https://bugs.kde.org/show_bug.cgi?id=360541

Boudewijn Rempt <b...@valdyas.org> changed:

           What    |Removed                     |Added
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     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |CONFIRMED

--- Comment #5 from Boudewijn Rempt <b...@valdyas.org> ---
So,

* with opengl off, the canvas is scaled to 200%
* with opengl on, the canvas is scaled correctly, but since qt does the
scaling, the result is blurry
* for chris, turning opengl off makes painting smoother
* for ramskulls, turning opengl on makes painting smoother

I only have an SP3 to test on, and I don't observe a problem when painting with
either opengl on or off, but the hidpi support does seem to be broken. 

http://doc.qt.io/qt-5/highdpi.html has information on playing with scaling
approaches runtime, but I guess I should make the option to enable hidpi
scaling automatically optional. Ideally, we'd let Qt handle scaling everything
except for our canvas.

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