Emacs23 GUI on Ubuntu 10.04 LTS. I have not previously changed any settings regarding Emacs scroll behavior. However, today I noticed a peculiar jumping behavior when scrolling in the buffer - the cursor down key scrolls down, as usual, to a point, and then the next keystroke sometimes scrolls down the buffer or sometimes appears to scroll up the buffer and then move the highlighted line down. Apparently, this was a more erroneous behavior, rather than normal or predictable buffer switching. If I moved the cursor down, the screen would jump, scroll and stutter, and then run forward and then stutter.
I searched for some answers and tried a few mentioned here, but nothing solved the problem. Only then I realized that this behavior is new - it appeared only after I changed the font in the buffer using Cx C-- . When I returned the font to "default" using Cx C-+ , the scroll behavior returned to normal (the point moves to the last line, then the next press scrolls a few lines and moves the point up and displays the lines below, this is the default, I think and I am pleased with this). Ideas?
Edit: scrolling works fine (as expected / default) regardless of font size changes. Changing the font smaller a second time makes scrolling more bizarre.
Edit: Temporary workaround: revert to using emacs -nw
Update: Tested on another Ubuntu 10.04 computer (desktop). Launched Emacs 23 and uploaded the log file. Maximized Emacs. From right to down, the cursor and scrolling worked fine - the cursor reaches the bottom, the buffer scrolls, and the cursor moves to the middle of the screen. Cx C-- to reduce font size. Scroll down. The same weird, choppy behavior when some jumps don't seem to even move the buffer properly. Increase the font once, and the scroll will return to normal. Scrolling is excellent, regardless of font size. I briefly looked for the Emacs error tracker, but did not find an error that matched.
Saberwolfy
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