 0 16 0 r . . 5 6 5 0 0 16 0 0 0 0 0 0 0 None 0x74 0 tc 0 16 0 r . . 5 6 5 0 0 16 0 16 16 16 0 0 0 Slow 0x75 0 tc 0 16 0 r y . 5 6 5 0 0 16 0 0 0 0 0 0 0 None 0x76 0 tc 0 16 0 r y . 5 6 5 0 0 16 0 16 16 16 0 0 0 Slow 0x77 0 tc 0 16 0 r . . 5 6 5 0 0 24 0 0 0 0 0 0 0 None 0x78 0 tc 0 16 0 r . . 5 6 5 0 0 24 0 16 16 16 0 0 0 Slow 0x79 0 tc 0 16 0 r y . 5 6 5 0 0 24 0 0 0 0 0 0 0 None 0x7a 0 tc 0 16 0 r y . 5 6 5 0 0 24 0 16 16 16 0 0 0 Slow 0x7b 0 tc 0 16 0 r . . 5 6 5 0 0 24 8 0 0 0 0 0 0 None 0x7c 0 tc 0 16 0 r . . 5 6 5 0 0 24 8 16 16 16 0 0 0 Slow 0x7d 0 tc 0 16 0 r y . 5 6 5 0 0 24 8 0 0 0 0 0 0 None 0x7e 0 tc 0 16 0 r y . 5 6 5 0 0 24 8 16 16 16 0 0 0 Slow 0x7f 0 tc 0 24 0 r . . 8 8 8 0 0 0 0 0 0 0 0 0 0 None 0x80 0 tc 0 24 0 r . . 8 8 8 0 0 0 0 16 16 16 0 0 0 Slow 0x81 0 tc 0 24 0 r y . 8 8 8 0 0 0 0 0 0 0 0 0 0 None 0x82 0 tc 0 24 0 r y . 8 8 8 0 0 0 0 16 16 16 0 0 0 Slow 0x83 0 tc 0 24 0 r . . 8 8 8 0 0 16 0 0 0 0 0 0 0 None 0x84 0 tc 0 24 0 r . . 8 8 8 0 0 16 0 16 16 16 0 0 0 Slow 0x85 0 tc 0 24 0 r y . 8 8 8 0 0 16 0 0 0 0 0 0 0 None 0x86 0 tc 0 24 0 r y . 8 8 8 0 0 16 0 16 16 16 0 0 0 Slow 0x87 0 tc 0 24 0 r . . 8 8 8 0 0 24 0 0 0 0 0 0 0 None 0x88 0 tc 0 24 0 r . . 8 8 8 0 0 24 0 16 16 16 0 0 0 Slow 0x89 0 tc 0 24 0 r y . 8 8 8 0 0 24 0 0 0 0 0 0 0 None 0x8a 0 tc 0 24 0 r y . 8 8 8 0 0 24 0 16 16 16 0 0 0 Slow 0x8b 0 tc 0 24 0 r . . 8 8 8 0 0 24 8 0 0 0 0 0 0 None 0x8c 0 tc 0 24 0 r . . 8 8 8 0 0 24 8 16 16 16 0 0 0 Slow 0x8d 0 tc 0 24 0 r y . 8 8 8 0 0 24 8 0 0 0 0 0 0 None 0x8e 0 tc 0 24 0 r y . 8 8 8 0 0 24 8 16 16 16 0 0 0 Slow 0x8f 0 tc 0 32 0 r . . 8 8 8 8 0 0 0 0 0 0 0 0 0 None 0x90 0 tc 0 32 0 r . . 8 8 8 8 0 0 0 16 16 16 16 0 0 Slow 0x91 0 tc 0 32 0 r y . 8 8 8 8 0 0 0 0 0 0 0 0 0 None 0x92 0 tc 0 32 0 r y . 8 8 8 8 0 0 0 16 16 16 16 0 0 Slow 0x93 0 tc 0 32 0 r . . 8 8 8 8 0 16 0 0 0 0 0 0 0 None 0x94 0 tc 0 32 0 r . . 8 8 8 8 0 16 0 16 16 16 16 0 0 Slow 0x95 0 tc 0 32 0 r y . 8 8 8 8 0 16 0 0 0 0 0 0 0 None 0x96 0 tc 0 32 0 r y . 8 8 8 8 0 16 0 16 16 16 16 0 0 Slow 0x97 0 tc 0 32 0 r . . 8 8 8 8 0 24 0 0 0 0 0 0 0 None 0x98 0 tc 0 32 0 r . . 8 8 8 8 0 24 0 16 16 16 16 0 0 Slow 0x99 0 tc 0 32 0 r y . 8 8 8 8 0 24 0 0 0 0 0 0 0 None 0x9a 0 tc 0 32 0 r y . 8 8 8 8 0 24 0 16 16 16 16 0 0 Slow 0x9b 0 tc 0 32 0 r . . 8 8 8 8 0 24 8 0 0 0 0 0 0 None 0x9c 0 tc 0 32 0 r . . 8 8 8 8 0 24 8 16 16 16 16 0 0 Slow 0x9d 0 tc 0 32 0 r y . 8 8 8 8 0 24 8 0 0 0 0 0 0 None 0x9e 0 tc 0 32 0 r y . 8 8 8 8 0 24 8 16 16 16 16 0 0 Slow 0x9f 0 dc 0 16 0 r . . 