My wife and I both have Macs and we both have a fair amount of USB peripherals.
Last February we both got GE 8 port powered USB hubs and we've both found
erratic performance with multiple USB devices attached.
Her computer is a lamp style iMac 1.25 ghz G4 with 768 megs of ram.
Mine is a G5 2.5 dual with 3.5 gigs of ram.
Admittedly, I've got a lot of USB devices:
-4 external USB hard drives in powered cases,
-One Midiman Midisport 2x2 MIDI interface
-One M-Audio Fast-Track audio interface
-USB keyboard, mouse, gooseneck lamp.
-I also charge my cell phone via the USB connection and sync it to isync that way too.
There are times after rebooting when some of the external drives just
don't appear - shutting them off and on might help.
The worst part is the MIDI interface: sometimes it just doesn't want to work.
I've disconnected the device, rebooted and sometimes it works, sometimes
it doesn't.
My wife's issue is that she's got an Epson CX6600 printer, Apple Pro
keyboard / third party mouse with scroll wheel, iPod Mini connected
via USB.
She was finding the third party mouse would sometimes stop functioning.
She eventually went back to using an Apple Pro mouse but eventually had
to just charge the iPod via the electrical connection at the wall since if
she connected it, sometimes other USB peripherals would stop.
I'm beginning to think the issue is the GE USB hubs - they are powered
by an electrical connection but I suspect they are not the greatest ever
made - I just happened to grab them at a computer store when I needed
them.
My question: should I expect this behavior of ANY powered USB hub (are
there other USB 8-port or more hubs that you're using that don't do these
behaviors) or is it a OS X glitch/bug?
Anyone running into this stuff?
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