[Bug 1745259] Re: light-locker crashed with signal 5
It appears what's going on (in my observed case, at least) is that the xfce4 package depends on xfce4-session, which pulls in light-locker as a Recommends, which in turn pulls in lightdm as a dependency. And when Xfce searches for a screen locker to use, it seems to discover light- locker first and tries to use it, which fails if lightdm is not in use. light-locker then signals the SIGTRAP “crash” (from the light-locker source code, this appears to be an intentional as a means of signaling that an error occurred). So, the workaround appears to be either to use lightdm as the display manager instead, or to manually configure Xfce to use a different screen locker, or to manually remove the light-locker package and install, for instance, xfce4-screensaver (which is not installed by default from the xfce4 or xfce4-goodies metapackages) so that Xfce finds and uses it instead. Then, upon restarting Xfce, screen locking appears to work properly. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1745259 Title: light-locker crashed with signal 5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/light-locker/+bug/1745259/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1745259] Re: light-locker crashed with signal 5
After installing the xfce4 packages in Ubuntu 20.04 and starting a xfce4 session from the default bootup login screen, I immediately get a similar crash notification. If I launch light-locker from a terminal, I get the following output: $ light-locker ** (light-locker:26216): ERROR **: 19:33:17.519: Environment variable XDG_SESSION_PATH not set. Is LightDM running? zsh: trace trap (core dumped) light-locker -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1745259 Title: light-locker crashed with signal 5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/light-locker/+bug/1745259/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1745259] Re: light-locker crashed with signal 5
** Tags added: groovy -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1745259 Title: light-locker crashed with signal 5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/light-locker/+bug/1745259/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1745259] Re: light-locker crashed with signal 5
** Tags added: focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1745259 Title: light-locker crashed with signal 5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/light-locker/+bug/1745259/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1745259] Re: light-locker crashed with signal 5
I see this error when i xrdp to my ubuntnu server 18.04 after i have installed lubuntu-desktop over it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1745259 Title: light-locker crashed with signal 5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/light-locker/+bug/1745259/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1745259] Re: light-locker crashed with signal 5
I have automatic lock disabled in power manager, yet light-locker crashes with SIGTRAP (5) (Trace/breakpoint trap) when I resume from sleep. Why does it use the breakpoint signal? That should be reserved for the debugger to use. Why is it running when I have requested no locking of the session? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1745259 Title: light-locker crashed with signal 5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/light-locker/+bug/1745259/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1745259] Re: light-locker crashed with signal 5
** Tags added: eoan -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1745259 Title: light-locker crashed with signal 5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/light-locker/+bug/1745259/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1745259] Re: light-locker crashed with signal 5
** Information type changed from Private to Public -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1745259 Title: light-locker crashed with signal 5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/light-locker/+bug/1745259/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
