High DPI Scaling in Linux
Of all the platforms supported by BBC BASIC for SDL 2.0, Linux is the one I'm least familiar with. I've received a query about its behaviour on a Linux system with a high-resolution monitor, which I can't answer.
In Windows and MacOS, BBCSDL is highly dependent on High DPI Scaling, which makes the screen appear, to the application, to have a 96 dots-per-inch resolution even if the native display resolution is much higher. This is enabled by default.
I'm relying on the same thing happening in Linux, and a web search confirms that High DPI Scaling is supported, even if in not such an accomplished way as in MacOS and Windows.
But from his description I don't think any High DPI Scaling is active. How can he enable it?
In Windows and MacOS, BBCSDL is highly dependent on High DPI Scaling, which makes the screen appear, to the application, to have a 96 dots-per-inch resolution even if the native display resolution is much higher. This is enabled by default.
I'm relying on the same thing happening in Linux, and a web search confirms that High DPI Scaling is supported, even if in not such an accomplished way as in MacOS and Windows.
But from his description I don't think any High DPI Scaling is active. How can he enable it?
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This page gives some detailed instructions - it seems to be quite involved.
https://www.malibal.com/guides/how-to-change-hidpi-scaling-on-linux/0 -
They're having a laugh! The whole point of High DPI Scaling is that it should be the default behaviour, so that programs which are not high-DPI-aware 'just run'. That's what happens in Windows and MacOS.This page gives some detailed instructions - it seems to be quite involved.
Linux seems to take the alternative view that the default should be for the application to handle high-DPI displays itself, but that isn't always feasible - and certainly not when there is a conflicting requirement to maintain compatibility with legacy systems, such as with BBC BASIC.
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