This occurs reproducibly right after visiting a file (in a new
buffer, i.e. find-file-other-frame) - see the first screenshot. At
the same time, the slider occurs in the right position up on the
scrollbar. The situation persists until the relevant portion of the
window is redrawn. (The build is using toolkit scrollbars.)
It looks like as if the slider was drawn at a wrong position and
drawn again later on.
Both problems (the one above and the one below) also occur after I
start out with the buffer loaded and with rather plain frame
parameters (fixed with Monaco font) and switch to Lucida14.
It also occurs when switching back to Monaco, and the frame is
redrawn with the larger width.
It also occurs reliably when I resize the frame in fundamental-mode.
My build settings are:
-DUSE_TOOLKIT_SCROLL_BARS -DUSE_TRANSPARENCY -DUSE_ATSUI -DSYNC_INPUT
Various fontsets are loaded.
I haven't been able to determine which configuration makes the bug
appear. I'm happy to try out things, but I'd need some ideas about
where to start!
Btw, where in the code is the horizontal position of the slider defined?
I would like to move it to the right boundary where it is in all my
other applications.
N.B., the height of the frame is not an exact multiple of the line
height, even when resizing the frame (see second screenshot). This
might be considered a separate bug, if it is a bug and not intended -
I don't know if this has to do with the strange slider position.
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