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Old 06-18-2016, 02:26 PM   #1
Registered: Sep 2015
Posts: 495

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Mystery, screen goes black, leaves gnome menu items only

Running 16.04 Ubuntu with gnome desktop, x1650 video card.
Randomly the browser or any apps just disappear to black. Put mouse to upper left corner, now invisible apps shrink and edged with blue lines. Apps remain black. Black as black can be, nothing visible.

To fix, I log out and log in.
While logging out app windows appear then proceeds to log in screen.
This is happening every few days, sometiomes multiple times a day, it is very annoying.
I see this occur while running google chrome.
Old 06-19-2016, 08:27 AM   #2
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Registered: Nov 2004
Location: Saint Amant, Acadiana
Distribution: Gentoo ~arch
Posts: 7,231

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You can go to
in Chrome, you may get some ideas what's wrong.
Old 06-21-2016, 08:52 AM   #3
Registered: Sep 2015
Posts: 495

Original Poster
Rep: Reputation: Disabled
I took a picture of the black screen. If I start a terminal, only the top bar is visible.
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Old 06-21-2016, 08:54 AM   #4
Registered: Sep 2015
Posts: 495

Original Poster
Rep: Reputation: Disabled
Does show one error at bottom of list

Graphics Feature Status
Canvas: Software only, hardware acceleration unavailable
Flash: Hardware accelerated
Flash Stage3D: Hardware accelerated
Flash Stage3D Baseline profile: Hardware accelerated
Compositing: Hardware accelerated
Multiple Raster Threads: Disabled
Native GpuMemoryBuffers: Software only. Hardware acceleration disabled
Rasterization: Software only. Hardware acceleration disabled
Video Decode: Software only, hardware acceleration unavailable
Video Encode: Hardware accelerated
WebGL: Hardware accelerated
Driver Bug Workarounds
Problems Detected
Accelerated 2d canvas is unstable in Linux at the moment
Disabled Features: accelerated_2d_canvas
Accelerated video decode is unavailable on Linux: 137247
Disabled Features: accelerated_video_decode
Clear uniforms before first program use on all platforms: 124764, 349137
Applied Workarounds: clear_uniforms_before_first_program_use
Mesa drivers in Linux handle varyings without static use incorrectly: 333885
Applied Workarounds: count_all_in_varyings_packing
Linux AMD drivers incorrectly return initial value of 1 for TEXTURE_MAX_ANISOTROPY: 348237
Applied Workarounds: init_texture_max_anisotropy
Disable partial swaps on linux drivers: 339493
Applied Workarounds: disable_post_sub_buffers_for_onscreen_surfaces
Always rewrite vec/mat constructors to be consistent: 398694
Applied Workarounds: scalarize_vec_and_mat_constructor_args
Linux AMD drivers handle struct scopes incorrectly: 403957
Applied Workarounds: regenerate_struct_names
Linux ATI drivers crash on binding incomplete cube map texture to FBO: 518889
Applied Workarounds: force_cube_map_positive_x_allocation
Accelerated rasterization has been disabled, either via about:flags or command line.
Disabled Features: rasterization
Raster is using a single thread.
Disabled Features: multiple_raster_threads
Native GpuMemoryBuffers have been disabled, either via about:flags or command line.
Disabled Features: native_gpu_memory_buffers
Version Information
Data exported	6/21/2016, 8:52:49 AM
Chrome version	Chrome/51.0.2704.103
Operating system	Linux 4.4.0-24-generic
Software rendering list version	10.18
Driver bug list version	8.66
ANGLE commit id	1a1b30c37e13
2D graphics backend	Skia
Command Line Args	--window-depth=24 --flag-switches-begin --flag-switches-end
Driver Information
Initialization time	118
In-process GPU	false
Sandboxed	false
GPU0	VENDOR = 0x1002, DEVICE= 0x71c1
Optimus	false
AMD switchable	false
Driver vendor	Mesa
Driver version	11.2.0
Driver date	
Pixel shader version	1.20
Vertex shader version	1.20
Max. MSAA samples	6
Machine model name	
Machine model version	
GL_VENDOR	X.Org R300 Project
GL_RENDERER	Gallium 0.4 on ATI RV530
GL_VERSION	2.1 Mesa 11.2.0
