USB HP Scanjet 5200C kills my USB ports

Ian Dowse iedowse at
Wed Jun 16 08:36:03 GMT 2004

In message <200406161510.35187.doconnor at>, Daniel O'Connor writes:
>On Wed, 16 Jun 2004 14:16, Daniel O'Connor wrote:
>> When I try and plug my scanner into to my laptop, it works, but once I
>> unplug it, the USB port is no longer useful - it detects nothing when a
>> device (I've tried the scanner and a trackball) is plugged in.

>uhci0: <Intel 82801DB (ICH4) USB controller USB-A> port 0xbf80-0xbf9f irq 11 at device 29.0 on pci0

There have been reports that turning off a "Legacy USB" or similar
setting in the BIOS will help on this chipset. The UHCI driver does
attempt to disable legacy support in the hardware (search for
PCI_LEGSUP for details), but it seems that it needs to do more.


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