5 6 5 0 0 0 0 0 0 0 0 0 0 None 0xa0 0 dc 0 16 0 r . . 5 6 5 0 0 0 0 16 16 16 0 0 0 Slow 0xa1 0 dc 0 16 0 r y . 5 6 5 0 0 0 0 0 0 0 0 0 0 None 0xa2 0 dc 0 16 0 r y . 5 6 5 0 0 0 0 16 16 16 0 0 0 Slow 0xa3 0 dc 0 16 0 r . . 5 6 5 0 0 16 0 0 0 0 0 0 0 None 0xa4 0 dc 0 16 0 r . . 5 6 5 0 0 16 0 16 16 16 0 0 0 Slow 0xa5 0 dc 0 16 0 r y . 5 6 5 0 0 16 0 0 0 0 0 0 0 None 0xa6 0 dc 0 16 0 r y . 5 6 5 0 0 16 0 16 16 16 0 0 0 Slow 0xa7 0 dc 0 16 0 r . . 5 6 5 0 0 24 0 0 0 0 0 0 0 None 0xa8 0 dc 0 16 0 r . . 5 6 5 0 0 24 0 16 16 16 0 0 0 Slow 0xa9 0 dc 0 16 0 r y . 5 6 5 0 0 24 0 0 0 0 0 0 0 None 0xaa 0 dc 0 16 0 r y . 5 6 5 0 0 24 0 16 16 16 0 0 0 Slow 0xab 0 dc 0 16 0 r . . 5 6 5 0 0 24 8 0 0 0 0 0 0 None 0xac 0 dc 0 16 0 r . . 5 6 5 0 0 24 8 16 16 16 0 0 0 Slow 0xad 0 dc 0 16 0 r y . 5 6 5 0 0 24 8 0 0 0 0 0 0 None 0xae 0 dc 0 16 0 r y . 5 6 5 0 0 24 8 16 16 16 0 0 0 Slow 0xaf 0 dc 0 24 0 r . . 8 8 8 0 0 0 0 0 0 0 0 0 0 None 0xb0 0 dc 0 24 0 r . . 8 8 8 0 0 0 0 16 16 16 0 0 0 Slow 0xb1 0 dc 0 24 0 r y . 8 8 8 0 0 0 0 0 0 0 0 0 0 None 0xb2 0 dc 0 24 0 r y . 8 8 8 0 0 0 0 16 16 16 0 0 0 Slow 0xb3 0 dc 0 24 0 r . . 8 8 8 0 0 16 0 0 0 0 0 0 0 None 0xb4 0 dc 0 24 0 r . . 8 8 8 0 0 16 0 16 16 16 0 0 0 Slow 0xb5 0 dc 0 24 0 r y . 8 8 8 0 0 16 0 0 0 0 0 0 0 None 0xb6 0 dc 0 24 0 r y . 8 8 8 0 0 16 0 16 16 16 0 0 0 Slow 0xb7 0 dc 0 24 0 r . . 8 8 8 0 0 24 0 0 0 0 0 0 0 None 0xb8 0 dc 0 24 0 r . . 8 8 8 0 0 24 0 16 16 16 0 0 0 Slow 0xb9 0 dc 0 24 0 r y . 8 8 8 0 0 24 0 0 0 0 0 0 0 None 0xba 0 dc 0 24 0 r y . 8 8 8 0 0 24 0 16 16 16 0 0 0 Slow 0xbb 0 dc 0 24 0 r . . 8 8 8 0 0 24 8 0 0 0 0 0 0 None 0xbc 0 dc 0 24 0 r . . 8 8 8 0 0 24 8 16 16 16 0 0 0 Slow 0xbd 0 dc 0 24 0 r y . 8 8 8 0 0 24 8 0 0 0 0 0 0 None 0xbe 0 dc 0 24 0 r y . 8 8 8 0 0 24 8 16 16 16 0 0 0 Slow 0xbf 0 dc 0 32 0 r . . 8 8 8 8 0 0 0 0 0 0 0 0 0 None 0xc0 0 dc 0 32 0 r . . 8 8 8 8 0 0 0 16 16 16 16 0 0 Slow 0xc1 0 dc 0 32 0 r y . 8 8 8 8 0 0 0 0 0 0 0 0 0 None 0xc2 0 dc 0 32 0 r y . 8 8 8 8 0 0 0 16 16 16 16 0 0 Slow 0xc3 0 dc 0 32 0 r . . 8 8 8 8 0 16 0 0 0 0 0 0 0 None 0xc4 0 dc 0 32 0 r . . 8 8 8 8 0 16 0 16 16 16 16 0 0 Slow 0xc5 0 dc 0 32 0 r y . 8 8 8 8 0 16 0 0 0 0 0 0 0 None 0xc6 0 dc 0 32 0 r y . 8 8 8 8 0 16 0 16 16 16 16 0 0 Slow 0xc7 0 dc 0 32 0 r . . 8 8 8 8 0 24 0 0 0 0 0 0 0 None 0xc8 0 dc 0 32 0 r . . 8 8 8 8 0 24 0 16 16 16 16 0 0 Slow 0xc9 0 dc 0 32 0 r y . 8 8 8 8 0 24 0 0 0 0 0 0 0 None 0xca 0 dc 0 32 0 r y . 8 8 8 8 0 24 0 16 16 16 16 0 0 Slow 0xcb 0 dc 0 32 0 r . . 8 8 8 8 0 24 8 0 0 0 0 0 0 None 0xcc 0 dc 0 32 0 r . . 8 8 8 8 0 24 8 16 16 16 16 0 0 Slow 0xcd 0 dc 0 32 0 r y . 8 8 8 8 0 24 8 0 0 0 0 0 0 None 0xce 0 dc 0 32 0 r y . 8 8 8 8 0 24 8 16 16 16 16 0 0 Slow Reproducible: Always
