1. Download a large image (e.g.
http://cdn.urbanislandz.com/wp-content/uploads/2011/10/MMSposter-large.jpg) and save it as /tmp/test.jpg
2. In an emacs buffer type "(insert-image (create-image "/tmp/test.jpg"))"
3. Type some arbitrary lines of text below this line.
4. In first line (containing insert-image), type C-x C-e at end of line to load the image.
5. Image should appear in buffer.
6. Scroll down repeatedly until past the image.
Expected behavior: Scrolls down smoothly even once scrolled past image.
Observed behavior: Scrolls down smoothly until end of image is reached. At end of image, the next scroll causes a huge jump in the window so that and only the text is shown but not any of the residual image.
7. scroll back up
Expected behavior: Scrolls upwards over image.
Observed behavior: Jumps over complete image and shows beginning of buffer.
Please let me know if there is anything else you need.
Thanks,
Thomas