Archived from groups: microsoft.public.windowsxp.hardware (
More info?)
Lucio Cicuto wrote:
> Why can't I go back to SP1? I realized the problem 2-3 weeks after I
> upgraded. Everything else works and I thought this would be easy to
> resolve. If I would have realized it right away, I would have gone
> back.
You still can uninstall SP2....look in add/remove programs.
>
> Did I check the manufacturer's web site? Yes. So far everything read
> both from users and manufacturers is that Microsoft provide USB
> drivers.
The motherboard mfr should have their own...
> No one else. I even tried getting drivers from Belkin and
> after I installed them, they turned out to be the Microsoft drivers.
You may need updated drivers for the USB ports themselves, not for the
devices. They're detecting a non usb 2.0 port, even though they're usb 2.0
capable. Did you see http://www.matsonic.com/new/download_sis.htm? Try
updating your BIOS while you're at it?
>
> The Seagate external 120Gb HDD installation instructions specifically
> say I don't need drivers because they are supported by Win XP. There
> wasn't even a disk included in the box.
>
> Many individuals suggest "uninstall all USB device drivers and plug
> them back in 1 at a time". I tried that and still no go.
>
> One thing I'd like to try is to disable "plug'n'play, uninstall all
> the drivers, and reinstall 1 device at a time starting with the USB 2
> devices to see if that does it. Except I don't know how to
> temporarily or permanently disable PNP.
>
> If this is not a mystery, then why are so many of us so confused?
I'm confused by a lot, but I usually figure I'm missing something rather
than deciding it's one of those unsolvable mysteries of the cosmos. That
said, I gave up running SP2 on this here laptop (Thinkpad A20m) because I
had too many hardware problems I couldn't resolve. On some
hardware/installations it's worked like a champ. SP2 is *huge* in what it
contains...it's essentially a new OS in many ways.
>
> Lucio
>
> "Lanwench [MVP - Exchange]"
> <lanwench@heybuddy.donotsendme.unsolicitedmail.atyahoo.com> wrote in
> message news:OlW3pO1vEHA.1404@TK2MSFTNGP11.phx.gbl...
>> Lucio Cicuto wrote:
>>> Same problem here....I have an HP Printer, Microtek Flatbed scanner,
>>> Minolta Film scanner and a Seagate external 120Gb drive. Al worked
>>> perfectly with XP Home SP1. After I upgraded to SP2 the Minolta Film
>>> Scanner and external drive show up as "Unknown Devices". Both these
>>> are USB 2 devices. If I remove the Enhanced USB controller using
>>> Device Hardware Manager, the system recognizes both USB 2 devices
>>> but now only run at USB 1.1 speeds. Once and only once, I did
>>> something which caused them to work but failed again after I
>>> rebooted the system. I have not been able to get them working again.
>>> Unfortunately, I can't remove SP2 and return to SP1 to try it.
>>
>> Why not?
>>>
>>> I'm running a Matsonic motherboard with SiS chip set.
>>
>> Did you check the hardware mfr's website for updated drivers?
>>
>>> Given this
>>> thread and all the other folks having USB issues after installing
>>> SP2, I highly doubt this is vendor specific. Since USB drivers are
>>> supplied by Microsoft, I believe this is in their court.
>>
>> Device drivers should always be gotten from the source (hardware
>> mfr) - Windows ones often aren't the best ones, as you're seeing.
>>>
>>> This is MOST FRUSTRATING. I was counting on the external drive for
>>> backup.
>>>
>>> I think whoever solves this mystery will be a "geek god!".
>>
>> No mystery!
>>>
>>> Lucio
>>>
>>> "oldeja" <oldeja@hotmail.com> wrote in message
>>> news:3c6f492c.0410291857.116219c6@posting.google.com...
>>>> I have an hp pavillion 533 w/6 usb2.0 ports. I recently pluged my
>>>> plextor DVD burner in only to get the "high speed usb device
>>>> plugged into a non high speed port". I have been using this
>>>> device in this port for about a year with no problems until now.
>>>>
>>>> I have no external hub. I plug directly into the computer.
>>>> Device manager shows the 2.0 hub as being enebled and working.
>>>> Device manager shows the plextor being plugged into a usb root hub
>>>> that is not under the usb 2.0 root hub.
>>>>
>>>> I have tried unplugging all usb connections, uninstalling all usb
>>>> connections and then rebooting. It installs all usb ports both 2.0
>>>> and standard.
>>>>
>>>> When I plug in the plextor, same messasge. When I click on the
>>>> message it says I have 6 ports open and to plug into one of those.
>>>> I have tried all 6 physical ports with the same results.
>>>>
>>>> Any help would be greatly appreciated.
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