GL_EXTENSIONS	GL_ARB_multisample GL_EXT_abgr GL_EXT_bgra GL_EXT_blend_color 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_multitexture GL_IBM_multimode_draw_arrays GL_IBM_texture_mirrored_repeat 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_S3_s3tc GL_SUN_multi_draw_arrays GL_ARB_texture_border_clamp GL_ARB_texture_compression GL_EXT_framebuffer_object GL_EXT_texture_compression_s3tc GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_MESA_window_pos GL_NV_packed_depth_stencil GL_NV_texture_rectangle 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_EXT_stencil_two_side GL_EXT_texture_cube_map GL_NV_fog_distance 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_ATI_texture_float GL_EXT_shadow_funcs GL_EXT_stencil_wrap GL_MESA_pack_invert GL_MESA_ycbcr_texture GL_ARB_fragment_program_shadow GL_ARB_half_float_pixel GL_ARB_occlusion_query2 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_float GL_ARB_texture_rectangle GL_ATI_texture_compression_3dc GL_EXT_pixel_buffer_object GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_rgtc GL_EXT_texture_mirror_clamp 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_ARB_vertex_array_object GL_ATI_separate_stencil GL_ATI_texture_mirror_once GL_EXT_gpu_program_parameters GL_EXT_texture_compression_latc GL_EXT_texture_sRGB_decode GL_OES_EGL_image GL_ARB_copy_buffer GL_ARB_half_float_vertex GL_ARB_instanced_arrays GL_ARB_map_buffer_range GL_ARB_texture_rg GL_ARB_texture_swizzle GL_ARB_vertex_array_bgra GL_EXT_texture_swizzle GL_EXT_vertex_array_bgra GL_NV_conditional_render GL_ARB_ES2_compatibility GL_ARB_debug_output 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_shader_texture_lod GL_EXT_provoking_vertex GL_EXT_texture_snorm GL_MESA_texture_signed_rgba GL_NV_texture_barrier GL_ARB_get_program_binary GL_ARB_robustness GL_ARB_separate_shader_objects GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ARB_compressed_texture_pixel_storage GL_ARB_internalformat_query GL_ARB_map_buffer_alignment GL_ARB_texture_storage GL_EXT_framebuffer_multisample_blit_scaled GL_AMD_shader_trinary_minmax GL_ARB_clear_buffer_object GL_ARB_explicit_uniform_location GL_ARB_invalidate_subdata GL_ARB_program_interface_query GL_ARB_vertex_attrib_binding GL_KHR_debug GL_ARB_buffer_storage GL_ARB_multi_bind GL_ARB_texture_mirror_clamp_to_edge GL_ARB_clip_control GL_ARB_get_texture_sub_image GL_ARB_texture_barrier GL_KHR_context_flush_control
Disabled Extensions	
Window system binding vendor	SGI
Window system binding version	1.4
Window system binding extensions	GLX_ARB_create_context GLX_ARB_create_context_profile GLX_ARB_fbconfig_float GLX_ARB_framebuffer_sRGB GLX_ARB_multisample GLX_EXT_create_context_es_profile GLX_EXT_create_context_es2_profile GLX_EXT_fbconfig_packed_float GLX_EXT_framebuffer_sRGB 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_swap_control GLX_SGIS_multisample GLX_SGIX_fbconfig GLX_SGIX_pbuffer GLX_SGIX_visual_select_group GLX_INTEL_swap_event
Window manager	GNOME Shell
Compositing manager	Yes
Direct rendering	Yes
Reset notification strategy	0x8261
GPU process crash count	0
Compositor Information
Tile Update Mode	One-copy
Partial Raster	Enabled
GpuMemoryBuffers Status
ATC	Software only
ATCIA	Software only
DXT1	Software only
DXT5	Software only
ETC1	Software only
R_8	Software only
RGBA_4444	Software only
RGBX_8888	Software only
RGBA_8888	Software only
BGRX_8888	Software only
BGRA_8888	Software only
YUV_420	Software only
YUV_420_BIPLANAR	Software only
UYVY_422	Software only
Log Messages
[28625:28625:0621/] : InitializeSandbox() called with multiple threads in process gpu-process
Old 06-22-2016, 06:20 AM   #5
Registered: Apr 2007
Location: West Virginia
Distribution: Linux Mint
Posts: 862

Rep: Reputation: 246Reputation: 246Reputation: 246
Which driver are you using for the graphics card?

Some ideas are here also.
Old 06-24-2016, 10:29 AM   #6
Registered: Sep 2015
Posts: 495

Original Poster
Rep: Reputation: Disabled
What ever ships with Ubuntu.
The video card is an older PCIE AMD card, x1650, so then using the free radeon driver.

It quit twice this am, so I switched to Firefox. So far no crashes.

The card may be 'fully supported', according to them, but it has this bug, maybe with Chrome, and researching it, that error I see as listed, others have the same troubles.

[28625:28625:0621/] : InitializeSandbox() called with multiple threads in process gpu-process
If I had an Nvidia card, then this bug wont be happening.

