SUMMARY help windows causing crash of RKWard STEPS TO REPRODUCE 1. open RKWard 2. create new or open existing R-document 3. press F1 to open welcome page (or F2 for command help page) 4. switch to document tab (sometimes you have to switch back and forth twice or more) OBSERVED RESULT RKWard crashes. EXPECTED RESULT RKWard works normal. SOFTWARE/OS VERSIONS RKWard: 0.7.2 Linux: Lubuntu 20.04 (LXQT) Qt Version: 5.12.8
content of .xsession-errors after crash: (0x7ffe7dffe210) Debug: execAction "/usr/share/applications/org.kde.rkward.desktop" Hspell: can't open /usr/share/hspell/hebrew.wgz.sizes. rkward: ../nouveau/pushbuf.c:723: nouveau_pushbuf_data: Zusicherung »kref« nicht erfüllt.
Hi! No problem, here. Do you get any further backtrace information? (Try installing "drkonqi", if you don't have it). The last line of the .xsession-errors seems to point towards your graphics driver. You could try checking whether that line actually gets generated close to the crash, tough (the other lines will pop up during startup). Are these packages from our launchpad PPA, or how did you install?
The nouveau graphics driver is obviously to blame. I installed the proprietary NVIDIA driver, and the bug no longer occurs.
Thanks. I will close this ticket, here, then. It is a bug, but I don't think we can address it from here. I suggest you report it against the nouveau driver in your distribution, instead (https://phab.lubuntu.me/w/bugs/). Some bits that you may want to include in your ticket: - RKWard (the help window) uses QtWebEngine. I assume the problem is an interaction between that and the nouveau driver. - Again, installing drkonqi might give you a backtrace to attach to your report.