[bug #67996] Octave should use fractional scaling for Qt plots on Wayland

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Follow-up Comment #12, bug #67996 (group octave):

I am having an issue that has been suggested may be related to this bug and I
am posting this as has been requested here:
https://octave.discourse.group/t/is-octave-plotting-working-with-wayland/7270/77?u=imsickofusernames

When using Fedora 43 KDE/Wayland when I plot() anything in Octave 11.0.92 the
actual figure/axes in the resulting plot() window is incorrectly positioned
with the figure being too large and the top and right side of the figure being
cut off.  The entire figure is there and I can zoom out and pan the figure
within the plot() window but if I click the "fit to window" button (magnifying
glass with "1" in it on the toolbar) the figure returns to incorret
size/position issue as described above.

This does not happen in Fedora 43/KDE/X11.  The figure is correctly plotted()
under X11.

There are two monitors connected to this system but one of them is disabled in
"Display Configuration".  Both are 4K and set to 3840x2160(16:9) in "Display
Configuration".  Both have "Global scale" set to 125%.  The connected monitor
is via DisplayPort and the disabled monitor via HDMI.  This system uses an
Nvidia RTX 5070 TI and Nvidia proprietary drivers.




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