Created attachment 54567 [details] Screenshot of Effect How the effect looks like.
please try to set the scale method to "smooth" instead of "accurate"
Thanks, with scale method "smooth" there are no problems, everything works as expected.
Do you use some sort of window translucency (ARGB support in Bespin/QtCurve/Oxygen or fixed window opacity < 100%) or are the invisible windows supposed to be "just default opaque windows"
I use the default settings and didn't change the window opacity option. And every window gets invisible after the movement.
what about thumbnails in the tooltips?
The thumbnails are only white with accurate, while with smooth there is a picture shown. Also for Desktop Grid something simmilar is happening, with accurate the whole window (expect the + and - at the bottom) gets black, while with smooth everything works. Everything seems to work.
this is most likely #258439 - if you compile yourself you can test one of the patches attached there, but it may also be that shader support in your driver is just _really_ broken :-(
Its not fixed. It looks now different thow.. The windows are not any longer black at the end of the movement, they are now gray and the active one is invisible. Are there other ways to test the shader support? It seems that also the Blur effect cannot be entabled.. =(
I think lanczos & blur are currently the only effects supporting ARB shader - everthing else would use glsl (apparently not supported by the driver) or no shaders at all. I fear you'll have to wait for a driver update, sorry :-( If XRender is ok for you and you want some sort of blurring, have a look here: http://kde-apps.org/content/show.php/BeDistorted?content=126906
It seems that the driver is the newest version (6.13.1). If also others have the same problem, it might be a good idea to default the scale method to "smooth" on the free radeon driver. Thanks for your help and work on kwin.
altogether, it's a driver bug :-(
Please note that you're using an outdated version of Mesa. The current release is 7.10. The R600 driver was in an early stage of development in Mesa 7.7, and this problem should not be reproducible in more recent versions. xf86-video-ati which you were referring to is the 2D driver.