Pivot monitor support on driver level?

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Pivot monitor support on driver level?

Postby amifrog » Sun Aug 06, 2017 9:56 pm

I've asked this in another forum already but this might be the right spot to suggest a feature i would like to see in AOS4:

The support of pivot monitors.

That is when you turn a monitor to 90° or 270° and the screenmode handling software should recognize this, maybe after a reboot but optimaly of course onthefly.

I realize this is not easily done with a different width and height resolution swap but with a different way how the driver 'paint' the display contens.

What are your thoughts about this?

https://en.wikipedia.org/wiki/Page_orientation#Modern_display_rotation_methods

Edit
I've learned that the orientation of input/output of mouse coords x&y also has to be swapped. Input.device and stuff....
Last edited by amifrog on Wed Aug 09, 2017 2:11 am, edited 3 times in total.
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Re: Pivot monitor support on driver level?

Postby tonyw » Mon Aug 07, 2017 1:34 am

How can the driver know the orientation of the display? Does the DDC data stream include an indicator from a built-in accelerometer?
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Re: Pivot monitor support on driver level?

Postby amifrog » Wed Aug 09, 2017 12:43 am

When the Monitor type/name is known to the system (e.g. the display driver), an 'instant' swap of displaywidth and -height could be an indication of a rotated monitor. This rotation has to be checked, of course. Maybe the monitor itself reports this via communication channels on the display bus?
https://touch-base.com/documentation/Rotate.htm
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Re: Pivot monitor support on driver level?

Postby amifrog » Wed Aug 09, 2017 1:03 am

I don't really know what to look for, but
googling
'dvi display orientation detection' brings up alot of stuff. Maybe this helps?

I cannot provide any h/w informations about monitors and their communication, sorry.
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Re: Pivot monitor support on driver level?

Postby Raziel » Sat Aug 12, 2017 2:46 pm

Don't hold your breath, this feature is probably not even on any todo list anyway
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Re: Pivot monitor support on driver level?

Postby amifrog » Wed Aug 16, 2017 10:52 pm

Yeah, i know.

But while implementing new features to the drivers, maybe it is recommended to add those concerns or future features onto the remarks&considerations list.;)
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Re: Pivot monitor support on driver level?

Postby Raziel » Sat Aug 26, 2017 5:33 pm

amifrog wrote:Yeah, i know.

But while implementing new features to the drivers, maybe it is recommended to add those concerns or future features onto the remarks&considerations list.;)

I bet this will be a feature "that has to be done by program authors" that want this supported
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