Hi.Since yesterday,when I launch Dota 2 I get a black screen and I can't do anything.Sound is working fine.When I run Dota from a terminal I get this:

oli@oli:~$ steam
Running Steam on ubuntu 13.10 32-bit
STEAM_RUNTIME is enabled automatically
Installing breakpad exception handler for appid(steam)/version(1390852599_client)
Installing breakpad exception handler for appid(steam)/version(1390852599_client)
unlinked 0 orphaned pipes
Gtk-Message: Failed to load module "overlay-scrollbar"
Gtk-Message: Failed to load module "unity-gtk-module"
Installing breakpad exception handler for appid(steam)/version(1390852599_client)
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element
Fontconfig warning: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 78: saw unknown, expected number
[0216/122349:WARNING:proxy_service.cc(958)] PAC support disabled because there is no system implementation
Installing breakpad exception handler for appid(steam)/version(1390852599_client)
Installing breakpad exception handler for appid(steam)/version(1390852599_client)
Installing breakpad exception handler for appid(steam)/version(1390852599_client)
Installing breakpad exception handler for appid(steam)/version(1390852599_client)
Installing breakpad exception handler for appid(steam)/version(1390852599_client)
Installing breakpad exception handler for appid(steam)/version(1390852599_client)
Generating new string page texture 2: 48x256, total string texture memory is 49,15 KB
Generating new string page texture 3: 256x256, total string texture memory is 311,30 KB
Installing breakpad exception handler for appid(steam)/version(1390852599_client)
Installing breakpad exception handler for appid(steam)/version(1390852599_client)
Generating new string page texture 5: 128x256, total string texture memory is 442,37 KB
Generating new string page texture 6: 32x256, total string texture memory is 475,14 KB
Generating new string page texture 7: 384x256, total string texture memory is 868,35 KB
Generating new string page texture 12: 64x256, total string texture memory is 933,89 KB
Focused window is now 1, 0
Adding license for package 0
Adding license for package 7
Adding license for package 16222
Adding license for package 17250
Adding license for package 36144
Adding license for package 38716
Adding license for package 38717
roaming config store loaded successfully - 797 bytes.
migrating temporary roaming config store
ExecCommandLine: "/home/oli/.local/share/Steam/ubuntu12_32/steam"
System startup time: 64,19 seconds
OnFocusWindowChanged to window type: k_EWindowTypeSteamDesktop, 0
Generating new string page texture 79: 128x256, total string texture memory is 131,07 KB
Generating new string page texture 80: 256x256, total string texture memory is 1,20 MB
Running Steam on ubuntu 13.10 32-bit
STEAM_RUNTIME has been set by the user to: /home/oli/.local/share/Steam/ubuntu12_32/steam-runtime
Installing breakpad exception handler for appid(steam)/version(1390852599_client)
Generating new string page texture 84: 512x256, total string texture memory is 1,72 MB
ExecCommandLine: "/home/oli/.steam/root/ubuntu12_32/steam steam://open/driverhelperready"
ExecSteamURL: "steam://open/driverhelperready"
Generating new string page texture 90: 128x256, total string texture memory is 1,85 MB
Generating new string page texture 95: 128x256, total string texture memory is 1,98 MB
Focused window is now 0, 0
OnFocusWindowChanged to window type: k_EWindowTypeNonSteamDesktop, 0
Focused window is now 1, 0
OnFocusWindowChanged to window type: k_EWindowTypeSteamDesktop, 0
Focused window is now 0, 0
OnFocusWindowChanged to window type: k_EWindowTypeNonSteamDesktop, 0
Focused window is now 1, 0
OnFocusWindowChanged to window type: k_EWindowTypeSteamDesktop, 0
Game update: AppID 570 "Dota 2", ProcID 5178, IP 0.0.0.0:0
ERROR: ld.so: object '/home/oli/.local/share/Steam/ubuntu12_64/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded: ignored.
CGameStreamThread: Added instance ID 5178 for appid 570
CGameStreamThread: Set render instance ID 5178 for appid 570
ERROR: ld.so: object '/home/oli/.local/share/Steam/ubuntu12_64/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded: ignored.
pid 5181 != 5180, skipping destruction (fork without exec?)
ERROR: ld.so: object '/home/oli/.local/share/Steam/ubuntu12_64/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded: ignored.
CGameStreamThread: Added instance ID 5179 for appid 570
ERROR: ld.so: object '/home/oli/.local/share/Steam/ubuntu12_64/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded: ignored.
CGameStreamThread: Added instance ID 5180 for appid 570
CGameStreamThread: Added instance ID 5182 for appid 570
CGameStreamThread: Added instance ID 5183 for appid 570
CGameStreamThread: Set render instance ID 5183 for appid 570
Installing breakpad exception handler for appid(gameoverlayui)/version(20140125134503_client)
Installing breakpad exception handler for appid(gameoverlayui)/version(1.0_client)
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element
Fontconfig warning: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 78: saw unknown, expected number
