Impossible to grab scrollbar handler in wide dropdown menus

[Lisa Schmidt]

Ever since I am using Ubuntu with Unity, I have the problem that in many cases I cannot grab the scrollbar handler of dropdown menus. This usually happens when a dropdown list is wider than the original menu itself.

Example:

1. Install application mkvtoolnix.
2. Open mkvmerge GUI from Dash
3. Add MKV file (button 'Add') that contains a video and/or audio track
4. Select video or audio track from list 'Tracks, chapters, tags'
5. In tab 'General track options' open the 'Language' dropdown list of available languages to set
6. Try to scroll to desired language by grabbing scrollbar handler of dropdown list
7. It is not possible to grab this handler; you will end up clicking on the desktop

See screenshot.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1103014/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Lisa Schmidt (boxnotify)]

Problem is that I don't have a clue how to find a "source package" for overlay scrollbars. The help pages didn't help. This is all Chinese to me.

[Fabio Marconi (fabiomarconi)]

I cannot reproduce the issue on raring
Assigning to overlay-scrollbar package for a better triage.
Thanks
Fabio
---
Ubuntu Bug Squad volunteer triager
http://wiki.ubuntu.com/BugSquad

[Lisa Schmidt (boxnotify)]

I happens to me on 12.04 and 12.10

[Lisa Schmidt (boxnotify)]

Oh, and I installed mkvtoolnix via ppa from the developer's website:

http://www.bunkus.org/videotools/mkvtoolnix/downloads.html

Still happens, no matter which version of mkvtoolnix I ever used. It's a problem of those overlay scrollbars. I experienced it in other applications as well, no matter if a fresh install of Ubuntu or not. However, mkvtoolnix is the application I remember at the moment after I experienced it again today.

There is also a sometimes problem of horizontal overlay scrollbars covering buttons that are below in case those buttons are very close to the scrollbar area. Those buttons then cannot be clicked. However, I can't remember which application it was where I experienced this.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.