Following: http://intellinuxgraphics.org/how_to_report_bug.html System environment: -- chipset: (e.g. G965) i915 -- system architecture: ("uname -m") i686 -- xf86-video-intel/xserver/mesa/libdrm version: (If it's built by yourself, provide the git commit id or stable release version. If it's shipped with distribution, provide libdrm version with "pkg-config --modversion libdrm": pkg-config --modversion libdrm Package libdrm was not found in the pkg-config search path. Perhaps you should add the directory containing `libdrm.pc' to the PKG_CONFIG_PATH environment variable No package 'libdrm' found and mesa version with glxinfo: glxinfo name of display: :0.0 display: :0 screen: 0 direct rendering: Yes server glx vendor string: SGI server glx version string: 1.4 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, GLX_INTEL_swap_event 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_EXT_framebuffer_sRGB, GLX_MESA_copy_sub_buffer, GLX_MESA_multithread_makecurrent, GLX_MESA_swap_control, 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_INTEL_swap_event GLX version: 1.4 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_multithread_makecurrent, GLX_MESA_swap_control, 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_INTEL_swap_event OpenGL vendor string: Tungsten Graphics, Inc OpenGL renderer string: Mesa DRI Intel(R) Sandybridge Mobile x86/MMX/SSE2 OpenGL version string: 2.1 Mesa 7.11 OpenGL shading language version string: 1.20 OpenGL extensions: GL_ARB_multisample, GL_EXT_abgr, GL_EXT_bgra, GL_EXT_blend_color, GL_EXT_blend_logic_op, GL_EXT_blend_minmax, GL_EXT_blend_subtract, GL_EXT_copy_texture, GL_EXT_polygon_offset, GL_EXT_subtexture, GL_EXT_texture_object, GL_EXT_vertex_array, GL_EXT_compiled_vertex_array, GL_EXT_texture, GL_EXT_texture3D, GL_IBM_rasterpos_clip, GL_ARB_point_parameters, GL_EXT_draw_range_elements, GL_EXT_packed_pixels, GL_EXT_point_parameters, GL_EXT_rescale_normal, GL_EXT_separate_specular_color, GL_EXT_texture_edge_clamp, GL_SGIS_generate_mipmap, GL_SGIS_texture_border_clamp, GL_SGIS_texture_edge_clamp, GL_SGIS_texture_lod, GL_ARB_framebuffer_sRGB, GL_ARB_multitexture, GL_EXT_framebuffer_sRGB, GL_IBM_multimode_draw_arrays, GL_IBM_texture_mirrored_repeat, GL_3DFX_texture_compression_FXT1, GL_ARB_texture_cube_map, GL_ARB_texture_env_add, GL_ARB_transpose_matrix, GL_EXT_blend_func_separate, GL_EXT_fog_coord, GL_EXT_multi_draw_arrays, GL_EXT_secondary_color, GL_EXT_texture_env_add, GL_EXT_texture_filter_anisotropic, GL_EXT_texture_lod_bias, GL_INGR_blend_func_separate, GL_NV_blend_square, GL_NV_light_max_exponent, GL_NV_texgen_reflection, GL_NV_texture_env_combine4, GL_SUN_multi_draw_arrays, GL_ARB_texture_border_clamp, GL_ARB_texture_compression, GL_EXT_framebuffer_object, GL_EXT_texture_env_dot3, GL_MESA_window_pos, GL_NV_packed_depth_stencil, GL_NV_texture_rectangle, GL_NV_vertex_program, GL_ARB_depth_texture, GL_ARB_occlusion_query, GL_ARB_shadow, GL_ARB_texture_env_combine, GL_ARB_texture_env_crossbar, GL_ARB_texture_env_dot3, GL_ARB_texture_mirrored_repeat, GL_ARB_window_pos, GL_ATI_envmap_bumpmap, GL_EXT_stencil_two_side, GL_EXT_texture_cube_map, GL_NV_depth_clamp, GL_NV_vertex_program1_1, GL_APPLE_client_storage, GL_APPLE_packed_pixels, GL_APPLE_vertex_array_object, GL_ARB_draw_buffers, GL_ARB_fragment_program, GL_ARB_fragment_shader, GL_ARB_shader_objects, GL_ARB_vertex_program, GL_ARB_vertex_shader, GL_ATI_draw_buffers, GL_ATI_texture_env_combine3, GL_EXT_shadow_funcs, GL_EXT_stencil_wrap, GL_MESA_pack_invert, GL_MESA_ycbcr_texture, GL_ARB_depth_clamp, GL_ARB_fragment_program_shadow, GL_ARB_half_float_pixel, GL_ARB_point_sprite, GL_ARB_shading_language_100, GL_ARB_sync, GL_ARB_texture_non_power_of_two, GL_ARB_vertex_buffer_object, GL_ATI_blend_equation_separate, GL_EXT_blend_equation_separate, GL_OES_read_format, GL_ARB_color_buffer_float, GL_ARB_pixel_buffer_object, GL_ARB_texture_compression_rgtc, GL_ARB_texture_rectangle, GL_EXT_pixel_buffer_object, GL_EXT_texture_compression_rgtc, GL_EXT_texture_rectangle, GL_EXT_texture_sRGB, GL_ARB_framebuffer_object, GL_EXT_framebuffer_blit, GL_EXT_framebuffer_multisample, GL_EXT_packed_depth_stencil, GL_APPLE_object_purgeable, GL_ARB_vertex_array_object, GL_ATI_separate_stencil, GL_EXT_draw_buffers2, GL_EXT_gpu_program_parameters, GL_EXT_texture_env_combine, GL_EXT_texture_sRGB_decode, GL_EXT_timer_query, GL_OES_EGL_image, GL_ARB_copy_buffer, GL_ARB_half_float_vertex, GL_ARB_map_buffer_range, GL_ARB_texture_rg, GL_ARB_texture_swizzle, GL_ARB_vertex_array_bgra, GL_EXT_separate_shader_objects, GL_EXT_texture_swizzle, GL_EXT_vertex_array_bgra, GL_NV_conditional_render, GL_ARB_ES2_compatibility, GL_ARB_draw_elements_base_vertex, GL_ARB_explicit_attrib_location, GL_ARB_fragment_coord_conventions, GL_ARB_provoking_vertex, GL_ARB_sampler_objects, GL_ARB_seamless_cube_map, GL_ARB_shader_texture_lod, GL_EXT_provoking_vertex, GL_EXT_texture_snorm, GL_MESA_texture_signed_rgba, GL_ARB_robustness 32 GLX Visuals visual x bf lv rg d st colorbuffer sr ax dp st accumbuffer ms cav id dep cl sp sz l ci b ro r g b a F gb bf th cl r g b a ns b eat ---------------------------------------------------------------------------- 0x021 24 tc 0 32 0 r y . 8 8 8 8 . . 0 24 8 0 0 0 0 0 0 None 0x022 24 dc 0 32 0 r y . 8 8 8 8 . . 0 24 8 0 0 0 0 0 0 None 0x090 24 tc 0 24 0 r . . 8 8 8 0 . . 0 0 0 0 0 0 0 0 0 None 0x091 24 tc 0 24 0 r y . 8 8 8 0 . . 0 0 0 0 0 0 0 0 0 None 0x092 24 tc 0 24 0 r y . 8 8 8 0 . . 0 0 0 0 0 0 0 0 0 None 0x093 24 tc 0 24 0 r . . 8 8 8 0 . . 0 24 8 0 0 0 0 0 0 None 0x094 24 tc 0 24 0 r y . 8 8 8 0 . . 0 24 8 0 0 0 0 0 0 None 0x095 24 tc 0 24 0 r y . 8 8 8 0 . . 0 24 8 0 0 0 0 0 0 None 0x096 24 tc 0 32 0 r . . 8 8 8 8 . . 0 0 0 0 0 0 0 0 0 None 0x097 24 tc 0 32 0 r y . 8 8 8 8 . . 0 0 0 0 0 0 0 0 0 None 0x098 24 tc 0 32 0 r y . 8 8 8 8 . . 0 0 0 0 0 0 0 0 0 None 0x099 24 tc 0 32 0 r . . 8 8 8 8 . . 0 24 8 0 0 0 0 0 0 None 0x09a 24 tc 0 24 0 r y . 8 8 8 0 . . 0 24 8 0 0 0 0 0 0 None 0x09b 24 tc 0 24 0 r y . 8 8 8 0 . . 0 24 8 16 16 16 0 0 0 Slow 0x09c 24 tc 0 32 0 r y . 8 8 8 8 . . 0 24 8 0 0 0 0 0 0 None 0x09d 24 tc 0 32 0 r y . 8 8 8 8 . . 0 24 8 16 16 16 16 0 0 Slow 0x09e 24 dc 0 24 0 r . . 8 8 8 0 . . 0 0 0 0 0 0 0 0 0 None 0x09f 24 dc 0 24 0 r y . 8 8 8 0 . . 0 0 0 0 0 0 0 0 0 None 0x0a0 24 dc 0 24 0 r y . 8 8 8 0 . . 0 0 0 0 0 0 0 0 0 None 0x0a1 24 dc 0 24 0 r . . 8 8 8 0 . . 0 24 8 0 0 0 0 0 0 None 0x0a2 24 dc 0 24 0 r y . 8 8 8 0 . . 0 24 8 0 0 0 0 0 0 None 0x0a3 24 dc 0 24 0 r y . 8 8 8 0 . . 0 24 8 0 0 0 0 0 0 None 0x0a4 24 dc 0 32 0 r . . 8 8 8 8 . . 0 0 0 0 0 0 0 0 0 None 0x0a5 24 dc 0 32 0 r y . 8 8 8 8 . . 0 0 0 0 0 0 0 0 0 None 0x0a6 24 dc 0 32 0 r y . 8 8 8 8 . . 0 0 0 0 0 0 0 0 0 None 0x0a7 24 dc 0 32 0 r . . 8 8 8 8 . . 0 24 8 0 0 0 0 0 0 None 0x0a8 24 dc 0 32 0 r y . 