On Jan 3, 2012, at 1:36 PM, Stephan Witt wrote: > Am 03.01.2012 um 17:15 schrieb Olivier Ripoll: > >> On 03.01.2012 16:31, Pavel Sanda wrote: >>> Olivier Ripoll wrote: >>>> I reported the very same sysmptoms a few weeks ago but until now it seems I >>>> was the only person to see it, although I could see it on 2 machines >>>> (different OS versions of windows, different CPU different graphic cards). >>>> So I am somehow glad it's happening to you (sorry). >>> >>> ticket number? we have similar reports in trac, but very difficult to >>> reproduce >>> in other systems. >>> >>> are you able to compile lyx on your own? there were done some fixes for >>> slowness >>> in recent trunk (targeted on X11 but it may help here as well, cf >>> http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg171540.html ). >>> >>> pavel >>> >> >> Hi, >> >> Check my 2 messages in the "LyX 2.0.2 Released" thread, one dated december >> 5th (user mailing lists, perhaps devel too) and the other one dated december >> 16th (devel ML), which contains more details: >> >> http://www.mail-archive.com/lyx-users@lists.lyx.org/msg90218.html >> http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg172462.html > > Hi, > > I'm almost sure it depends on Qt-Version. > > With LyX on Mac with Qt4 we have two fundamental problems: > 1. Qt4 with Carbon crashes when interacting with some desktop tools like > Divvy or SizeUp > http://www.lyx.org/trac/ticket/7365 and > http://www.lyx.org/trac/ticket/7519 > > 2. Qt4 with Cocoa is painting text with kerning hints > This doesn't match with the drawing engine of LyX and LyX's cursor movement. > See the discussion here: > http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg169152.html > > I've build 2.0.2 on Mac with Qt4.7 where Cocoa is the default to avoid (1). > The drawback is we have to deal with (2) - the current solution is to draw > text just char by char, > the text fragments are only one character long. > > To check if this is the culprit one may add the following line to your > preferences file: > \force_paint_single_char false > On a Mac this is the file "~/Library/Application Support/LyX-2.0/preferences". > (Broken cursor placement for long lines should be one consequence.)
I've added the line that you suggest and the scrolling is improved--much like or exactly like 2.0.1 scrolling that I commented on earlier in this thread. And I see no problem with an incorrectly placed cursor. Jerry > > Stephan
