<![CDATA[Opera start failing in v31 and crash in v33]]>I used Opera 29 & 30 versions without problems. Issues started in v31. All stable versions.
Here the konsole messages:

-V31
[0103/202713:ERROR:sandbox_linux.cc(345)] InitializeSandbox() called with multiple threads in process gpu-process

---Still Usable---

-V32
[0103/205522:ERROR:session_manager_impl.cc(355)] Not implemented reached in virtual void opera::SessionManagerImpl::ResumeSessionSaving()
[0103/205524:ERROR:sandbox_linux.cc(345)] InitializeSandbox() called with multiple threads in process gpu-process

---Usable,but visual glitches---

-V33
[0103/211021:ERROR:migration_assistant.cc(87)] Could not open file: bookmarks.adr
[0103/211021:ERROR:migration_assistant.cc(87)] Could not open file: cookies4.dat
[0103/211021:ERROR:migration_assistant.cc(87)] Could not open file: download.dat
[0103/211021:ERROR:migration_assistant.cc(87)] Could not open file: global_history.dat
[0103/211021:ERROR:migration_assistant.cc(87)] Could not open file: sessions/autosave.win
[0103/211021:ERROR:migration_assistant.cc(87)] Could not open file: speeddial.ini
[0103/211021:ERROR:migration_assistant.cc(87)] Could not open file: wand.dat
[0103/211021:ERROR:migration_assistant.cc(87)] Could not open file: operaprefs.ini
[0103/211021:ERROR:migration_assistant.cc(87)] Could not open file: typed_history.xml
[0103/211021:ERROR:migration_assistant.cc(87)] Could not open file: vlink4.dat
[0103/211021:ERROR:extensions_importer.cc(58)] Reading widgets.dat failed
[0103/211022:ERROR:sandbox_linux.cc(338)] InitializeSandbox() called with multiple threads in process gpu-process
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
[0103/211032:ERROR:channel.cc(307)] RawChannel read error (connection broken)
[0103/211033:ERROR:sandbox_linux.cc(338)] InitializeSandbox() called with multiple threads in process gpu-process
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
[0103/211041:ERROR:channel.cc(307)] RawChannel read error (connection broken)
[0103/211045:ERROR:sandbox_linux.cc(338)] InitializeSandbox() called with multiple threads in process gpu-process
[0103/211058:ERROR:sandbox_linux.cc(338)] InitializeSandbox() called with multiple threads in process gpu-process

---It doesn't open---

I'm using lastest Chromium version without any issue

]]>https://forums.opera.com/topic/13319/opera-start-failing-in-v31-and-crash-in-v33RSS for NodeWed, 15 Jul 2026 14:38:07 GMTSun, 03 Jan 2016 20:16:14 GMT60<![CDATA[Reply to Opera start failing in v31 and crash in v33 on Sat, 06 Feb 2016 01:02:02 GMT]]>Solved in opera-developer 36.0.2129.0-1

]]>https://forums.opera.com/post/93028https://forums.opera.com/post/93028Sat, 06 Feb 2016 01:02:02 GMT<![CDATA[Reply to Opera start failing in v31 and crash in v33 on Thu, 28 Jan 2016 09:09:45 GMT]]>It doesn't works
I think is a problem with radeon graphics and lastest kernel versions.
Any place to upload some crash logs?

Thanks again for your help

]]>https://forums.opera.com/post/92420https://forums.opera.com/post/92420Thu, 28 Jan 2016 09:09:45 GMT<![CDATA[Reply to Opera start failing in v31 and crash in v33 on Thu, 28 Jan 2016 06:29:37 GMT]]>Opera accepts most of the same switches as Chromium, so ... best option from this list appears to be

--disable-gpu
]]>https://forums.opera.com/post/92416https://forums.opera.com/post/92416Thu, 28 Jan 2016 06:29:37 GMT<![CDATA[Reply to Opera start failing in v31 and crash in v33 on Wed, 27 Jan 2016 20:45:45 GMT]]>I want to try something.
How can i open opera in terminal disabling hardware acceleration?

