Re: Can't Find Root Hubs
- From: "Wesley Vogel" <123WVogel955@xxxxxxxxxxx>
- Date: Fri, 29 Jul 2005 14:15:34 -0600
TB,
It does not matter how Device Manger is opened.
You might want to read *all* of the articles mentioned here.
[[In Device Manager, USB game controllers are listed under Human Interface
devices (in Devices by type view). If the controller does not appear in
Device Manager, then USB may not be enabled in BIOS or EFI When you are
prompted as you start your computer, enter BIOS or EFI setup, and enable
USB.
• If USB is enabled in BIOS or EFI but the USB host controller does not
appear in Device Manager (under Universal Serial Bus controllers), or a
yellow warning icon appears next to the host controller name, then the
version of BIOS or EFI may be outdated. Contact the maker or vendor for your
computer and obtain the current version of BIOS or EFI.
• If the controller appears in Device Manager, right-click the controller
name and then click Properties. Problems and suggested actions are displayed
under Device status.
USB ports have a separate entry in Device Manager. To check the device
status, click Universal Serial Bus controllers, right-click USB Root Hub,
and then click Properties. If you do not see USB Root Hub, you might not
have a USB port installed on your computer. ]]
Resolving USB controller installation issues
http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/cpl_joy_tshoot_install_usb.mspx
This article says the USB Root Hub is under Universal Serial Bus
controllers.
General USB troubleshooting in Windows XP
http://support.microsoft.com/default.aspx?scid=kb;en-us;310575
Do you have an Intel Itanium-based computer?
[[This behavior occurs because Intel Itanium-based computers do not support
any power management features on an OPTi root hub. ]]
Power Management Tab Does Not Appear on Intel Itanium Computer on Windows XP
http://support.microsoft.com/default.aspx?scid=kb;en-us;307109
[[In Device Manager, there are two types of hidden devices in addition to
the devices that are displayed:
• Typical, hidden devices that are not displayed (non-Plug and Play drivers,
printers, and so on)
-and-
• Phantom devices that are not connected to the computer ]]
Device Manager Does Not Display Devices That Are Not Connected to the
Windows XP-Based Computer
http://support.microsoft.com/default.aspx?scid=kb;en-us;315539
> I recently had my BIOS and MB drivers updated by a professional.
What does this professional that you presumably paid have to say about this?
--
Hope this helps. Let us know.
Wes
MS-MVP Windows Shell/User
In news:874DD99B-20DA-4939-8FDD-1F5455886B0A@xxxxxxxxxxxxx,
TBown <TBown@xxxxxxxxxxxxxxxxxxxxxxxxx> hunted and pecked:
> Thank you for the response. I see the same thing I do when I go in
> through the Control Panel... no root hubs. They are not displayed.
> There is no power management tab.
> TB
>
> "Wesley Vogel" wrote:
>
>> Try this.
>>
>> USB Root Hub is under Universal Serial Bus Controllers
>>
>> Open Device Manager...
>> Start | Run | Type: devmgmt.msc | Click OK |
>> Clear down to the bottom click the [+] for Universal Serial Bus
>> Controllers
>>>
>> Double click USB Root Hub | Click the Power Management tab | UNCheck:
>> Allow the computer to turn off the device to save power | Click OK |
>> Close Device Manager
>>
>> Allow the computer to turn off the device to save power
>> [[Specifies whether the operating system turns off the selected device if
>> that device is able to be turned off. If the device is busy doing
>> something, however, (servicing a call, for example), the operating
>> system will not shut down the device. The operating system will try to
>> shut down every possible device only when it is hibernating. Some
>> devices must stay on at all times. If you need the device to stay on at
>> all times, do not check this box.]]
>>
>> The USB Root Hub should not be Hidden.
>>
>> --
>> Hope this helps. Let us know.
>>
>> Wes
>> MS-MVP Windows Shell/User
>>
>> In news:3B7C1C5C-DEFA-4BBF-9DE0-00D4D5E5D0AA@xxxxxxxxxxxxx,
>> TBown <TBown@xxxxxxxxxxxxxxxxxxxxxxxxx> hunted and pecked:
>>> I cannot get the Device Manager to display the tab for Power Management
>>> and thus cannot see the USB Root Hubs.
>>> I'd like to uncheck the box "allow the computer to turn off the device
>>> to save power".
>>> I have set the View to display hidden devices.
>>> I recently had my BIOS and MB drivers updated by a professional.
>>>
>>> I have purchased three CH Products for flying (Combatstick, ProThrottle,
>>> and Pedals) and the computer keeps dropping my stick after a while. I
>>> have changed USB ports and do not use the ports on the motherboard as
>>> there is a known conflict with Via chips and CH Products (the reason for
>>> the Belkin PCI card - NEC chipsets).
>>>
>>> I have even sent the stick back to CH, who tell me it is working
>>> correctly.
>>>
>>> Any help would be appreciated.
>>>
>>> TBrown
>>>
>>> Asus A7V8X Via - base MB
>>> AMD XP2200
>>> Maxtor 80Gb w/8Mb cache
>>> (2) Kngston 512 Mb 333Mhz DDR
>>> ATI 9800 Pro
>>> Hercules Gamesurround Fortissimo III
>>> Belkin USP 2.0 - 5 Port PCI card - F5U220
>>> WinXP Home w/SP2
.
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