Starting the VM without filter does not help either. When I try to force access by checking a USB device in the devices menu (my translation again) I just get a message, that the device is busy, due to a previous request (probably the filter from the GUI, still trying to connect the device to the VM). Mind: the VirtualBox GUI shows USB support as available (at least it is possible to enable USB support, including USB 2, and set a filter for USB devices), but the " VirtualBox USB" device in the host devicemanager remains hidden and greyed out and the VM can not access USB devices on the host.
After that, the " VirtualBox USB" device is nevertheless shown in the devicemanager as a hidden (but seamingly installed) device (at least, when the proper systemvariables have been set), but no USB support is available for the VM. Then - while the VM is still starting) the host displays a notification, that the devicedriversoftware could not be installed and states, that the device " VirtualBox USB" had been unplugged. It´s still exactly the same story: Wben the VM starts for the first time after installation of VirtualBox, the host shows the usual message, that it has detected a new USB device and is installing devicedriversoftware for it. I tried VBox 3.0.10, build 54097 (PUEL), when I became aware it had become available today (that was around 10:00 am German local time (GMT +1), but to no avail. Needless to say, that I did boot my computer after each attempt to install / uninstall VBox, or USB-Drivers. I had to add the system variable devmgr_show_nonpresent_devices=1, before it was shown as a greyed out device, which then could be deleted. Originally " VirtualBox USB" was not even shown in the device manager, even with "show hidden devices" selected, since the host sees it as a disconnected device. Uninstalling " VirtualBox USB" from the device manager does not help either. Uninstalling and reinstalling VBox did not help (either with 3.0.6 or 3.0.8 I tried it repeatedly). Remember: I´m from Germany an I have a German edition of Windows so the messagetext is my translation the exact message may differ on nongerman editions of Windows, but the meaning is translated correctly. The host displays a message saying that the driversoftware was not installed, added by " VirtualBox USB Device unplugged". After installing VBox and starting the VM, the host tries to install " VirtualBox USB" driver but is not succesfull. While the VM still starts and runs normally, all USB support for the VM is gone. a Philips Speechmike Pro, LFH 6274) after upgrading from Vista to Win 7 I tried upgrading VBox to 3.0.8. When I experienced some bad performance of USB-Gear in the guest (i.e. The VM was starting normal and there were no warnings, etc. At first (then still with VBox 3.0.6, which I had been running under Vista 64 Bit, due to frequent bluescreens in the guest with VBox 3.0.8) everything seemed ok after upgrading the host to Win 7. I´m using a guest with Win 7 RC 32 bit (no 64 Bit RC available). Hardware is a Core 2 Quad Intel CPU (Q8300) with 2,53 GHz and 8 GB RAM. Just upgraded from Vista Ultimate 64 bit (German edition too) where all was ok.
There may be some limitations (SMP and OpenGL) but my working 64 bit Guest suggests that it does work.I was running VirtualBox 3.0.8 (same problem with 3.0.6 and now with 3.0.10) on a Windows 7 Ultimate 64 bit host ( German edition, though the forum-posts show the same problem for users of English editions too). ? OpenGL host support is not yet available on 64-bit kernels ( Mac OS X after save/restore state or a resize of the ? There are several redraw problems with compiz enabled window man- agers on Linux guests. ? OpenGL windows aren’t updated in the Dock Icon real time preview. Additional we are aware of the following issues: This counts especially in combination with compiz enabled window managers. In general the OpenGL support for Linux guest is experimental.
– The CPU frequency metric is not supported. – The numlock emulation has not yet been implemented. The following restrictions apply (all of which will be resolved in future versions): 64-bit guests on 32-bit hosts do not support SMP yet ( except on Mac OS X).In the 3.0.12 manual under Known Limitations there are 3 references to Mac OS X. Sasquatch wrote: I believe that 64 bit Guests on Mac are listed there as not working.