Comment 45 for bug 1151622

I have Ubuntu 12.04 as a primary desktop. The hardware is a P9X79
motherboard with USB keyboard and USB mouse. I do not use Unity, etc. I
start TWM and use xterm most of the time.

If I boot linux-3.2.0-38-generic (Ubuntu 12.04), and fill the xterm
buffer with lines of text (repeat ls;ls;...;ls) and then grab the left
scroll bar with mouse-center button and scroll up, the effect is a
smooth scrolling of the text lines.

If I boot linux-3.2.0-39-generic (Ubuntu 12.04), or later linux kernel,
and fill the xterm buffer with lines of text (repeat ls;ls;...;ls) and
then grab the left scroll bar with mouse-center button and scroll up,
the effect is a slinky scroll of the text. The latest kernel I have is
linux-3.13.0-1, which has the slinky scroll.

I installed Ubuntu 14.04 on a spare disk and configured it similar to
the 12.04 system. After updating, it now runs Linux 3.13.0-6-generic.
If I fill the xterm buffer with lines of text (repeat ls;ls;...;ls) and
then grab the left scroll bar with mouse-center button and scroll up,
the effect is a smooth scrolling of the text lines.

Question: It appears the slinky scroll is related to Ubuntu 12.04, not
the particular kernel. Is this true?

Tom Dean