8 8 8 8 . . 0 24 8 0 0 0 0 0 0 None 0x0a9 24 dc 0 24 0 r y . 8 8 8 0 . . 0 24 8 0 0 0 0 0 0 None 0x0aa 24 dc 0 24 0 r y . 8 8 8 0 . . 0 24 8 16 16 16 0 0 0 Slow 0x0ab 24 dc 0 32 0 r y . 8 8 8 8 . . 0 24 8 0 0 0 0 0 0 None 0x0ac 24 dc 0 32 0 r y . 8 8 8 8 . . 0 24 8 16 16 16 16 0 0 Slow 0x05f 32 tc 0 32 0 r y . 8 8 8 8 . . 0 24 8 0 0 0 0 0 0 None 48 GLXFBConfigs: visual x bf lv rg d st colorbuffer sr ax dp st accumbuffer ms cav id dep cl sp sz l ci b ro r g b a F gb bf th cl r g b a ns b eat ---------------------------------------------------------------------------- 0x060 0 tc 0 16 0 r . . 5 6 5 0 . . 0 0 0 0 0 0 0 0 0 None 0x061 0 tc 0 16 0 r y . 5 6 5 0 . . 0 0 0 0 0 0 0 0 0 None 0x062 0 tc 0 16 0 r y . 5 6 5 0 . . 0 0 0 0 0 0 0 0 0 None 0x063 0 tc 0 16 0 r . . 5 6 5 0 . . 0 16 0 0 0 0 0 0 0 None 0x064 0 tc 0 16 0 r y . 5 6 5 0 . . 0 16 0 0 0 0 0 0 0 None 0x065 0 tc 0 16 0 r y . 5 6 5 0 . . 0 16 0 0 0 0 0 0 0 None 0x066 24 tc 0 24 0 r . . 8 8 8 0 . . 0 0 0 0 0 0 0 0 0 None 0x067 24 tc 0 24 0 r y . 8 8 8 0 . . 0 0 0 0 0 0 0 0 0 None 0x068 24 tc 0 24 0 r y . 8 8 8 0 . . 0 0 0 0 0 0 0 0 0 None 0x069 24 tc 0 24 0 r . . 8 8 8 0 . . 0 24 8 0 0 0 0 0 0 None 0x06a 24 tc 0 24 0 r y . 8 8 8 0 . . 0 24 8 0 0 0 0 0 0 None 0x06b 24 tc 0 24 0 r y . 8 8 8 0 . . 0 24 8 0 0 0 0 0 0 None 0x06c 24 tc 0 32 0 r . . 8 8 8 8 . . 0 0 0 0 0 0 0 0 0 None 0x06d 24 tc 0 32 0 r y . 8 8 8 8 . . 0 0 0 0 0 0 0 0 0 None 0x06e 24 tc 0 32 0 r y . 8 8 8 8 . . 0 0 0 0 0 0 0 0 0 None 0x06f 24 tc 0 32 0 r . . 8 8 8 8 . . 0 24 8 0 0 0 0 0 0 None 0x070 24 tc 0 32 0 r y . 8 8 8 8 . . 0 24 8 0 0 0 0 0 0 None 0x071 32 tc 0 32 0 r y . 8 8 8 8 . . 0 24 8 0 0 0 0 0 0 None 0x072 0 tc 0 16 0 r y . 5 6 5 0 . . 0 16 0 0 0 0 0 0 0 None 0x073 0 tc 0 16 0 r y . 5 6 5 0 . . 0 16 0 16 16 16 0 0 0 Slow 0x074 24 tc 0 24 0 r y . 8 8 8 0 . . 0 24 8 0 0 0 0 0 0 None 0x075 24 tc 0 24 0 r y . 8 8 8 0 . . 0 24 8 16 16 16 0 0 0 Slow 0x076 24 tc 0 32 0 r y . 8 8 8 8 . . 0 24 8 0 0 0 0 0 0 None 0x077 24 tc 0 32 0 r y . 8 8 8 8 . . 0 24 8 16 16 16 16 0 0 Slow 0x078 0 dc 0 16 0 r . . 5 6 5 0 . . 0 0 0 0 0 0 0 0 0 None 0x079 0 dc 0 16 0 r y . 5 6 5 0 . . 0 0 0 0 0 0 0 0 0 None 0x07a 0 dc 0 16 0 r y . 5 6 5 0 . . 0 0 0 0 0 0 0 0 0 None 0x07b 0 dc 0 16 0 r . . 5 6 5 0 . . 0 16 0 0 0 0 0 0 0 None 0x07c 0 dc 0 16 0 r y . 5 6 5 0 . . 0 16 0 0 0 0 0 0 0 None 0x07d 0 dc 0 16 0 r y . 5 6 5 0 . . 0 16 0 0 0 0 0 0 0 None 0x07e 24 dc 0 24 0 r . . 8 8 8 0 . . 0 0 0 0 0 0 0 0 0 None 0x07f 24 dc 0 24 0 r y . 8 8 8 0 . . 0 0 0 0 0 0 0 0 0 None 0x080 24 dc 0 24 0 r y . 8 8 8 0 . . 0 0 0 0 0 0 0 0 0 None 0x081 24 dc 0 24 0 r . . 8 8 8 0 . . 0 24 8 0 0 0 0 0 0 None 0x082 24 dc 0 24 0 r y . 8 8 8 0 . . 0 24 8 0 0 0 0 0 0 None 0x083 24 dc 0 24 0 r y . 8 8 8 0 . . 0 24 8 0 0 0 0 0 0 None 0x084 24 dc 0 32 0 r . . 8 8 8 8 . . 0 0 0 0 0 0 0 0 0 None 0x085 24 dc 0 32 0 r y . 8 8 8 8 . . 0 0 0 0 0 0 0 0 0 None 0x086 24 dc 0 32 0 r y . 8 8 8 8 . . 0 0 0 0 0 0 0 0 0 None 0x087 24 dc 0 32 0 r . . 8 8 8 8 . . 0 24 8 0 0 0 0 0 0 None 0x088 24 dc 0 32 0 r y . 8 8 8 8 . . 0 24 8 0 0 0 0 0 0 None 0x089 24 dc 0 32 0 r y . 8 8 8 8 . . 0 24 8 0 0 0 0 0 0 None 0x08a 0 dc 0 16 0 r y . 5 6 5 0 . . 0 16 0 0 0 0 0 0 0 None 0x08b 0 dc 0 16 0 r y . 5 6 5 0 . . 0 16 0 16 16 16 0 0 0 Slow 0x08c 24 dc 0 24 0 r y . 8 8 8 0 . . 0 24 8 0 0 0 0 0 0 None 0x08d 24 dc 0 24 0 r y . 8 8 8 0 . . 0 24 8 16 16 16 0 0 0 Slow 0x08e 24 dc 0 32 0 r y . 