[Bug 48226] Re: auto-hidden panel sometime jumps to the top of the screen

[jmspeex]

The first and third issues are indeed covered in the bugs you linked. The second, however isn't:
2) When clicking on the main menu button, sometimes the panel hides itself and the menu pops up too low -- the bottom of the menu is aligned with the bottom of the screen instead of the top of the (still un-hiden) panel.

If you look at the screenshots I attached, they show two bugs at the
same time. The one from bug #30146 is that the menus are truncated. The
one I had in 2) is that the toplevel menu opened too low (hiding part of
the panel). These may or may not be related.

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auto-hidden panel sometime jumps to the top of the screen
https://launchpad.net/bugs/48226