]]>https://forums.opera.com/post/92408https://forums.opera.com/post/92408Wed, 27 Jan 2016 20:45:45 GMT<![CDATA[Reply to Opera start failing in v31 and crash in v33 on Sun, 24 Jan 2016 18:33:08 GMT]]>Opera 34. Opensuse Gnome. Chromium 47 working perfectly

LaunchProcess: failed to execvp:
LaunchProcess: failed to execvp:
LaunchProcess: failed to execvp:
LaunchProcess: failed to execvp:
LaunchProcess: failed to execvp:
[0124/173732:ERROR:sandbox_linux.cc(338)] InitializeSandbox() called with multiple threads in process gpu-process
Instrucción ilegal (`core' generado)
[0124/173734:ERROR:browser_main_loop.cc(203)] Running without the SUID sandbox.
LaunchProcess: failed to execvp:
LaunchProcess: failed to execvp:
LaunchProcess: failed to execvp:
LaunchProcess: failed to execvp:
LaunchProcess: failed to execvp:
[0124/173736:ERROR:sandbox_linux.cc(338)] InitializeSandbox() called with multiple threads in process gpu-process
Fontconfig error: Cannot load default config file
LaunchProcess: failed to execvp:
[0124/173739:ERROR:browser_main_loop.cc(203)] Running without the SUID sandbox.
LaunchProcess: failed to execvp:
LaunchProcess: failed to execvp:
LaunchProcess: failed to execvp:
LaunchProcess: failed to execvp:
LaunchProcess: failed to execvp:
[0124/173741:ERROR:sandbox_linux.cc(338)] InitializeSandbox() called with multiple threads in process gpu-process
[0124/173744:ERROR:browser_main_loop.cc(203)] Running without the SUID sandbox.
[0124/173746:ERROR:process_singleton_posix.cc(194)] read() failed: Conexión reinicializada por la máquina remota
LaunchProcess: failed to execvp:
LaunchProcess: failed to execvp:
LaunchProcess: failed to execvp:
LaunchProcess: failed to execvp:
LaunchProcess: failed to execvp:
Fontconfig error: Cannot load default config file
LaunchProcess: failed to execvp:
[0124/173748:ERROR:sandbox_linux.cc(338)] InitializeSandbox() called with multiple threads in process gpu-process
[0124/173748:ERROR:CONSOLE(473)] "Uncaught TypeError: Cannot read property '__jstcache' of null", source:

]]>https://forums.opera.com/post/92193https://forums.opera.com/post/92193Sun, 24 Jan 2016 18:33:08 GMT<![CDATA[Reply to Opera start failing in v31 and crash in v33 on Tue, 05 Jan 2016 19:34:45 GMT]]>Thanks for your help
It happens in Arch an Deb distros. It happens in KDE, Gnome, Cinnamon....
And with version 34:
[0105/203146:ERROR:sandbox_linux.cc(338)] InitializeSandbox() called with multiple threads in process gpu-process
[0105/203154:ERROR:sandbox_linux.cc(338)] InitializeSandbox() called with multiple threads in process gpu-process
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
[0105/203204:ERROR:sandbox_linux.cc(338)] InitializeSandbox() called with multiple threads in process gpu-process
[0105/203217:ERROR:sandbox_linux.cc(338)] InitializeSandbox() called with multiple threads in process gpu-process

]]>https://forums.opera.com/post/91166https://forums.opera.com/post/91166Tue, 05 Jan 2016 19:34:45 GMT<![CDATA[Reply to Opera start failing in v31 and crash in v33 on Mon, 04 Jan 2016 05:13:19 GMT]]>All the "migration_assistant.cc" stuff at the start is irrelevant - that's for importing your old O12 profile.

What version of Linux? From the reference to "konsole" I presume this is a KDE destop, but otherwise can't guess.

As the current version is 34, have you tried that yet?

]]>https://forums.opera.com/post/91082https://forums.opera.com/post/91082Mon, 04 Jan 2016 05:13:19 GMT