8 8 8 8 . . 0 24 8 0 0 0 0 0 0 None 0x08f 24 dc 0 32 0 r y . 8 8 8 8 . . 0 24 8 16 16 16 16 0 0 Slow while xf86-video-intel and xserver version are available in Xorg.0.log.) apt-cache policy xserver-xorg-video-intel xserver-xorg-video-intel: Installed: 2:2.17.0-1ubuntu3 Candidate: 2:2.17.0-1ubuntu4 Version table: 2:2.17.0-1ubuntu4 0 500 http://archive.ubuntu.com/ubuntu/ precise/main i386 Packages *** 2:2.17.0-1ubuntu3 0 100 /var/lib/dpkg/status apt-cache policy xorg xorg: Installed: 1:7.6+10ubuntu1 Candidate: 1:7.6+10ubuntu1 Version table: *** 1:7.6+10ubuntu1 0 500 http://archive.ubuntu.com/ubuntu/ precise/main i386 Packages 100 /var/lib/dpkg/status -- kernel version: ("uname -r") 3.2.0-12-generic-pae -- Linux distribution: lsb_release -rd Description: Ubuntu precise (development branch) Release: 12.04 -- Machine or mobo model: Acer Aspire 5750-9668 -- Display connector: (e.g. VGA, DVI, HDMI, S-video, ...) I am using the main laptop screen with no secondary monitor. 3) Reproduce steps. Probability if not 100% reproducible. What is expected to happen in a blank Calc document is when one resizes the window, it does not have screen display corruptions. What happens is it does as per screenshot https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/871972/+attachment/2535351/+files/screenshot.png . Following https://wiki.ubuntu.com/Backtrace please see https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/871972/+attachment/2535349/+files/gdb-libreoffice.txt for backtrace information. 4) Attachment: -- Xorg.0.log https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/871972/+attachment/2776966/+files/Xorg.0.log -- dmesg output (better with boot option "drm.debug=0x06") https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/871972/+attachment/2776965/+files/dmesg -- xorg.conf (if you changed any default options) sudo find / 'xorg.conf' | grep xorg.conf /usr/share/X11/xorg.conf.d /usr/share/X11/xorg.conf.d/10-evdev.conf /usr/share/X11/xorg.conf.d/11-evdev-quirks.conf /usr/share/X11/xorg.conf.d/11-evdev-trackpoint.conf /usr/share/X11/xorg.conf.d/50-synaptics.conf /usr/share/X11/xorg.conf.d/50-vmmouse.conf /usr/share/X11/xorg.conf.d/50-wacom.conf /usr/share/X11/xorg.conf.d/51-synaptics-quirks.conf /usr/share/man/man5/xorg.conf.5.gz /usr/share/man/man5/xorg.conf.d.5.gz /rofs/usr/share/X11/xorg.conf.d /rofs/usr/share/X11/xorg.conf.d/10-evdev.conf /rofs/usr/share/X11/xorg.conf.d/11-evdev-quirks.conf /rofs/usr/share/X11/xorg.conf.d/11-evdev-trackpoint.conf /rofs/usr/share/X11/xorg.conf.d/50-synaptics.conf /rofs/usr/share/X11/xorg.conf.d/50-vmmouse.conf /rofs/usr/share/X11/xorg.conf.d/50-wacom.conf /rofs/usr/share/X11/xorg.conf.d/51-synaptics-quirks.conf /rofs/usr/share/man/man5/xorg.conf.5.gz /rofs/usr/share/man/man5/xorg.conf.d.5.gz Would you like to be more specific?! :D -- screenshot or photo (optional, a picture is worth a thousand words) https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/871972/+attachment/2535351/+files/screenshot.png -- output of "xrandr --verbose" for display mode issue Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192 LVDS1 connected 1366x768+0+0 (0x45) normal (normal left inverted right x axis y axis) 344mm x 193mm Identifier: 0x41 Timestamp: 166198 Subpixel: horizontal rgb Gamma: 1.0:1.0:1.0 Brightness: 1.0 Clones: CRTC: 0 CRTCs: 0 1 