USB portsnot working in XP SP2

  • Thread starter Thread starter Ken C
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K

Ken C

I have a medion laptop, am using Windox XP home SP2. The usb ports aren't
working on the PC, when you connect mouse or USB key nothing works at all. I
have tried removing USB drivers from System devices, and reinstalling but
this hasn't helped. Any IDeas?
Thanks
Ken
 
Ken said:
I have a medion laptop, am using Windox XP home SP2. The usb ports aren't
working on the PC, when you connect mouse or USB key nothing works at all. I
have tried removing USB drivers from System devices, and reinstalling but
this hasn't helped. Any IDeas?
Thanks
Ken
Click to expand...

In terms of toys to play with:

Everest Home Edition (Lavalys - payware versions also available)
Provides basic views of the presence of hardware.
If it wasn't for this, I'd have to use Linux :-)
http://www.majorgeeks.com/download.php?det=4181

UVCView (Microsoft) - shows stuff plugged to USB ports
http://www.microsoft.com/whdc/device/stream/vidcap/UVCViewdwn.mspx

Device Manager - built into Windows - shows hardware entries/drivers used

And a previous post I typed up, uses info from usbman.com to
fix USB problems. Basically, you delete USB entries from Device Manager,
while in Safe Mode. The idea of doing this is, the OS rediscovers the
deleted hardware, builds a driver list, and puts stuff back. It should
also enumerate connected USB devices again, clearing out any sludge
accumulated from before.

http://groups.google.ca/group/microsoft.public.windowsxp.hardware/msg/9be6ea3b38081abc?dmode=source

It is possible for USB ports to just die. Or for the power source on the
port to stop working. A mouse with a red LED inside it, is a good way
to see if the port is getting power at some point of the computer's
operation.

HTH,
Paul
 
Start the computer in the safe mode. Remove all the USB drivers.
Re-start and see if this works.

If the ports still do not work. Find out if there is an easy way to
re-set the mother board BIOS set-ups for your computer.

The hard way is to open the computer, and remove the battery. After 20
minutes, replace the battery, and re-start. Sometimes, after removing
the battery, shorting out the battery terminals helps to deplete the
BIOS set-up faster.

After restarting, you may have to go in to the BIOS settings and
re-enter some of the parameters.

--

Jerry G.


I have a medion laptop, am using Windox XP home SP2. The usb ports
aren't
working on the PC, when you connect mouse or USB key nothing works at
all. I
have tried removing USB drivers from System devices, and reinstalling
but
this hasn't helped. Any IDeas?
Thanks
Ken
 
In terms of toys to play with:

Everest Home Edition (Lavalys - payware versions also available)
Provides basic views of the presence of hardware.
If it wasn't for this, I'd have to use Linux :-)http://www.majorgeeks.com/download.php?det=4181

UVCView (Microsoft) - shows stuff plugged to USB portshttp://www.microsoft.com/whdc/device/stream/vidcap/UVCViewdwn.mspx

Device Manager - built into Windows - shows hardware entries/drivers used

And a previous post I typed up, uses info from usbman.com to
fix USB problems. Basically, you delete USB entries from Device Manager,
while in Safe Mode. The idea of doing this is, the OS rediscovers the
deleted hardware, builds a driver list, and puts stuff back. It should
also enumerate connected USB devices again, clearing out any sludge
accumulated from before.

http://groups.google.ca/group/microsoft.public.windowsxp.hardware/msg...

It is possible for USB ports to just die. Or for the power source on the
port to stop working. A mouse with a red LED inside it, is a good way
to see if the port is getting power at some point of the computer's
operation.

HTH,
Paul
Click to expand...
I deleted USB entries, rebooted and XP reinstalled them with no luck.
However I couldn't get laptop to go into safe mode. THe only options
at startup were F2 setup and F12. Whenever i pressed F8 nothing
happened. The setup of the laptop is preconfigured by Medion. Is there
another way to boot into safe mode?

I attached mouse with red LED and LED didn't light up at all.
I tried programs above and basically they said there were no USB
devices attached.
 
Start the computer in the safe mode. Remove all the USB drivers.
Re-start and see if this works.

If the ports still do not work. Find out if there is an easy way to
re-set the mother board BIOS set-ups for your computer.

The hard way is to open the computer, and remove the battery. After 20
minutes, replace the battery, and re-start. Sometimes, after removing
the battery, shorting out the battery terminals helps to deplete the
BIOS set-up faster.

After restarting, you may have to go in to the BIOS settings and
re-enter some of the parameters.

--

Jerry G.


I have a medion laptop, am using Windox XP home SP2. The usb ports
aren't
working on the PC, when you connect mouse or USB key nothing works at
all. I
have tried removing USB drivers from System devices, and reinstalling
but
this hasn't helped. Any IDeas?
Thanks
Ken
Click to expand...

I pressed F2, went into BIos setting and removed USB legacy
functionality and booted up. Rebooted anc changed settings back to
normal, there was no change. Do you think it is still worth removing
battery from laptop to clear settings?
 
I deleted USB entries, rebooted and XP reinstalled them with no luck.
However I couldn't get laptop to go into safe mode. THe only options
at startup were F2 setup and F12. Whenever i pressed F8 nothing
happened. The setup of the laptop is preconfigured by Medion. Is there
another way to boot into safe mode?

I attached mouse with red LED and LED didn't light up at all.
I tried programs above and basically they said there were no USB
devices attached.
Click to expand...

There are some suggestions for Safe Mode here (scroll to the long answer).
I don't know if what you are seeing, is a sign of a virus/trojan,
but perhaps there is more to it than meets the eye.

http://au.answers.yahoo.com/question/index?qid=20061127023731AAwimKp

What USB entries show up ? Examples here - this example includes
Intel chipset USB entries, and a separate NEC PCI USB card.

http://www.usbman.com/Guides/checki4.jpg

The fact that the LED doesn't light, doesn't mean it is broken, but
the power may be switched off to the port.

I just did a test with my "test mouse". I have a Logitech USB mouse
with a red LED light. It doesn't actually light up, until after the
enumeration process is finished for the mouse. (Enumeration is a bit
slow, because my anti-virus software flagged it, allowing me a chance
to see that the mouse doesn't light up right away.)

My "Root Hubs" have a single driver file, usbhub.sys
There is a "Power" tab, and it shows the power for a device connected
to that Root Hub. The power is not measured as such - by checking using
UVCView, I can see the reported power is just copied from the mouse
enumeration information, and says "98 milliamps", stored as 0x31 in
the mouse info. (2mA per unit, 0x31 is 49 decimal, 2*49=98mA)

For USB 1.1, a Root Hub controls two ports, like a
pair of USB ports you see in a stack on the back of a desktop computer.
The USB2 Root Hub, is shared by all the ports, so you may find it
controlling six, eight, or ten ports.

The "Universal Host Controller" entries have a drivers list of:

uhcd.sys
usbd.sys
usbhub.sys
usbui.dll

For older operating systems, where sometimes a third party driver
is used, you might see similar names to the above four, only with the
letter "o" in front of the name. Those drivers are written by
OrangeMicro, as far as I know.

So have a poke around, and see what is there for drivers, and look
for any error messages and the like.

Paul
 
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