Linux SDL canvas offset problem

[lukaspj]

This issue was created in the GarageGames Repository (Link to original issue).
The issue was originally created by @ghost and had a total of 0 comments that may contain additional information. The original issue description is pasted below:

If the window resolution is larger than the system resolution, it will resize the window to fit but there is an offset equal to the window border + whatever system panels are taking up the desktop area. The offset appears to only affect the drawing because the hit area for the buttons are where they should be.

The offset is fixed if you resize the window however if you change the window resolution it knocks the offset back.

Attached is a screenshot from Uebergame which shows the offset.