[konsole] [Bug 373232] Horizontal lines with fractional HiDPI scaling

[Ruth Ivimey-Cook]

https://bugs.kde.org/show_bug.cgi?id=373232

--- Comment #216 from Ruth Ivimey-Cook <ruth at ivimey.org> ---
On 16/08/2020 13:16, Christoph Cullmann wrote:
> https://bugs.kde.org/show_bug.cgi?id=373232
>
> --- Comment #215 from Christoph Cullmann <cullmann at kde.org> ---
> I still think is:
>
> https://bugreports.qt.io/browse/QTBUG-78963
>
> See for more details
>
> https://cullmann.io/posts/kde-qt-highdpi-scaling/
>
> I traced down the paint stuff, too, and think we paint the "right" rectangles
> but that is then afterwards not properly "clipped".
>
> If you can provide them with some way to reproduce, that would be nice, I did
> fail.
>

Well it's not too hard to demonstrate that at least some of the QRects 
are correct with my debug patches.

I find vim is quite good at reliably producing and erasing extraneous 
lines, so I'll give it a go.

Ruth

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