[mdlug] Problems with virtualbox, fedora 15, gnome 3

[Adam Tauno Williams]

Quoting Brian Brodsky <brianbrodsky at ameritech.net>:

> I have installed on my windows 7 laptop VirtualBox 4.1.2. I deleted my
> fedora 14 guest machine and created a fedora 15 guest machine. When I
> did this gnome 3 went to fallback mode. I installed the linux guest
> additions and then gnome 3 ran. I also disabled selinux. But any
> programs seemed extremely slow. The os is fine because when I logged
> into KDE desktop KDE programs ran fine. Gnome programs under KDE were
> still unresponsive. I then forced fallback mode and the gnome desktop
> and all apps seems fine. However, in the KDE desktop gnome apps still
> are either very slow or unresponsive. Does anybody know how I can get
> gnome 3 to run properly?

I'm not at my regular computer so I can't lookup the details but there  
is a minimum version of VirtualBox required for GNOME3 *Shell* [the  
default interface, vs. "Fallback"] to work correctly.

Generally it sounds like you Virtual Box VM is not correctly, or  
effectively, providing video acceleration.  GNOME3 Shell requires  
OpenGL acceleration [which is really *not* the same thing as "3d  
acceleration"; although people tend to conflate the terms].  I have no  
idea why the applications would be slow under KDE as well expect that  
(a) they are still attempting to use the same Cairo/rendering model  
that would be used by Shell [doubtful] or there is actually some  
timeout issue occurring accessing gsettings, d-bus, etc...  If you run  
a GNOME application from the command-line in another DE where it is  
unresponsive do you see it spewing any error messages?