I get similarly broken behaviour using Unity8 on nouveau:
nouveau: kernel rejected pushbuf: Device or resource busy
And worse messages appear in the dmesg kernel log. So nouveau is very broken.
Nothing new there.
I do find it works better using Xmir -sw. Both geany and firefox start
and are visible. However resizing the root window is indeed very buggy
with "random pixels". Those random pixels are not specific to nouveau
though as you get the same issue with intel graphics.
So you've actually found three separate bugs here and we need to break this one
up:
* Confirmed: nouveau is very unstable, freezes the screen and hangs the
system.
* Confirmed: resizing the root window in Xmir is very buggy -> bug 1417541
* Unconfirmed: black window (my system usually hangs completely instead)
** Changed in: mir
Status: New => Invalid
** Changed in: mir (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1499425
Title:
[nouveau] xmir black window (mesa 11.0.0) and/or freezing and kernel
errors
Status in Mir:
Invalid
Status in mir package in Ubuntu:
Invalid
Status in xorg-server package in Ubuntu:
Confirmed
Bug description:
wily/unity8/mir
i'm trying to run some x11 apps on unity8/mir but i get a black
window, the window size looks right, tested with geany, firefox, etc
(windows size is diff depending on the app). tried every Xmir arg no
luck
i don't see any warnings or error messages
glamor EGL version: 1.4 (DRI2)
glamor EGL extensions: EGL_EXT_buffer_age EGL_EXT_image_dma_buf_import
EGL_KHR_create_context EGL_KHR_get_all_proc_addresses
EGL_KHR_gl_renderbuffer_image EGL_KHR_gl_texture_2D_image
EGL_KHR_gl_texture_cubemap_image EGL_KHR_image EGL_KHR_image_base
EGL_KHR_image_pixmap EGL_KHR_surfaceless_context EGL_MESA_configless_context
EGL_MESA_drm_image EGL_MESA_image_dma_buf_export EGL_WL_bind_wayland_display :
glamor GL version: 3.0 Mesa 11.0.0
glamor 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_framebuffer_sRGB GL_ARB_multitexture
GL_EXT_framebuffer_sRGB 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_blen
d_square GL_NV_light_max_e
glamor GLSL version: 1.30
[DRI2] Setup complete
[DRI2] DRI driver: nouveau
[DRI2] VDPAU driver: nouveau
Resize requested to 1008x728
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