Mouse pointer hangs on right edge of the screen

[Manuel Lentner]

I had a working setup of two guest machines (Debian5 and Windows XP) on my Windows 7 host. On the Debian5 machine, I'm using software which uses uinput for generating mouse events. For this reason i have to disable the guest-additions mouse integration (Host + I) to make this software working properly. But that's not the problem here.

Then I changed from VirtualBox 3.1.4 to 3.1.6, including an update of the guest additions. Now, I'm facing problems with the mouse integration, which are obviously a bug in virtual box: With activated mouse integration, everything works as usual. When i disable the mouse integration (Shortkey: Host + I), the mouse pointer hangs instantly on the right edge of the guest screen. I'm not able to move the mouse pointer away from this point, it seems to be fixed there. With very fast movements of the mouse i can displace the pointer some pixels far, but it returns instantly to the "magic attraction point". As said above, this is only related to a Linux Host with installed guest additions AND with disabled mouse integration. On my windows guest, there's no problem with 3.1.6.

See also the attached xorg.conf file, which was auto generated by the guest additions installer. I'm using Xfce as window manager.

[Michael Thayer]

So if I understand correctly, this worked with the 3.1.4 Additions and failed with the 3.1.6 ones. Did you try downgrading the Additions again? We do try to keep support for old Additions versions in newer versions of VirtualBox.

[Manuel Lentner]

I just tried the 3.1.4 addons again: exactly the same problem and the same behaviour. So the problem seems to be related to the 3.1.6 upgrade of virtualbox and not to the guest additions upgrade.