USB drive failures in Leopard

[Atakapa]

Friends, I was upgrading to leopard but I am facing trouble in mounting the USB Drive. My system can not recognize the USB drive. I have newer Mac Pro in the system with 10.5.1 but the USB port is not able to recognize any of the External hard drive and my 1 GB flash drive is also not recognized by it.

It was working for some time but around leopard upgrade it stops working. Can you tell me any solution for this? I have tried some suggestions from my friends but not helped me. Ant help will be appreciative.
Thanks.

[Hardwareman]

Yes, we can help you. You should go to System profiler and select the USB port. It will show you some information about your USB port. You should post that and then we will be able to help you in better way. Copy paste that here and we will provide the solution as early as possible. Without that information we can not help you so do that first.

[Atakapa]

Thank you very much for your reply. Below is the USB profile of my computer.

USB Bus:

Host Controller Location: Built In USB
Host Controller Driver: AppleUSBUHCI
PCI Device ID: 0x268b
PCI Revision ID: 0x0009
PCI Vendor ID: 0x8086
Bus Number: 0x7d

USB Bus:

Host Controller Location: Built In USB
Host Controller Driver: AppleUSBUHCI
PCI Device ID: 0x2688
PCI Revision ID: 0x0009
PCI Vendor ID: 0x8086
Bus Number: 0x1d

USB Bus:

Host Controller Location: Built In USB
Host Controller Driver: AppleUSBUHCI
PCI Device ID: 0x2689
PCI Revision ID: 0x0009
PCI Vendor ID: 0x8086
Bus Number: 0x3d

Hub in Apple Pro Keyboard:

Version: 4.20
Bus Power (mA): 500
Speed: Up to 12 Mb/sec
Manufacturer: Mitsumi Electric
Product ID: 0x1003
Vendor ID: 0x05ac (Apple Computer, Inc.)

USB Optical Mouse:

Version: 21.10
Bus Power (mA): 100
Speed: Up to 1.5 Mb/sec
Manufacturer: Logitech
Product ID: 0xc00c
Vendor ID: 0x046d

Apple Pro Keyboard:

Version: 4.20
Bus Power (mA): 250
Speed: Up to 12 Mb/sec
Manufacturer: Mitsumi Electric
Product ID: 0x020b
Vendor ID: 0x05ac (Apple Computer, Inc.)

Hub in Apple Pro Keyboard:

Version: 4.20
Bus Power (mA): 500
Speed: Up to 12 Mb/sec
Manufacturer: Mitsumi Electric
Product ID: 0x1003
Vendor ID: 0x05ac (Apple Computer, Inc.)

USB Optical Mouse:

Version: 21.10
Bus Power (mA): 100
Speed: Up to 1.5 Mb/sec
Manufacturer: Logitech
Product ID: 0xc00c
Vendor ID: 0x046d

Apple Pro Keyboard:

Version: 4.20
Bus Power (mA): 250
Speed: Up to 12 Mb/sec
Manufacturer: Mitsumi Electric
Product ID: 0x020b
Vendor ID: 0x05ac (Apple Computer, Inc.)

USB Optical Mouse:

Version: 21.10
Bus Power (mA): 100
Speed: Up to 1.5 Mb/sec
Manufacturer: Logitech
Product ID: 0xc00c
Vendor ID: 0x046d

Apple Pro Keyboard:

Version: 4.20
Bus Power (mA): 250
Speed: Up to 12 Mb/sec
Manufacturer: Mitsumi Electric
Product ID: 0x020b
Vendor ID: 0x05ac (Apple Computer, Inc.)

USB Bus:

Host Controller Location: Built In USB
Host Controller Driver: AppleUSBUHCI
PCI Device ID: 0x268a
PCI Revision ID: 0x0009
PCI Vendor ID: 0x8086
Bus Number: 0x5d

USB High-Speed Bus:

Host Controller Location: Built In USB
Host Controller Driver: AppleUSBEHCI
PCI Device ID: 0x268c
PCI Revision ID: 0x0009
PCI Vendor ID: 0x8086
Bus Number: 0xfd

This is when I plugged the flash drive to USB port which was on the front pane. When I tried to connect it the extra port which was on the Apple keyboard, it recognized it easily but can not recognized when connected that directly to machine port.

[Maxforu]

After seeing your USB profile, all the things seems to be file. You should refresh it when you plug in device after starting your System profile. You can find the refresh under view menu( Command-R ). You can also try some other USB port like the extra port available on your keyboard. I hope this will help you. If not then it may be some driver issue and you should upgrade your USB driver.

[Biloxi]

I am also having the same problem with my USB port. I can see the USB drive when I go to system profiler but I can not use it. I have dual, quad core Intel Xeon cpus in the system. I contacted to Apple care for this issue. My Logitech mouse freezes after every 20 to 25 minutes. Once it gets hanged I have to restart the computer and I found the issue gone for some time. I hope that I can get solution for this here. I am waiting for your reply. Please help.

[T.J.]

No, this problem is not associated with Intel Macs. When I upgraded to Leopard, I found my computer has stopped recognizing the MP3 player. I plugged the MP3 player to the keyboard and it alerts for low power and no connection. When I connected the memory card to the printer it shows me its icon on the screen. So it reduces the problem to 60 to 70 % in comparison with MP3.

[Rawko]

Are you ejecting the flash drives in the first place? I would like to tell you that the operating system keeps an image file which is called the cache. It is nothing but a part of data thatcomputer keeps in the memory. Many of the times reformatting on another Mac running Tiger or leopard may solve this problem.