today I builded all KF5 packages (in Archlinux) from git and when I login my session all seems fine and only crash, once when scrolling in applications menu, anotherone when choice a program, another closing kontact, each time is different, but after crash the desktop doesn't response anymore and I need make Alt-Crtl-BackSp to have login screen. I have a Radeon GPU HD7970 with opensource drivers (git version) and I tested with GLX 3.x and 2.x versions and with the same result. the message in dmesg command is: [ 3655.271585] kactivitymanage[1459]: segfault at 7f8501f81b08 ip 00007f850c3de34d sp 00007fff24a2e7d8 error 4 in libQt5Core.so.5.3.0[7f850c118000+4c1000] [ 4805.624992] kactivitymanage[13143]: segfault at 7f8257141b08 ip 00007f826159e34d sp 00007fffde7be288 error 4 in libQt5Core.so.5.3.0[7f82612d8000+4c1000] [ 5006.032323] kactivitymanage[13950]: segfault at 7f7e5d75a9c8 ip 00007f7e67bb634d sp 00007fffa664d078 error 4 in libQt5Core.so.5.3.0[7f7e678f0000+4c1000] [ 5232.008598] kactivitymanage[14797]: segfault at 7f20463d1b08 ip 00007f205082e34d sp 00007fffb153c8a8 error 4 in libQt5Core.so.5.3.0[7f2050568000+4c1000] [ 6473.017824] kactivitymanage[15483]: segfault at 7fa687789b08 ip 00007fa691be634d sp 00007fff6f296268 error 4 in libQt5Core.so.5.3.0[7fa691920000+4c1000] Reproducible: Always Steps to Reproduce: 1.login KF5 session 2.work normally 3.crash ramdomly each time I tried login again and again in KF5 session Actual Results: desktop crash without response after that Expected Results: don't desktop crash or to have desktop restarted again automatically (after error message) using Archlinux x64 kernel 3.15, GCC 4.9, cmake 3.0, opensource drivers ATI with Radeon GPU (git version) and mesa-git.
to be useful it needs a complete backtrace
(In reply to comment #1) > to be useful it needs a complete backtrace yes, I'm agree but how can I give a complete backtrace ? I don't have the classical "bug" window with all these options, I only have a black screen with mouse cursor and desktop freeze :( I need to start KF5 with another argument to take more information about it? thanks
No info in 3 months. Closing
This isn't resolved. I have the exact same issue (a year later), running on Intel graphics. How is a user like me supposed to know what "to be useful it needs a complete backtrace" means, or how to provide that info? Of course there will be "No info in 3 months" because I have no idea how to provide that, unless advised.