Hi,
I'm a paid PD 10.3 and PD11.0 user.
Upon installing PD 11.0.2-TRIAL onto a clean-installed, plain-Jane,
virgin, System El Capitan test drive, I was happy to noticed that
5 USB devices, that are needed within Windows 7, worked,
and that implementation seems to be an improvement (caveat, first impression)
over version PD 10.3
A weird behavior comparison between Parallels 10.3
and the new Parallels ver. 11.0.2 is noteworthy.
The USB Controller menu at the top right corner, bearing
the tiny USB plug icon is where the wierdness resides.
Under Parallels
10.3, in order to get a USB device to function from within windows, or Linux, the
Configure...
must be set up under connection preferences
AND, the displayed menu picks for installed usb devices
must
bear the checkmark to the left in the tiny icon menu, otherwise a device will not become active within the VM.
The checkmarks have to be checked with
every Parallels bootup (except for 1 Logitech device which bears the
checkmark on its own).
Improvement with wierdness, comes under the new PD ver.
11.0.2
The
Configure... must be set up,
of course, and, fortunately, it retains its settings.
Once this is done, the need for the checkmarks to the left of each newly installed
USB device is a farce. Usually the device works in spite of no checkmark
to the left of it. However, on one random occasion, i had to diddle with the
checkmark, to get a particular logitech device to work, after that, it behaved itself.
I have no way of even speculating the background of why this strange behavior occurs;
but, even so, there appears to be an USB interface improvement over version 10.3.
Users might ought to be informed that the presence or absence of the
checkmark can sometimes be ignored, unless a stubborn usb device needs to be
nudged into working.
Praise and kudos go to Parallels engineers for coping with the mess that Apple Computer
engineers made (upon rewriting the USB drivers). Interesting details of how the
USB drivers were re-written, the consequences, and port injector work-arounds, are described
http://www.tonymacx86.com/el-capitan-laptop-support/173616-guide-10-11-usb-changes-solutions.html
on the Tonymacx86 website
Partial quote
In 10.11, Apple has completely rewritten the USB drivers. The new drivers appear to employ the use of ACPI to a much greater extent than the previous drivers. This puts more pressure on ACPI (DSDT) to be correct. If it is not correct, ports that exist may not be enabled by the new drivers.
In fact, even Apple's own products were found to be incorrect, so Apple created a way to override DSDT with a port injector. In the event properties are injected to define the available ports, these properties are used instead of ACPI.
