Ok, after some searching, I think I've found the source of the problem: VBoxClient failed to start at login, probably because it couldn't access /dev/vboxadd, which is only accessible by root:root.
>From the VirtualBox site and changelog.Debian.gz I gathered that VirtualBox 2.0.0 and up are built with 'hardening' enabled by default[1]. which requires all binaries to be setuid root. Changing the VBoxClient to be setuid root and restarting the guest solved my problem. [1]: See configure, lines 68, 2131-2149 ... -- Cannot set resolution higher than 800x600 when running Jaunty Jackalope through VirtualBox https://bugs.launchpad.net/bugs/301028 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
