Comment 18 for bug 182038

This does not happen with all jpegs. For example, open www.ubuntu.com: the middle top jpeg (the one I attached above) has the problem, but the one on the left (with the four people, http://www.ubuntu.com/files/masthead/ulivecfp/masthead-left-gutsy.jpg) - is fine. However, this is 100% consistent - certain jpegs have the problem, and always do, in all of my testing. (No idea what makes certain ones vulnerable to this.)

Regarding PNG images, there are other serious issues with them. In some cases - not all - they completely fail to load, leaving an empty area, not even a black rectangle, and this occurs for ALL zoom levels. There is a bug at Mozilla here:

https://bugzilla.mozilla.org/show_bug.cgi?id=409345

An example page for testing is this:

http://www.canonical.com/projects/landscape

There should be several screenshots, but none appear when using the "nv" driver - there is just blank space. Sometimes the images load partially, but scrolling away and then back makes them vanish. All of this works with the "nvidia" binary driver, so again, the issues are with the "nv" driver.