Installing breakpad exception handler for appid(gameoverlayui)/version(1.0_client)
Gtk-Message: Failed to load module "overlay-scrollbar"
Gtk-Message: Failed to load module "unity-gtk-module"
[0216/122558:WARNING:proxy_service.cc(958)] PAC support disabled because there is no system implementation
Installing breakpad exception handler for appid(gameoverlayui)/version(1.0_client)
Using breakpad crash handler
Setting breakpad minidump AppID = 570
Forcing breakpad minidump interfaces to load
Looking up breakpad interfaces from steamclient
Calling BreakpadMiniDumpSystemInit
Looking up breakpad interfaces from steamclient
Calling BreakpadMiniDumpSystemInit
Steam_SetMinidumpSteamID:  Caching Steam ID:  76561198094001353 [API loaded yes]
Steam_SetMinidumpSteamID:  Setting Steam ID:  76561198094001353
SDL video target is 'x11'
SDL failed to create GL compatibility profile (whichProfile=0!
This system supports the OpenGL extension GL_EXT_framebuffer_object.
This system supports the OpenGL extension GL_EXT_framebuffer_blit.
This system DOES NOT support the OpenGL extension GL_EXT_framebuffer_multisample.
This system DOES NOT support the OpenGL extension GL_APPLE_fence.
This system DOES NOT support the OpenGL extension GL_NV_fence.
This system supports the OpenGL extension GL_ARB_sync.
This system supports the OpenGL extension GL_EXT_draw_buffers2.
This system DOES NOT support the OpenGL extension GL_EXT_bindable_uniform.
This system DOES NOT support the OpenGL extension GL_APPLE_flush_buffer_range.
This system supports the OpenGL extension GL_ARB_map_buffer_range.
This system supports the OpenGL extension GL_ARB_vertex_buffer_object.
This system supports the OpenGL extension GL_ARB_occlusion_query.
This system DOES NOT support the OpenGL extension GL_APPLE_texture_range.
This system DOES NOT support the OpenGL extension GL_APPLE_client_storage.
This system DOES NOT support the OpenGL extension GL_ARB_uniform_buffer.
This system supports the OpenGL extension GL_ARB_vertex_array_bgra.
This system supports the OpenGL extension GL_EXT_vertex_array_bgra.
This system supports the OpenGL extension GL_ARB_framebuffer_object.
This system DOES NOT support the OpenGL extension GL_GREMEDY_string_marker.
This system supports the OpenGL extension GL_ARB_debug_output.
This system DOES NOT support the OpenGL extension GL_EXT_direct_state_access.
This system DOES NOT support the OpenGL extension GL_NV_bindless_texture.
This system DOES NOT support the OpenGL extension GL_AMD_pinned_memory.
This system DOES NOT support the OpenGL extension GL_EXT_framebuffer_multisample_blit_scaled.
This system supports the OpenGL extension GL_EXT_texture_sRGB_decode.
This system DOES NOT support the OpenGL extension GL_NVX_gpu_memory_info.
This system DOES NOT support the OpenGL extension GL_ATI_meminfo.
This system supports the OpenGL extension GL_EXT_texture_compression_s3tc.
This system supports the OpenGL extension GL_EXT_texture_compression_dxt1.
This system supports the OpenGL extension GL_ANGLE_texture_compression_dxt3.
This system supports the OpenGL extension GL_ANGLE_texture_compression_dxt5.
This system DOES NOT support the OpenGL extension GLX_EXT_swap_control_tear.
GL_NV_bindless_texture: DISABLED
GL_AMD_pinned_memory: DISABLED
GL_EXT_texture_sRGB_decode: AVAILABLE
GL_NVX_gpu_memory_info: UNAVAILABLE
GL_ATI_meminfo: UNAVAILABLE
GL_MAX_SAMPLES_EXT: 0
Adding VPK file: /home/oli/.local/share/Steam/SteamApps/common/dota 2 beta/dota/sound_vo_english
Adding VPK file: /home/oli/.local/share/Steam/SteamApps/common/dota 2 beta/dota/pak01
Adding VPK file: /home/oli/.local/share/Steam/SteamApps/common/dota 2 beta/platform/pak01
Did not detect any valid joysticks.
WARNING: unable to link Test_StartScript and Test_StartScript because one or more is a ConCommand.
WARNING: unable to link Test_RandomChance and Test_RandomChance because one or more is a ConCommand.
WARNING: unable to link Test_LoopForNumSeconds and Test_LoopForNumSeconds because one or more is a ConCommand.
WARNING: unable to link Test_Loop and Test_Loop because one or more is a ConCommand.
WARNING: unable to link Test_LoopCount and Test_LoopCount because one or more is a ConCommand.
WARNING: unable to link Test_StartLoop and Test_StartLoop because one or more is a ConCommand.
WARNING: unable to link log_flags and log_flags because one or more is a ConCommand.
WARNING: unable to link log_color and log_color because one or more is a ConCommand.
WARNING: unable to link log_verbosity and log_verbosity because one or more is a ConCommand.
WARNING: unable to link log_level and log_level because one or more is a ConCommand.
WARNING: unable to link log_dumpchannels and log_dumpchannels because one or more is a ConCommand.
Load a scaleform font provider?
Creating D3D9 device with D3DCREATE_MULTITHREADED
IDirect3DDevice9::Create: BackBufWidth: 1280, BackBufHeight: 800, D3DFMT: 3, BackBufCount: 1, MuFocused window is now 0, 0
OnFocusWindowChanged to window type: k_EWindowTypeNonSteamDesktop, 0
Mesa 10.2.0-devel implementation error: meta program compile failed:
0:6(12): error: value of type vec3 cannot be assigned to variable of type vec4
 
