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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Steam games not launching."
   href="https://bugs.freedesktop.org/show_bug.cgi?id=74508#c3">Comment # 3</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Steam games not launching."
   href="https://bugs.freedesktop.org/show_bug.cgi?id=74508">bug 74508</a>
              from <span class="vcard"><a class="email" href="mailto:olimpiu.lucian@gmail.com" title="celletus <olimpiu.lucian@gmail.com>"> <span class="fn">celletus</span></a>
</span></b>
        <pre>
(In reply to <a href="show_bug.cgi?id=74508#c2">comment #2</a>)
<span class="quote">> You might try:

> 1. Close Steam
> 2. Open a terminal, and run:

>    export MESA_GLSL_VERSION_OVERRIDE=130
>    steam &

> 3. Launch your game.</span >

I get the same error as in the screenshot and this in the console:
oli@oli:~$  export MESA_GLSL_VERSION_OVERRIDE=130
oli@oli:~$    steam &
[1] 14849
oli@oli:~$ 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
[0204/185926: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)
Generating new string page texture 2: 48x256, total string texture memory is
49,15 KB
Installing breakpad exception handler for
appid(steam)/version(1390852599_client)
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)
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
roaming config store loaded successfully - 797 bytes.
migrating temporary roaming config store
Installing breakpad exception handler for
appid(steam)/version(1390852599_client)
ExecCommandLine: "/home/oli/.local/share/Steam/ubuntu12_32/steam"
System startup time: 8,37 seconds
OnFocusWindowChanged to window type: k_EWindowTypeSteamDesktop, 0
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
Generating new string page texture 71: 128x256, total string texture memory is
442,37 KB
Generating new string page texture 72: 128x256, total string texture memory is
131,07 KB
Generating new string page texture 73: 64x256, total string texture memory is
507,90 KB
Generating new string page texture 74: 32x256, total string texture memory is
540,67 KB
ExecCommandLine: "/home/oli/.steam/root/ubuntu12_32/steam
steam://open/driverhelperready"
ExecSteamURL: "steam://open/driverhelperready"
Generating new string page texture 99: 128x256, total string texture memory is
671,74 KB
Generating new string page texture 100: 128x256, total string texture memory is
802,82 KB
Installing breakpad exception handler for
appid(steam)/version(1390852599_client)
Generating new string page texture 120: 512x256, total string texture memory is
1,33 MB
Installing breakpad exception handler for
appid(steam)/version(1390852599_client)
Game update: AppID 570 "Dota 2", ProcID 15093, IP 0.0.0.0:0
CGameStreamThread: Added instance ID 15093 for appid 570
CGameStreamThread: Set render instance ID 15093 for appid 570
SDL_GL_LoadLibrary(NULL) failed: Failed loading libGL.so.1:
/usr/lib/i386-linux-gnu/libxcb-dri3.so.0: undefined symbol: xcb_send_fd
(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.
Focused window is now 0, 0
OnFocusWindowChanged to window type: k_EWindowTypeNonSteamDesktop, 0
SDL_GL_LoadLibrary(NULL) failed: Failed loading libGL.so.1:
/usr/lib/i386-linux-gnu/libxcb-dri3.so.0: undefined symbol: xcb_send_fdFocused
window is now 1, 0
OnFocusWindowChanged to window type: k_EWindowTypeSteamDesktop, 0
Game removed: AppID 570 "Dota 2", ProcID 15093 

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.

(steam:14968): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that
doesn't believe we're it's parent.
Focused window is now 0, 0
OnFocusWindowChanged to window type: k_EWindowTypeNonSteamDesktop, 0</pre>
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