Ar an seachtú lá déag de mí Iúil, scríobh Raymond Toy:
I've had minor redisplay issues for a very long time where
when I C-v parts of the old line are displayed instead of the
new. This was fairly rare.
Yes, I’ve seen similar issures. Usually the trailing half or third of the line
above, displayed left-justified above the line that should be displayed.
However, in the last couple of months, this has become much
worse. C-v around a large file ends up with incorrect lines being
displayed. I haven't really changed anything on my end, but I have
updated xemacs to the most recent code along with various updates to
I’m surprised at that.
The code I added changing to extents rather than markers for the window point
cache may, possibly, remotely, have something to do with this. Ben didn’t seem
to have got feedback on the window point code when he wrote it and it wasn’t
that exhaustively documented (though getting on to a decade and a half of
testing with few bugs does imply it’s decent code.)
Haven't come up with a repeatable test case and perhaps it's
to my fonts or syntax highlighting. But whatever, it's much worse
than before and is now causing me to mis-edit somethings because what
I see isn't what is actually there. Pressing C-l usually fixes this,
 I reported this before, but on startup the window is big and I
change my font in my xemacs to BitStream Vera Sans. The window
shrinks in size. I click on the window and it suddenly gets wider
but not everything is wider. XEmacs still thinks the window is
not that wide. When I manually drag the right window edge,
everything is resized correctly and things are working with the
correct window size now.
Yes, that’s well-known too. Workaround is usually to use your ~/.Xdefaults
rather than ~/.xemacs/init.el to specify the font.
 Sometimes if I wait a bit, xemacs will redraw parts of the
with the correct lines.
‘Liston operated so fast that he once accidentally amputated an assistant’s
fingers along with a patient’s leg, […] The patient and the assistant both
died of sepsis, and a spectator reportedly died of shock, resulting in the
only known procedure with a 300% mortality.’ (Atul Gawande, NEJM, 2012)
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