mouse scroll wheel suddenly stops working

[Martin Pitt]

When displaying certain websites (e. g.
https://bugzilla.ubuntulinux.org/show_bug.cgi?id=1919), scrolling down and up
with the mouse wheel works up to a certain point, then it suddenly stops.
Scrolling back with Cursor or Page Up/Down still works, and as soon as the page
is scrolled above the "magic line", the mouse wheel works again (but again only
for the upper part of the page).

[Matt Zimmerman (mdz)]

I've seen this as well, but I can't seem to find a bug report upstream yet. One
should probably be opened, if anyone can find a reproducible test case.

If I scroll around in bugzilla enough, it eventually happens, and the wheel goes
non-functional. Sometimes, though, if I scroll with the scroll bar a bit, it
comes live again. Maybe some element focus issue?

[Thom May (thombot)]

Forwarded upstream as https://bugzilla.mozilla.org/show_bug.cgi?id=263198

[Gianni Exile (dub-chamber)]

This problem occurs every time for me on page
https://bugzilla.ubuntu.com/show_bug.cgi?id=1762 for example.

[Thomas Winwood (jormundgand)]

This bug is apparently fixed in trunk build 2005-03-11. Could someone please
make a patch and put it up over hoary-updates?

(Technically the bug is FIXED and I'm marking it as so, but we need this ported
into the Hoary build of Firefox.)

[Thom May (thombot)]

A bug is only marked as FIXED when it's fixed in the distribution.
Also, this bug is no where near important enough to fix in Hoary without good
reason.

[Paul O'Malley (ompaul-deactivatedaccount)]

did not work from the off on live CD colony 4 CD, firefox / xchat

[dninja (robin-freedomsoftware)]

I get the same in Breezy. Does anyone have a work around or a fix for it?

[Chris Moore (dooglus)]

Created an attachment (id=4027)
test case

Here's a tiny HTML file (attached) which exhibits the bug every time for me.

I see the problem in these cases:

in firefox_1.0.6-1ubuntu14_i386.deb
in firefox_1.0.7-0ubuntu15_i386.deb
in breezy kernels 2.6.12-8-386 and 2.6.12-9-386
in my old profile, and in a freshly made one

I *don't* see the problem in the pre-compiled firefox 1.50beta1 from
mozilla.org.

Note that I don't have a mouse, I use a synaptic touch pad on a laptop. I run
my finger up and down the right hand edge of the touchpad to scroll windows up
and down, and this is what I'm seeing locking up. I guess as far as firefox is
concerned it makes no difference.

[Chris Moore (dooglus)]

... and here's a huge page for the upstream bug:

    https://bugzilla.mozilla.org/show_bug.cgi?id=97283

[Ian Jackson (ijackson)]

The upstream bug report contains a large and complex discussion. This bug has
existed pretty much forever upstream. So, I think that this is not the kind of
thing that we ought to be carrying a patch for. This will be fixed in dapper
when we take the new upstream.