https://bugs.kde.org/show_bug.cgi?id=470628
Bug ID: 470628
Summary: Unable to configure screen size and position
Classification: Plasma
Product: kwin
Version: 5.27.5
Platform: unspecified
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: nw9165-jjnfov5...@yahoo.com
Target Milestone: ---
Hi,
On KDE Plasma 5.27.5 on Linux (both with Wayland and X), when going to "System
Settings -> Display and Monitor -> Display Configuration", there is no setting
to adjust the screen size and position. Only the resolution can be adjusted.
To elaborate:
When using a monitor with a size of 48 inches and a native resolution of
3840x2160 pixels for example, selecting a resolution of 1920x1080 in KDE Plasma
for example, will result in the monitor upscaling the 1920x1080 image to it's
full 3840x2160 pixels, meaning the screen size will still be 100% (48 inches).
That in itself is not a problem. And it is the correct default behavior for
most use-cases.
However:
An option should be added which allows to display the image as is, i.e. without
scaling.
When enabling that option, the 1920x1080 image would be displayed pixel by
pixel and centered on the 3840x2160 "canvas", i.e. would only take up a quarter
of the monitor's size, i.e. would result in a 24 inch picture.
In this case, KDE Plasma would still send a 3840x2160 signal to the monitor,
but would only draw 1920x1080 pixels.
This would allow to use large TVs as computer monitors at a shorter viewing
distance.
Such an option already exists in the Intel/AMD/NVIDIA graphics control panels
on MS Windows.
Additionally, an option should be added which allows to change the position of
the pixel by pixel image, so that the image can be moved around freely, instead
of limiting it to a centered position.
This would allow to move the image up and down (and left and right) and
essentially would allow to perform height adjustments on monitors/TVs which do
not have a height adjustable stand.
Submitting this into the "kwin" queue. If it needs to be moved to a different
queue, please feel free to move it to the appropriate queue.
Regards
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