![]()
May be it works because your actual audio on the host is effectively compatible with AC'97 and your audio device is still more basicīut more recent "HD Audio" devices are not all directly compatible with this older AC'97 specification (which seems to be supported only as a local-only virtualization, indirectly on the guest where it reuses the actual HD Audio driver in a lower layer of the guest OS, and only t oprovide backward compatibility within some applications) HD Audio devices include additional security requirements (which are part of the DirectSound driver model specification) for managing, for example, the HDCP protocol over HDMI and digital audio output jacks, and for managing DRM rights and data encryption for the highest quality output (including within the audio mixer which cannot mix unsecured and secured audio sources and render a high quality mixed signal to an unsecured analog output). If you have one of the ID's above, can you point the location where you downloaded the driver ? Or say which is the manufacturer and version, as reported in your installed device ? But someone needs to explain then why my "virtualized" hardware PnP device Ids are different. #Ac97 realtek audio driver windows 7 updateIf, this can explain why Windows Update can find a driver for you, and not for me. Then look for the "hardware device IDs" or the "compatible device ID's: this is those IDs that are used y the device manager to accept compatible drivers, and that are also searched online with Windows Update. Open the Windows device Manager, click in the Multimedia devices category, select the device, and open its properties. Robhancock, can you look at your Device Manager and check which hardware device ID is detected on your installation, does it match any of the hardware id that I gave above ? I think that the issue may be related to the fact that the PnP emulation in VirtualBox doesn't properly report the correct SUBSYS value (it could report the VENdor id instead.), or it uses the SUBSYS value as the incorrect VENdor id. The only partially matching id must ignore the SUBSYS and REV identifiers (and it suggests the driver from DELL for its notebooks with integrated Intel audio devices): I tried to use the suggested driver (on Windows Seven), using the most precise ID:īut it failed most probably due to OS compatibility restrictions (enforced on Vista and Seven). So then, I've tried to look on the web for pci
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |