Thanks for the answers!
Indeed I haven't used this resolution before. So this means that this behavior is more or less as expected then.
It does mean that for setting a resolution as a default I might have to do something else, for example select the desktop resolution (although we have seen that in some cases this leads to problems with too much video memory being used).
Or maybe I should avoid picking a resolution that is larger than the desktop resolution (this might solve the above incident but perhaps is not a general solution).
Edit: Or it's OK like this and it means the player would need to adjust their monitor, just like I should.
Just a wild guess. But it's not going to 1280*1024
It happens in Windows too (when I set this resolution on the desktop). You haven't simply failed to use that resolution previously, meaning that it hasn't been correctly positioned and stretched yet, have you?
Just change your monitor so it looks right.
Indeed I haven't used this resolution before. So this means that this behavior is more or less as expected then.
It does mean that for setting a resolution as a default I might have to do something else, for example select the desktop resolution (although we have seen that in some cases this leads to problems with too much video memory being used).
Or maybe I should avoid picking a resolution that is larger than the desktop resolution (this might solve the above incident but perhaps is not a general solution).
Edit: Or it's OK like this and it means the player would need to adjust their monitor, just like I should.