<![CDATA[Opera Freezes after ERROR:protocol-handler.cc message]]>My Opera into Mint XFCE (Running on VirtualBox over Windows 10) and into Ubuntu 19.04 (Native install) is getting frozen after few seconds

$ opera
[31927:31927:0201/085725.209342:ERROR:sandbox_linux.cc(379)] InitializeSandbox() called with multiple threads in process gpu-process.

[31927:31927:0201/085729.276453:ERROR:gles2_cmd_decoder_autogen.h(1606)] [.WebGL-0x398cdd836500]GL ERROR :GL_INVALID_ENUM : glGetIntegerv: pname was GL_MAX_SAMPLES_ANGLE

[31901:31908:0201/085730.262133:ERROR:ticl-message-validator.cc(212)] registration_digest must be non-empty

[31901:31908:0201/085730.262177:ERROR:ticl-message-validator.cc(319)] field registration_summary failed validation in { protocol_version: { version: { major_version: 3 minor_version: 2  }  } client_token: "i6CfoK7/FmwCGOTr37x66A==" registration_summary: { num_registrations: 0 registration_digest: ""  } server_time_ms: 0  }

[31901:31908:0201/085730.262208:ERROR:ticl-message-validator.cc(361)] field header failed validation in { header: { protocol_version: { version: { major_version: 3 minor_version: 2  }  } client_token: "i6CfoK7/FmwCGOTr37x66A==" registration_summary: { num_registrations: 0 registration_digest: ""  } server_time_ms: 0  }  }

[31901:31908:0201/085730.262236:ERROR:protocol-handler.cc(145)] Received invalid message: { header: { protocol_version: { version: { major_version: 3 minor_version: 2  }  } client_token: "i6CfoK7/FmwCGOTr37x66A==" registration_summary: { num_registrations: 0 registration_digest: ""  } server_time_ms: 0  }  }

Any reason for this to happen or exist something that I can do to prevent/fix it??My Opera into Mint XFCE (Running on VirtualBox over Windows 10) and into Ubuntu 19.04 (Native install) is getting frozen after few seconds

$ opera
[31927:31927:0201/085725.209342:ERROR:sandbox_linux.cc(379)] InitializeSandbox() called with multiple threads in process gpu-process.

[31927:31927:0201/085729.276453:ERROR:gles2_cmd_decoder_autogen.h(1606)] [.WebGL-0x398cdd836500]GL ERROR :GL_INVALID_ENUM : glGetIntegerv: pname was GL_MAX_SAMPLES_ANGLE

[31901:31908:0201/085730.262133:ERROR:ticl-message-validator.cc(212)] registration_digest must be non-empty

[31901:31908:0201/085730.262177:ERROR:ticl-message-validator.cc(319)] field registration_summary failed validation in { protocol_version: { version: { major_version: 3 minor_version: 2  }  } client_token: "i6CfoK7/FmwCGOTr37x66A==" registration_summary: { num_registrations: 0 registration_digest: ""  } server_time_ms: 0  }

[31901:31908:0201/085730.262208:ERROR:ticl-message-validator.cc(361)] field header failed validation in { header: { protocol_version: { version: { major_version: 3 minor_version: 2  }  } client_token: "i6CfoK7/FmwCGOTr37x66A==" registration_summary: { num_registrations: 0 registration_digest: ""  } server_time_ms: 0  }  }

[31901:31908:0201/085730.262236:ERROR:protocol-handler.cc(145)] Received invalid message: { header: { protocol_version: { version: { major_version: 3 minor_version: 2  }  } client_token: "i6CfoK7/FmwCGOTr37x66A==" registration_summary: { num_registrations: 0 registration_digest: ""  } server_time_ms: 0  }  }

Any reason for this to happen or exist something that I can do to prevent/fix it??

]]>https://forums.opera.com/topic/38085/opera-freezes-after-error-protocol-handler-cc-messageRSS for NodeFri, 15 May 2026 05:43:25 GMTSat, 01 Feb 2020 13:59:30 GMT60<![CDATA[Reply to Opera Freezes after ERROR:protocol-handler.cc message on Sun, 02 Feb 2020 02:21:00 GMT]]>Hi @helciomacedo,

Firstly, you may try to clean your profile, as this fixes similar issue here, or simply run the Opera with fresh profile, to test if this avoid the freeze: /usr/bin/opera --user-data-dir=/home/yourusername/opera-fresh.

If the above doesn't help, run the Opera with the switch as follows: /usr/bin/opera --disable-gpu, and see if this helps.

Alternatively, though not so recommended (mainly for security reasons), you can try to launch it with another switch: /usr/bin/opera --disable-gpu-sandbox.

You can also try to launch the Opera with this switch: /usr/bin/opera --use-angle=default, which will attempt to use several ANGLE renderers, until one successfully initializes. However, since the Opera already freezes, it most probably already tried all modes, and this will rather don't help.

]]>https://forums.opera.com/post/197757https://forums.opera.com/post/197757Sun, 02 Feb 2020 02:21:00 GMT