Pen strokes lag on external display in Presentation View when writing on slides in the Presenters View
This is more of a bug than a feature request, but I was directed here by Microsoft support – they said this bug is “by design”, but I don’t think it really is…
For the initial discussion, see here:
To summarize it again: When I show PowerPoint slides with my computer connected to an external display, I can write on the Presenter View's slide – the strokes are smooth and the pixels appear “on-the-fly” on the slide where I write them. However, in the Presentation View, the pen writing lags behind: it only shows up in the Presentation View when I finish the stroke on the Presenter View's slide (e.g. release mouse button or remove pen from screen). The two views seem not to be synchronized while I am writing.
This makes the “write with a pen on a slide during a presentation” feature virtually useless for teaching, as the audience cannot follow my talk and pen writing in a synchronized manner. The students cannot see what I write until I release the pen, and then they have to rush to copy what I have written, and can’t focus on what I say. Also, if I draw a diagram, they can’t follow the line as it develops, so I can’t show them what I want them to see.
If this feature is to be useful, it MUST be like chalk on a board – appearing immediately, and not delayed…
Richard Brown commented
This. Drives. Me. Crazy! It's the ideal way for me to teach (maths, in a large classroom) but the lag, which gets worse the more you add to a slide, is horrendous.
Please please please fix this!