https://bugs.documentfoundation.org/show_bug.cgi?id=153306

--- Comment #31 from Patrick Luby (volunteer) <guibomac...@gmail.com> ---
(In reply to bintoro from comment #27)
> When using the external display, the horizontal point in which the artifacts
> appear has in the nightly build moved so far to the right that the trails
> won’t show up until the zoom level is increased. But for some reason, this
> improvement hasn’t carried over to the internal display.
> 
> Also, please see attachment 190367 [details] (posted in a duplicate bug)
> exhibiting partial cursor trails to the left of the horizontal cutoff point.
> This only happened with certain fonts, but right now I’m unable to reproduce
> it at all. Anyway, perhaps some of this can provide clues as to what’s going
> on.

I can now reproduce this bug with the latest LibreOffice code using the
document in comment #2 if I set the document zoom to 350% or more. Then, I need
to right arrow to the least few letters in a line to see the bug:

https://bugs.documentfoundation.org/attachment.cgi?id=193712

Since Skia/Raster is fine, maybe Skia/Metal (and maybe Skia/Vulkan on Windows?)
is mishandling upscaling? Not sure how we would debug this though.

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