usb not working.

[mark]

About 3 weeks ago (may 2008) I found that one of our pc's had lost its
usb functionality. Xp pro, installed and running for 3 years.
It has a ps/2 keyboard, ms usb optical mouse and occasionally has 2
different types of samsung flash based mp3 players connected.
After much fiddling I declared the usb controller dead (pc was 8 years
old) and swapped monitor, keyboards, mouse etc to another box running xp
pro fresh install.
3 weeks later I have the very same problem on this box.
That particular box had run xp pro for 3 years without a hitch with a
gaming usb keyboard and gaming usb mouse and a usb external drive with
no problems.

The symptoms (identical on both boxes);
Mouse is found to be frozen at log on to xp.
Inspection of device manager shows following under
universal serial bus controllers:

standard enhance pci to usb host controller
standard openhcd usb host controller

both with a black exclamation mark on a yellow back ground

right clicking either brings up a code 41 error message.

I have tried countess attempts at uninstalling them, rebooting, scanning
for hardware changes.
Updating drivers results in a message saying the driver is fine.

Uninstalled sp3 back to sp2.
Checked bios for usb settings enabled
Changed bios setting to enable/disbale pnp OS.
Added a registery key 'usb' with a 'dword value of
DisableSelectiveSuspend set to '1'
Also looked in registery for key that has 'filters' (?) but it did not
appear to exist.

I am now baffled.
Please help...

 

[Kelly]

Hi Mark,

Run the regedit on line 400:
http://www.kellys-korner-xp.com/xp_tweaks.htm

--

All the Best,
Kelly (MS-MVP/DTS&XP)

Taskbar Repair Tool Plus!
http://www.kellys-korner-xp.com/taskbarplus!.htm

SupportSpace
www.supportspace.com/pages?aiu=kellyskorner

 

[mark]

Hi Mark,

Run the regedit on line 400:
http://www.kellys-korner-xp.com/xp_tweaks.htm

No difference at all.
I take it you meant the .reg file on the right?

 

[mark]

Inspection of device manager shows following under
universal serial bus controllers:

standard enhance pci to usb host controller
standard openhcd usb host controller

both with a black exclamation mark on a yellow back ground

I guess I should add; that is ALL there is this section, nothing else
except these two items. No USB hub or anything and the PC has 10 ports
altogether.

I cant believe I have had 2 separate PC's do this and there isn’t a
solution.

 

[Kelly]

No - on the left.

--

All the Best,
Kelly (MS-MVP/DTS&XP)

Taskbar Repair Tool Plus!
http://www.kellys-korner-xp.com/taskbarplus!.htm

SupportSpace
www.supportspace.com/pages?aiu=kellyskorner

 

[mark]

No - on the left.

It still doesn't work
I tried it twice; the second time after removing the 2 host controllers

I'm still baffled as to what happened to the root hub........

 

[mark]

It still doesn't work
I tried it twice; the second time after removing the 2 host controllers

I'm still baffled as to what happened to the root hub........

Well I fixed it by a full reinstall.
Repair did nothing.
Now its working fine.
I'm still baffled as to what caused the root hubs to disappear.
I have taken the precaution of unticking the 'allow xp to switch this
device off' box in the root hubs properties.

Thanks for listening...

 

[hrvgds]

where exactly is the "allow xp to switch device off" option? I'd rather not
have to go through reinstalling parts of my dell laptop--I have enough
problems with it as it is.

Autumn

 

[mark]

where exactly is the "allow xp to switch device off" option? I'd rather not
have to go through reinstalling parts of my dell laptop--I have enough
problems with it as it is.

Autumn

Control panel>Device manager>usb controllers

right click each hub and choose properties and then choose power
management

Make sure that the little box labelled:
'allow the computer to turn off this device to save power'
is NOT checked.