Monitor geometry attributes on W10

[Pascal Quesseveur]

Hello,

I have noticed the following when working with multiple monitors on
Windows 10.  I get 3 monitors, M1 M2 M3. Monitors M1 and M3 are
identical, resolution is 1920x1080. M2 resolution is also 1920x1080,
but increase factor is set to 125% in Windows.

When M1 is the primary display monitor geometry attributes are:

  - M1: (0 0 1920 1050)
  - M2: (1920 0 1536 834)
  - M3: (3840 0 1920 1050)

When M2 is the primary display monitor geometry attributes are:

  - M1: (-2400 0 2400 1313)
  - M2: (0 0 1920 1042)
  - M3: (2400 0 2400 1313)

IMO increase factor is not applied correctly. In the first case we
should have:

  - M1: (0 0 1920 1050)
  - M2: (1920 0 1536 834)
  - M3: (3456 0 1920 1050)

and in the second one:

  - M1: (-1920 0 1920 1050)
  - M2: (0 0 1536 834)
  - M3: (1536 0 1920 1050)

But perhaps I'm wrong somewhere.


-- 
Pascal Quesseveur
pquessev@gmail.com