Last edited by sdowney717; 06-24-2016 at 10:34 AM.
Old 06-24-2016, 10:46 AM   #7
Registered: Sep 2015
Posts: 495

Original Poster
Rep: Reputation: Disabled
scott@scott-P5QC:~$ dmesg | egrep 'drm|radeon'
[    1.666222] [drm] Initialized drm 1.1.0 20060810
[    1.704575] [drm] radeon kernel modesetting enabled.
[    1.714377] fb: switching to radeondrmfb from VESA VGA
[    1.714913] [drm] initializing kernel modesetting (RV530 0x1002:0x71C1 0x18BC:0x3100).
[    1.714925] [drm] register mmio base: 0xFADE0000
[    1.714926] [drm] register mmio size: 65536
[    1.715016] [drm] Generation 2 PCI interface, using max accessible memory
[    1.715021] radeon 0000:01:00.0: VRAM: 256M 0x0000000000000000 - 0x000000000FFFFFFF (256M used)
[    1.715023] radeon 0000:01:00.0: GTT: 512M 0x0000000010000000 - 0x000000002FFFFFFF
[    1.715043] [drm] Detected VRAM RAM=256M, BAR=256M
[    1.715044] [drm] RAM width 128bits DDR
[    1.715238] [drm] radeon: 256M of VRAM memory ready
[    1.715239] [drm] radeon: 512M of GTT memory ready.
[    1.715252] [drm] GART: num cpu pages 131072, num gpu pages 131072
[    1.721481] [drm] radeon: 1 quad pipes, 2 z pipes initialized.
[    1.722126] [drm] PCIE GART of 512M enabled (table at 0x0000000000040000).
[    1.722160] radeon 0000:01:00.0: WB enabled
[    1.722163] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000010000000 and cpu addr 0xffff880221f1f000
[    1.722166] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    1.722167] [drm] Driver supports precise vblank timestamp query.
[    1.722169] radeon 0000:01:00.0: radeon: MSI limited to 32-bit
[    1.722200] radeon 0000:01:00.0: radeon: using MSI.
[    1.722222] [drm] radeon: irq initialized.
[    1.722232] [drm] Loading R500 Microcode
[    1.722614] [drm] radeon: ring at 0x0000000010001000
[    1.722644] [drm] ring test succeeded in 8 usecs
[    1.723089] [drm] ib test succeeded in 0 usecs
[    1.726879] [drm] Radeon Display Connectors
[    1.726881] [drm] Connector 0:
[    1.726882] [drm]   DVI-I-1
[    1.726883] [drm]   HPD1
[    1.726885] [drm]   DDC: 0x7e40 0x7e40 0x7e44 0x7e44 0x7e48 0x7e48 0x7e4c 0x7e4c
[    1.726886] [drm]   Encoders:
[    1.726887] [drm]     CRT1: INTERNAL_KLDSCP_DAC1
[    1.726888] [drm]     DFP1: INTERNAL_KLDSCP_TMDS1
[    1.726889] [drm] Connector 1:
[    1.726890] [drm]   SVIDEO-1
[    1.726891] [drm]   Encoders:
[    1.726892] [drm]     TV1: INTERNAL_KLDSCP_DAC2
[    1.726893] [drm] Connector 2:
[    1.726894] [drm]   VGA-1
[    1.726896] [drm]   DDC: 0x7e50 0x7e50 0x7e54 0x7e54 0x7e58 0x7e58 0x7e5c 0x7e5c
[    1.726897] [drm]   Encoders:
[    1.726898] [drm]     CRT2: INTERNAL_KLDSCP_DAC2
[    1.809540] [drm] fb mappable at 0xD00C0000
[    1.809543] [drm] vram apper at 0xD0000000
[    1.809544] [drm] size 7258112
[    1.809545] [drm] fb depth is 24
[    1.809546] [drm]    pitch is 6912
[    1.809623] fbcon: radeondrmfb (fb0) is primary device
[    1.809736] radeon 0000:01:00.0: fb0: radeondrmfb frame buffer device
[    1.820021] [drm] Initialized radeon 2.43.0 20080528 for 0000:01:00.0 on minor 0
Old 06-26-2016, 09:45 AM   #8
Registered: Sep 2015
Posts: 495

Original Poster
Rep: Reputation: Disabled
Been 2 days on Firefox and no black turning screens, So its a chrome browser thing this bug. The bug does something to affect the entire video system of the OS.

When it happens even my desktop screen background turn black, leaving only the gnome menu items visible.

Last edited by sdowney717; 06-26-2016 at 09:47 AM.
Old 06-30-2016, 10:09 AM   #9
Registered: Sep 2015
Posts: 495

Original Poster
Rep: Reputation: Disabled
Firefox does not crash my computer like Chrome. Still been working fine.
Old 07-16-2016, 05:09 PM   #10
Registered: Sep 2015
Posts: 495

Original Poster
Rep: Reputation: Disabled
Updating, Chrome has stopped crashing. All sorts of updates have come by, so maybe they fixed it or inadvertently without their intention it is working.


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