source:
attribute vec2 position;
attribute vec3 textureCoords;
varying vec4 texCoords;
void main()
{
   texCoords = textureCoords;
   gl_Position = vec4(position, 0.0, 1.0);
}
 
 
Please report at https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa
ltisampleType: 0, MultisampleQuality: 0
GL sampler object usage: DISABLED
 
 ##### swap interval = 1     swap limit = 1 #####
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element
Fontconfig warning: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 78: saw unknown, expected number
Focused window is now 3, 570
OnFocusWindowChanged to window type: k_EWindowTypeGame, 570
Gtk-Message: Failed to load module "overlay-scrollbar"
Gtk-Message: Failed to load module "unity-gtk-module"
[0216/122729:WARNING:proxy_service.cc(958)] PAC support disabled because there is no system implementation
Focused window is now 0, 0
OnFocusWindowChanged to window type: k_EWindowTypeNonSteamDesktop, 0
^[[B^[[BPrecache: Took 58737 ms, Vertex 435, Pixel 6694
ConVarRef dota_fow_disable doesn't point to an existing ConVar
CClientSteamContext logged on = 0
Could not get IReplayDirector interface from library serverGame.dll loaded for "Dota 2"
*** ConVar "script_break_in_native_debugger_on_error" was not unregistered! Shutdown crash imminent!
Game removed: AppID 570 "Dota 2", ProcID 5183 

What can I do to fix this?Thank you