Re: ups not recognized by usb
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On 02/07/07 09:24, Lubos Vrbka wrote:
>>> ups work on different machine (with different board) - maybe the usb
>>> handling on this one particular board is not correct?
>> It's a possibility.
> would it be possible that low speed devices would be treated incorrectly
> , whereas high speed devices would be treated ok? that would correspond
> to the situation when usb flash disks work fine, but the ups not...
>
>> Have you plugged the UPS into a different computer? Maybe you got a
>> bad UPS.
> the ups was connected to different (older) computer for 2 years and
> worked perfectly this morning.
>
>> Have you plugged a different a different UPS into this computer?
> yes, the same model and the same age - and the same problem :(
>
>> Maybe this motherboard is dodgy and a US$20 USB card will solve the
>> problem.
> well, it might... but before adding anything into this brand new
> machine, i'd rather try other possibilities... it's not a personal pc,
> but rather 'office pc' and adding anything into it and getting it paid
> by the institution is not an easy task :(
>
>> Have you checked lsmod on the non-working and a working PC to
>> *ensure* that all the correct modules are loaded?
> well, i checked.
> on the working machine, i have
> ohci_hcd, ehci_hcd, usbhid
> on the non-working machine, i have
> ohci_hcd, ehci_hcd, usbcore
> as you can see, there is extra usbcore; otoh usbhid was missing. i
> modprobed it, but the situation remains the same...
>
> lsusb reports just 2 hubs...
> Bus 002 Device 001: ID 0000:0000
> Bus 001 Device 001: ID 0000:0000
>
>> Maybe you've already tried these possibilities but neglected to tell us.
> sorry for missing info.
Hmmm. And you're sure that the software on this machine is
*exactly* the same as the "working" computers?
If that is correct, then you've exhausted my expertise...
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