On Friday, May 09, 2014 16:03:31 Martin Gräßlin wrote: > On Friday 09 May 2014 15:56:53 Sebastian Kügler wrote: > > > > Since 30d2489930 in plasma-workspace, we're setting the QSG_RENDER_LOOP to > > "basic", if it's not specified otherwise by an env var. This has been done > > to prevent crashes in the threaded renderer, but unfortunately, it seems > > to > > come with its own set of problems: Plasma produces artifacts, high CPU > > load > > and grinds to a complete halt after a while. > > > > > > > > I've tried setting the QSG_RENDER_LOOP to threaded, and that does indeed > > prevent those problems, but obviously, plasma-shell is more crashy with > > it. > > Now some of those crashes (at least one I've observed) is indeed in the > > scenegraph, but I've also seen other crashes (one in groupmanager of the > > taskbar, indirectly, not sure if that's related). > > > > > > > > I think we might need to revisit this patch, and find a "stable" way > > forward. Just switching to basic renderloop doesn't seem to be the > > solution. :/ > > Please note that Qt itself switched it off for all of Mesa. The change now > was more to only have one possible way of usage and preventing us hunting > down non-reproducable bugs. > > The crashes we see with threaded render loop cannot be fixed or worked > around if I understand the Qt commit disabling it for all of Mesa > correctly. Have a look at the plasma-devel archives, I sent a FYI mail some > time back.
I remember that one. That email doesn't say much, except for your "basic works for me" in kwin. I didn't see any problems with kwin, only with plasma-shell, and I only changed it for plasma-shell in my tests: that made a difference (on Intel). Cheers, -- sebas http://www.kde.org | http://vizZzion.org | GPG Key ID: 9119 0EF9 _______________________________________________ Plasma-devel mailing list Plasma-devel@kde.org https://mail.kde.org/mailman/listinfo/plasma-devel