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: EDID: 00ffffffffffff0006afec2200000000 01130103802213780ac8959e57549226 0f505400000001010101010101010101 010101010101121b5642500026302018 340058c1100000180000000f00000000 00000000000000000020000000fe0041 554f0a202020202020202020000000fe 004231353658573032205632200a00c0 BACKLIGHT: 9 (0x00000009) range: (0,9) Backlight: 9 (0x00000009) range: (0,9) scaling mode: Full aspect supported: None Full Center Full aspect 1366x768 (0x45) 69.3MHz -HSync -VSync *current +preferred h: width 1366 start 1398 end 1422 total 1432 skew 0 clock 48.4KHz v: height 768 start 771 end 775 total 806 clock 60.0Hz 1360x768 (0x46) 84.8MHz -HSync +VSync h: width 1360 start 1432 end 1568 total 1776 skew 0 clock 47.7KHz v: height 768 start 771 end 781 total 798 clock 59.8Hz 1360x768 (0x47) 72.0MHz +HSync -VSync h: width 1360 start 1408 end 1440 total 1520 skew 0 clock 47.4KHz v: height 768 start 771 end 781 total 790 clock 60.0Hz 1024x768 (0x48) 65.0MHz -HSync -VSync h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.4KHz v: height 768 start 771 end 777 total 806 clock 60.0Hz 800x600 (0x49) 40.0MHz +HSync +VSync h: width 800 start 840 end 968 total 1056 skew 0 clock 37.9KHz v: height 600 start 601 end 605 total 628 clock 60.3Hz 800x600 (0x4a) 36.0MHz +HSync +VSync h: width 800 start 824 end 896 total 1024 skew 0 clock 35.2KHz v: height 600 start 601 end 603 total 625 clock 56.2Hz 640x480 (0x4b) 25.2MHz -HSync -VSync h: width 640 start 656 end 752 total 800 skew 0 clock 31.5KHz v: height 480 start 490 end 492 total 525 clock 59.9Hz VGA1 disconnected (normal left inverted right x axis y axis) Identifier: 0x42 Timestamp: 166198 Subpixel: unknown Clones: CRTCs: 0 1 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: HDMI1 disconnected (normal left inverted right x axis y axis) Identifier: 0x43 Timestamp: 166198 Subpixel: unknown Clones: CRTCs: 0 1 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: Broadcast RGB: Full supported: Full Limited 16:2 audio: auto supported: off auto on DP1 disconnected (normal left inverted right x axis y axis) Identifier: 0x44 Timestamp: 166198 Subpixel: unknown Clones: CRTCs: 0 1 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: Broadcast RGB: Full supported: Full Limited 16:2 audio: auto supported: off auto on -- intel_reg_dumper output (see the guide) sudo intel_reg_dumper PGETBL_CTL: 0x00000000 GEN6_INSTDONE_1: 0xfffffffe GEN6_INSTDONE_2: 0xffffffff CPU_VGACNTRL: 0x80000000 (disabled) DIGITAL_PORT_HOTPLUG_CNTRL: 0x00000000 RR_HW_CTL: 0x00000000 (low 0, high 0) FDI_PLL_BIOS_0: 0xffffffff FDI_PLL_BIOS_1: 0xffffffff FDI_PLL_BIOS_2: 0xffffffff DISPLAY_PORT_PLL_BIOS_0: 0xffffffff DISPLAY_PORT_PLL_BIOS_1: 0xffffffff DISPLAY_PORT_PLL_BIOS_2: 0xffffffff FDI_PLL_FREQ_CTL: 0xffffffff PIPEACONF: 0xc0000050 (enabled, active, 6bpc) HTOTAL_A: 0x05970555 (1366 active, 1432 total) HBLANK_A: 0x05970555 (1366 start, 1432 end) HSYNC_A: 0x058d0575 (1398 start, 1422 end) VTOTAL_A: 0x032502ff (768 active, 806 total) VBLANK_A: 0x032502ff (768 start, 806 end) VSYNC_A: 0x03060302 (771 start, 775 end) VSYNCSHIFT_A: 0x00000000 PIPEASRC: 0x055502ff (1366, 768) PIPEA_DATA_M1: 0x7e1308a8 (TU 64, val 0x1308a8 1247400) PIPEA_DATA_N1: 0x0020f580 (val 0x20f580 2160000) PIPEA_DATA_M2: 0x00000000 (TU 1, val 0x0 0) PIPEA_DATA_N2: 0x00000000 (val 0x0 0) PIPEA_LINK_M1: 0x00010eb4 (val 0x10eb4 69300) PIPEA_LINK_N1: 