I upgraded to 4.2.4 this morning and installed host additions. Now I am seeing a frustrating problem with the Ubuntu getting confused about the size of the window when I am running in the default mode where the guest is Ubuntu 12.04 running in an ordinary macosx window.
At the login window for the ubuntu guest, everything looks and behaves normally. I have a standard window bar at the top of the screen, with the title and the red, yellow and green buttons in the left. When I log in, the ubuntu window manager draws over this menu bar, leaving a tiny remainder just a pixel or two high, and everything in the window is displayed shifted up by the same amount. Note that I write "displayed" because that's what happens: even though things are "displayed" shifted up, their active regions are still in their original locations. This means that if I want to click on a button or select something, I have to position the mouse cursor below the appearance of that thing by the corresponding amount. This gets frustrating very quickly.
If I resize the window, while the resizing is going on I see the macosx titlebar as normal, and everything looks right, but when I stop resizing it slides up again.
If I load a VM that has the 4.1.23 host additions, it works properly. It's only when I run 4.2.4 + the 4.2.4 additions that it does this.
My mac is running 10.8.2 with the latest software updates. The VM is Ubuntu 12.04.1, also completely up-to-date. The VM has the 4.2.4 host additions installed. The VM was created with a 4.1.22(?) version of VirtualBox, if that matters.
Any ideas how to fix it?
titlebar for 4.2.4 with Ubuntu 1204 + host additions guest
Re: titlebar for 4.2.4 with Ubuntu 1204 + host additions gue
More info:
I tried to build a new VM step-by-step to see where things broke -- installing the host additions, or updating the kernel, or installing some app I use, etc. I was unable to provoke the behavior (which is good, because now I have a working VM, but annoying because I can't reproduce the bug). It seems likely that the problem might be related to the fact that the original VM was installed on 4.1.x, while the new VM has lived its entire life under 4.2.4. Perhaps it's an issue with migrating from 4.1.23 to 4.2.4.
I tried to build a new VM step-by-step to see where things broke -- installing the host additions, or updating the kernel, or installing some app I use, etc. I was unable to provoke the behavior (which is good, because now I have a working VM, but annoying because I can't reproduce the bug). It seems likely that the problem might be related to the fact that the original VM was installed on 4.1.x, while the new VM has lived its entire life under 4.2.4. Perhaps it's an issue with migrating from 4.1.23 to 4.2.4.
Re: titlebar for 4.2.4 with Ubuntu 1204 + host additions gue
This topic is being discussed in another thread: viewtopic.php?f=8&t=51793