SUMMARY May be related to 413361 and/or 412817. STEPS TO REPRODUCE 1. Have Meta+Shift+PrtScn set as global hotkey for capturing a rectangular region with Spectacle. 2. Press Meta+Shift+PrtScn. 3. Do not select a region. Instead, press Meta+Shift+PrtScn again quickly. I.e., press the shortcut twice in rapid succession without doing anything else in between. OBSERVED RESULT KDE is frozen. I can select a region, but I can't get out of rectangle selection mode. Enter does nothing, nor does Esc, Ctrl+Alt+Backspace, Ctrl+Alt+Del or anything. EXPECTED RESULT I should be able to exit rectangle selection mode using Enter, Esc or a global shortcut. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Kubuntu 18.04, 64-bit KDE Plasma Version: 5.12.9 KDE Frameworks Version: 5.44.0 Qt Version: 5.9.5 ADDITIONAL INFORMATION I believe the same thing happens if any application (perhaps any WINDOWED application) starts up while Spectacle is in rectangle selection mode. I have a number of applications that start up after login, but with a delay. If I launch Spectacle before all my applications have launched, there is a high risk of running into this crash bug.
Cannot reproduce with Spectacle 19.12.2. The version you're using is two years old. :/ Please attach the backtrace for the crash. See https://community.kde.org/Get_Involved/Issue_Reporting#Crash_reports_must_include_backtraces
Do you want a backtrace from version 17.12.3 or from version 19.*?
If you are able to update, bug reports for newer versions are preferred.
I upgraded to Kubuntu 19.10 which has Spectacle 19.04.3. The problem no longer reproduces. I am not going to go through the hassle of producing a backtrace on the older version. Feel free to close this ticket.
Thanks for the info!