I'm having the same problem on an up to date 15.10. Only I cannot log back in because there's no display manager present. I can switch to a virtual console and there it works. But when I get back to Console #7 the display goes into power saving mode. The only trace from the crash is in dmesg:
kactivitymanage[1629]: segfault at 18 ip 00007f4cf6438e90 sp 00007ffead511e28 error 4 in libqxcb.so[7f4cf640a000+b5000] krunner[2159]: segfault at 18 ip 00007f3523ebede8 sp 00007ffeb62663c0 error 4 in libqxcb.so[7f3523e75000+b5000] kwin_x11[2164]: segfault at 18 ip 00007f6e63b14de8 sp 00007fff87859850 error 4 in libqxcb.so[7f6e63acb000+b5000] plasmashell[2167]: segfault at 18 ip 00007f192ad04de8 sp 00007ffc222dd470 error 4 in libqxcb.so[7f192acbb000+b5000] klauncher[2176]: segfault at 18 ip 00007fb52e3abde8 sp 00007ffda395b150 error 4 in libqxcb.so[7fb52e362000+b5000] Over DVI it works fine - I can switch my display off and on again without problems. I have a Z87 MB with Pentium G3258 using the integrated graphics of the CPU. -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kubuntu-meta in Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when turning powering on display port monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1492778/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