0x00041eb0 (val 0x41eb0 270000) PIPEA_LINK_M2: 0x00000000 (val 0x0 0) PIPEA_LINK_N2: 0x00000000 (val 0x0 0) DSPACNTR: 0xd8004400 (enabled) DSPABASE: 0x00000000 DSPASTRIDE: 0x00001600 (88) DSPASURF: 0x00470000 DSPATILEOFF: 0x00000000 (0, 0) PIPEBCONF: 0x00000000 (disabled, inactive, 8bpc) HTOTAL_B: 0x00000000 (1 active, 1 total) HBLANK_B: 0x00000000 (1 start, 1 end) HSYNC_B: 0x00000000 (1 start, 1 end) VTOTAL_B: 0x00000000 (1 active, 1 total) VBLANK_B: 0x00000000 (1 start, 1 end) VSYNC_B: 0x00000000 (1 start, 1 end) VSYNCSHIFT_B: 0x00000000 DSPBCNTR: 0x00004000 (disabled) DSPBBASE: 0x00000000 DSPBSTRIDE: 0x00000000 (0) DSPBSURF: 0x00000000 DSPBTILEOFF: 0x00000000 (0, 0) PIPEBSRC: 0x00000000 (1, 1) PIPEB_DATA_M1: 0x00000000 (TU 1, val 0x0 0) PIPEB_DATA_N1: 0x00000000 (val 0x0 0) PIPEB_DATA_M2: 0x00000000 (TU 1, val 0x0 0) PIPEB_DATA_N2: 0x00000000 (val 0x0 0) PIPEB_LINK_M1: 0x00000000 (val 0x0 0) PIPEB_LINK_N1: 0x00000000 (val 0x0 0) PIPEB_LINK_M2: 0x00000000 (val 0x0 0) PIPEB_LINK_N2: 0x00000000 (val 0x0 0) PFA_CTL_1: 0x00000000 (disable, auto_scale yes, auto_scale_cal no, v_filter enable, vadapt disable, mode least, filter_sel programmed,chroma pre-filter disable, vert3tap auto, v_inter_invert field 1) PFA_CTL_2: 0x00007e80 (vscale 0.988281) PFA_CTL_3: 0x00003f40 (vscale initial phase 0.494141) PFA_CTL_4: 0x00007d54 (hscale 0.979126) PFA_WIN_POS: 0x00000000 (0, 0) PFA_WIN_SIZE: 0x00000000 (0, 0) PFB_CTL_1: 0x00000000 (disable, auto_scale yes, auto_scale_cal no, v_filter enable, vadapt disable, mode least, filter_sel programmed,chroma pre-filter disable, vert3tap auto, v_inter_invert field 1) PFB_CTL_2: 0x00000000 (vscale 0.000000) PFB_CTL_3: 0x00000000 (vscale initial phase 0.000000) PFB_CTL_4: 0x00000000 (hscale 0.000000) PFB_WIN_POS: 0x00000000 (0, 0) PFB_WIN_SIZE: 0x00000000 (0, 0) PCH_DREF_CONTROL: 0x00001402 (cpu source disable, ssc_source enable, nonspread_source enable, superspread_source disable, ssc4_mode downspread, ssc1 enable, ssc4 disable) PCH_RAWCLK_FREQ: 0x0000007d (FDL_TP1 timer 0.5us, FDL_TP2 timer 1.5us, freq 125) PCH_DPLL_TMR_CFG: 0x0271186a PCH_SSC4_PARMS: 0x01204860 PCH_SSC4_AUX_PARMS: 0x000029c5 PCH_DPLL_SEL: 0x00000008 (TransA DPLL enable (DPLL A), TransB DPLL disable (DPLL (null))) PCH_DPLL_ANALOG_CTL: 0x00008000 PCH_DPLL_A: 0x88046004 (enable, sdvo high speed no, mode LVDS, p2 Div 14, FPA0 P1 3, FPA1 P1 3, refclk SSC, sdvo/hdmi mul 1) PCH_DPLL_B: 0x04800080 (disable, sdvo high speed no, mode (null), p2 (null), FPA0 P1 8, FPA1 P1 8, refclk default 120Mhz, sdvo/hdmi mul 1) PCH_FPA0: 0x00021005 (n = 2, m1 = 16, m2 = 5) PCH_FPA1: 0x00021005 (n = 2, m1 = 16, m2 = 5) PCH_FPB0: 0x00030d07 (n = 3, m1 = 13, m2 = 7) PCH_FPB1: 0x00030d07 (n = 3, m1 = 13, m2 = 7) TRANS_HTOTAL_A: 0x05970555 (1366 active, 1432 total) TRANS_HBLANK_A: 0x05970555 (1366 start, 1432 end) TRANS_HSYNC_A: 0x058d0575 (1398 start, 1422 end) TRANS_VTOTAL_A: 0x032502ff (768 active, 806 total) TRANS_VBLANK_A: 0x032502ff (768 start, 806 end) TRANS_VSYNC_A: 0x03060302 (771 start, 775 end) TRANSA_DATA_M1: 0x00000000 (TU 1, val 0x0 0) TRANSA_DATA_N1: 0x00000000 (val 0x0 0) TRANSA_DATA_M2: 0x00000000 (TU 1, val 0x0 0) TRANSA_DATA_N2: 0x00000000 (val 0x0 0) TRANSA_DP_LINK_M1: 0x00000000 (val 0x0 0) TRANSA_DP_LINK_N1: 0x00000000 (val 0x0 0) TRANSA_DP_LINK_M2: 0x00000000 (val 0x0 0) TRANSA_DP_LINK_N2: 0x00000000 (val 0x0 0) TRANS_HTOTAL_B: 0x00000000 (1 active, 1 total) TRANS_HBLANK_B: 0x00000000 (1 start, 1 end) TRANS_HSYNC_B: 0x00000000 (1 start, 1 end) TRANS_VTOTAL_B: 0x00000000 (1 active, 1 total) TRANS_VBLANK_B: 0x00000000 (1 start, 1 end) TRANS_VSYNC_B: 0x00000000 (1 start, 1 end) TRANSB_DATA_M1: 0x00000000 (TU 1, val 0x0 0) TRANSB_DATA_N1: 0x00000000 (val 0x0 0) TRANSB_DATA_M2: 0x00000000 (TU 1, val 0x0 0) TRANSB_DATA_N2: 0x00000000 (val 0x0 0) TRANSB_DP_LINK_M1: 0x00000000 (val 0x0 0) TRANSB_DP_LINK_N1: 0x00000000 (val 0x0 0) TRANSB_DP_LINK_M2: 0x00000000 (val 0x0 0) TRANSB_DP_LINK_N2: 0x00000000 (val 0x0 0) TRANS_HTOTAL_C: 0x00000000 (1 active, 1 total) TRANS_HBLANK_C: 0x00000000 (1 start, 1 end) TRANS_HSYNC_C: 0x00000000 (1 start, 1 end) TRANS_VTOTAL_C: 0x00000000 (1 active, 1 total) TRANS_VBLANK_C: 0x00000000 (1 start, 1 end) TRANS_VSYNC_C: 0x00000000 (1 start, 1 end) TRANSC_DATA_M1: 0x00000000 (TU 1, val 0x0 0) TRANSC_DATA_N1: 0x00000000 (val 0x0 0) TRANSC_DATA_M2: 0x00000000 (TU 1, val 0x0 0) TRANSC_DATA_N2: 0x00000000 (val 0x0 0) TRANSC_DP_LINK_M1: 0x00000000 (val 0x0 0) TRANSC_DP_LINK_N1: 0x00000000 (val 0x0 0) TRANSC_DP_LINK_M2: 0x00000000 (val 0x0 0) TRANSC_DP_LINK_N2: 0x00000000 (val 0x0 0) TRANSACONF: 0xc0000000 (enable, active) TRANSBCONF: 0x00000000 (disable, inactive) TRANSCCONF: 0x00000000 (disable, inactive) FDI_TXA_CTL: 0xb0044000 (enable, train pattern not train, voltage swing 0.4V,pre-emphasis 0dB, port width X1, enhanced framing enable, FDI PLL enable, scrambing enable, master mode disable) FDI_TXB_CTL: 0x00040000 (disable, train pattern pattern_1, voltage swing 0.4V,pre-emphasis 0dB, port width X1, enhanced framing enable, FDI PLL disable, scrambing enable, master mode disable) FDI_TXC_CTL: 0x00000000 (disable, train pattern pattern_1, voltage swing 0.4V,pre-emphasis 0dB, port width X1, enhanced framing disable, FDI PLL disable, scrambing enable, master mode disable) FDI_RXA_CTL: 0x80022350 (enable, train pattern not train, port width X1, 6bpc,link_reverse_strap_overwrite no, dmi_link_reverse no, FDI PLL enable,FS ecc disable, FE ecc disable, FS err report enable, FE err report enable,scrambing enable, enhanced framing enable, PCDClk) FDI_RXB_CTL: 0x00000040 (disable, train pattern pattern_1, port width X1, 8bpc,link_reverse_strap_overwrite no, dmi_link_reverse no, FDI PLL disable,FS ecc disable, FE ecc disable, FS err report disable, FE err report disable,scrambing enable, enhanced framing enable, RawClk) FDI_RXC_CTL: 0x00000040 (disable, train pattern pattern_1, port width X1, 8bpc,link_reverse_strap_overwrite no, dmi_link_reverse no, FDI PLL disable,FS ecc disable, FE ecc disable, FS err report disable, FE err report disable,scrambing enable, enhanced framing enable, RawClk) FDI_RXA_MISC: 0x00000080 (FDI Delay 128) FDI_RXB_MISC: 0x00000080 (FDI Delay 128) FDI_RXC_MISC: 0x00000080 (FDI Delay 128) FDI_RXA_TUSIZE1: 0x7e000000 FDI_RXA_TUSIZE2: 0x7e000000 FDI_RXB_TUSIZE1: 0x7e000000 FDI_RXB_TUSIZE2: 0x7e000000 FDI_RXC_TUSIZE1: 0x7e000000 FDI_RXC_TUSIZE2: 0x7e000000 FDI_PLL_CTL_1: 0x7e000000 FDI_PLL_CTL_2: 0x7e000000 FDI_RXA_IIR: 0x00000000 FDI_RXA_IMR: 0x000008ff FDI_RXB_IIR: 0x00000000 FDI_RXB_IMR: 0x000008ff PCH_ADPA: 0x00f40000 (disabled, transcoder A, -hsync, -vsync) HDMIB: 0x0000001c (disabled pipe A 8bpc SDVO DVI audio disabled +vsync +hsync detected) HDMIC: 0x00000018 (disabled pipe A 8bpc SDVO DVI audio disabled +vsync +hsync