Hey all, I came across this thread recently https://www.reddit.com/r/krita/comments/9xea9b/this_is_gonna_sound_crazy_but_is_krita/ , where someone reports that having Krita open was causing their wifi connection to regularly drop out.
Long story short, it looks like this is caused by default network scanning behaviour in the Qt library, so in theory QGIS should also be affected by this. The typical symptom is that network ping latencies will jump every 10 seconds while a Qt app is running. I personally couldn't reproduce this, but the issue seems so widespread (google for "QT_BEARER_POLL_TIMEOUT") that I'd be surprised if QGIS wasn't affected too. So my questions are: 1. Has anyone noticed this? 2. Should we just go ahead and apply the workaround which other Qt applications are doing and set the environment variable QT_BEARER_POLL_TIMEOUT=-1 by default? The side effect of this change is that Qt's network polling would be completely disabled, so e.g. changing from wifi to wireless while a QGIS session is open could result in that session being unable to connect to the network (requiring a QGIS restart) Nyall _______________________________________________ QGIS-Developer mailing list [email protected] List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
