On Tue, May 24, 2016 at 01:03:28AM +0100, Guillaume Munch wrote: > Le 24/05/2016 00:06, Scott Kostyshak a écrit : > > On Mon, May 23, 2016 at 11:51:11PM +0100, Guillaume Munch wrote: > > > Le 23/05/2016 23:12, Scott Kostyshak a écrit : > > > > On Wed, May 11, 2016 at 10:36:13AM -0700, Pavel Sanda wrote: > > > > > Pavel Sanda wrote: > > > > > > commit 518876b370ac00f4ee5840a65d40c1d79d0ed2ad > > > > > > Author: Pavel Sanda <sa...@lyx.org> > > > > > > Date: Wed May 11 10:31:59 2016 -0700 > > > > > > > > > > > > * lib/RELEASE-NOTES > > > > > > > > > > It would be nice if someone involved in numerous dicussions about > > > > > various bugs under different Qt 5.x versions wrote summary > > > > > paragraph... > > > > > > > > We have the following in RELEASE-NOTES: > > > > > > > > * LyX 2.2.0 and the following 2.2.x releases will continue to work well > > > > with > > > > Qt 4.5 (and later Qt 4.x) but will also support Qt 5.6, which > > > > brings some > > > > advantages most notably for users with HiDPI displays. Note that if > > > > you > > > > compile LyX with a Qt 5 release before 5.6 you are likely to run > > > > into > > > > several regressions with respect to Qt 4.x. See #9215 for a list of > > > > bugs > > > > related to compiling LyX with different versions of Qt. > > > > > > > > I think it is sufficient. The nice thing is that we can add more > > > > information to #9215 after release if we want since we reference it. > > > > > > > > > > Do you know any other bug on Linux+qt5.5.1 than > > > http://www.lyx.org/trac/ticket/9731 ? > > > > Not offhand but I'm sure there are some that I cannot remember. I might > > look through our bugs with "qtbug" keyword and improve #9215. > > > > > Because on the other hand with qt4 there is the critical > > > http://www.lyx.org/trac/ticket/9362. I also noticed that lyx is very slow > > > with qt4 now, with profiling showing that most of the time is spent in > > > QTextLine::setLineWidth() below GuiFontMetrics::breakAt(). In fact I find > > > it > > > more annoying than #9731, so much that I switched to 5.5.1. > > > > Is the above with 4.8.6? Is there a chance that 4.8.7 has improved > > something? > > I noticed this starting with 4.8.7.
Dang. Good to know. Scott > > > I wonder whether > > > LyX 2.2 should not be built with qt >= 5.5.1 on Linux when possible. > > > > > For these reasons as well, I am hoping that for 2.3 the community of LyX > > > developers will choose to focus on qt >= 5.6. > > > > +1 > > > > Note that Ubuntu 16.04 shipped Qt 5.5.1 and that will be around for a > > while. It would be nice to test our LyX with that Qt version as well. > > Yes, one can expect feedback from this version as well.
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