RME Audio Hammerfall HDSPe MADIface, User Manual

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User's Guide HDSPe MADIface
© RME
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20. Mac OS X FAQ
20.1 Round about Driver Installation
The driver consists of a package file (pkg). A double click will start the OS X installer.
The actual audio driver appears as a kernel extension file. The installer copies it to
>System/
Library/ Extensions< . Its name is HDSP.kext . It is visible in the Finder, allowing you to verify
date and driver version. Yet, in fact this again is a folder containing subdirectories and files.
Nonetheless, this 'driver file' can be removed by simply dragging it to the trash bin. This can be
helpful in case a driver installation fails. An incomplete installation is not always recognized: The
installation routine does not open a message window with a note about a restart of the com-
puter. This indicates that the driver file was not copied and the driver was not installed!
Several users have observed that the installation routine occasionally stops and no longer
works correctly. This can be fixed by removing the corresponding extension file prior to installa-
tion. In some cases, also (or only) a repair of the
disk permission will help.
We have also received reports saying the driver update could not be installed on the system
disk - shown red crossed during the installation. Repairing permission may also help here. If
not, we're sorry, but have to recommend to contact Apple. Our driver has no knowledge of fold-
ers, disks etc., the installation is handled completely by the OS X installer.
20.2 MIDI doesn't work
In some cases MIDI does not work after the installation of the HDSPe driver. To be precise,
applications do not show an installed MIDI port. The reason for this is usually visible within the
Audio MIDI Setup . It displays no RME MIDI device, or the device is greyed out and therefore
inactive. Mostly, removing the greyed out device and searching for MIDI devices again will solve
the problem. If this does not help, we recommend manual removal of the MIDI driver and rein-
stallation of the complete driver. Otherwise repairing permissions may help.
The HDSP MIDI driver is a plugin. During installation it will be copied to
>Library/ Audio/ MIDI
Drivers< . Its name is Hammerfall DSP MIDI.plugin . The file can be displayed in the Finder
and also be removed by simply dragging it to the trash bin.