non-detected) HDMID: 0x00000018 (disabled pipe A 8bpc SDVO DVI audio disabled +vsync +hsync non-detected) PCH_LVDS: 0x80300302 (enabled, pipe A, 18 bit, 1 channel) CPU_eDP_A: 0x00000018 PCH_DP_B: 0x00000004 PCH_DP_C: 0x00000000 PCH_DP_D: 0x00000000 TRANS_DP_CTL_A: 0x60000418 (disable port none 6bpc +vsync +hsync) TRANS_DP_CTL_B: 0x60000018 (disable port none 8bpc +vsync +hsync) TRANS_DP_CTL_C: 0x60000018 (disable port none 8bpc +vsync +hsync) BLC_PWM_CPU_CTL2: 0x80000000 BLC_PWM_CPU_CTL: 0x000003d0 BLC_PWM_PCH_CTL1: 0x80000000 BLC_PWM_PCH_CTL2: 0x03d003d0 PCH_PP_STATUS: 0xc0000008 (on, ready, sequencing idle) PCH_PP_CONTROL: 0xabcd0003 (blacklight disabled, power down on reset, panel on) PCH_PP_ON_DELAYS: 0x025807d0 PCH_PP_OFF_DELAYS: 0x01f407d0 PCH_PP_DIVISOR: 0x00186905 and VBIOS dump (see the guide) for display issue. echo 1 > /sys/devices/pci0000:00/0000:00:02.0/rom bash: /sys/devices/pci0000:00/0000:00:02.0/rom: Permission denied xubuntu@xubuntu:~/Desktop$ sudo echo 1 > /sys/devices/pci0000:00/0000:00:02.0/rom bash: /sys/devices/pci0000:00/0000:00:02.0/rom: Permission denied Um yeah... :D -- for GPU hang, get the last batch buffer (see the guide). N/A Additional info: This problem did not occur in a Natty Live CD environment: xserver-xorg-video-intel 2:2.14.0-4ubuntu7
I've not reproduced this using xf86-video-intel.git with either uxa or sna with and without compositing (i.e. gnome-shell and awesome as the WM) on an i5-2520m. Have you tried without compositing, I think it is called Ubuntu Classic or something like that?
Chris Wilson, thank you for following up on this. The Description data was obtained in an Xubuntu Live CD Environment: http://cdimage.ubuntu.com/xubuntu/releases/12.04/alpha-2/ I am not terribly familiar with compositing, which OS has which backend, etc. However, the problem was not reproducible in a Ubuntu 11.04 Live CD Environment (link is long gone as it's all Live DVD now :( ). I think 11.04 uses Metacity with compositing disabled by default?! I've CC'ed Bryce Harrington on this bug so please correct me if I'm mistaken.
I'm a bit wary of comparing 12.04 with 11.04 since virtually every component changed between the two and so it is difficult to judge which single change triggers the bug. There used to be an option on the login screen to select between window managers (and so choose composited/non-composited desktop), hopefully Bryce can tell you where that option is now found.
In 12.04, install 'gnome-panel', which will add the "Classic Gnome (no effects)" option. Boot into that and it'll give you a metacity window manager environment without compositing. You can verify that metacity compositing is off as so: $ gconftool-2 -g '/apps/metacity/general/compositing_manager' false
Not reproducible using gnome-panel Classic Gnome (no effects).
To follow up on https://bugs.freedesktop.org/show_bug.cgi?id=46544#c5 , given this is still reproducible in Trusty 64-bit, would this indicate a bug in xfwm4 (the default Xubuntu window manager), LibreOffice, or is this still considered a intel driver bug? As per https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1317043 the phenomenon is reproducible with disparate hardware (nvidia in their case).
Doesn't appear to be a ddx bug after all.
Chris Wilson, so if it's not a ddx bug, where would you say the bug is in?
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