I didn't know the method using software-properties-gtk (Additional Drivers tab). When I search in google I don't see any useful reference to this, so maybe it is not very aware for other users.
As you mention, I run this command after apt commands without restart. Restarting solves the problem. But maybe could be useful add a couple of lines to glxinfo source code detecting previously if calling to xcb_glx_query_server_string_string_length() has a X server enabled or need a restart. So you can get this output for example: $ glxinfo Could not run the program. A X server restart is required. This is huge useful for the user and avoid related crashes or duplicates that will spend QA time (IMHO). -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to mesa-demos in Ubuntu. https://bugs.launchpad.net/bugs/1055236 Title: glxinfo crashed with SIGSEGV in xcb_glx_query_server_string_string_length() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa-demos/+bug/1055236/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
