When try to open an picture it open main window, and the freeze. Please see the bug: https://bugs.kde.org/show_bug.cgi?id=312196 Reproducible: Always
Did you change the Qt graphics system? (eselect qtgraphicssystem list)
Yes. I tried. Probably my problem is not associated with that particular upstream bug. As gwenvie starts, but it takes 130 seconds. After that time it works as previous versions. On kde-4.9.4 this problem doesn't occured. So it seems that it is something new. I tried to delect gwenview config, and nothing changed. Today I will try to run it on clean kde config (with cleared home directory). And will report if it helped.
Sorry, I should have clarified - did you change the Qt graphics system *from the default*? Are you able to try this patch[1] that upstream committed for KDE/4.10? [1]: https://projects.kde.org/projects/kde/kdegraphics/gwenview/repository/revisions/6f17587683b801c09c137f063ee3c89fb11f291d/diff/lib/documentview/documentviewcontainer.cpp?format=diff
I created new home, and after new login, gwenview works normally. It seems, that after update from 4.9.4 to 4.9.5 something changed somewhere, and that lead into the problem.
OK. I found the reason. If I open pictures from nfs drive, or from other network resource, the address ot that resource will be saved in recen pictures list. For some reason during start gwenview looks into all destinations saved in recent list. When destination is not accessible during the check, it locks out, and wait until timeout. So, as temporary solution, I made a script that clear all recent picture lists from gwenview folder. Since that I have no problems more.
