jimr111998
asked on
XP USB port Freezes Occasionally
This does not happen all the time. Microsoft acknowledges that if a USB device is
inserted and remove a few times quickly the port can freeze and not respond to any
devices plugged it to it.
They suggest
1. use device manager menu option of USB controllers to "scan for changes"
2. reboot the computer
I have found only "reboot the computer" option to solve the problem.
My question is how can I reset or cause XP to do what ever it does on boot up to
get the USB port working again without having to reboot?
This situation happens while I am in a development mode working with sensitive
USB devices that have a tendency to detach and reattach quickly when certain
loading happens on that port. ( suspect USB power issues) As I am debugging it is
a pain to have to reboot every time this happens.
inserted and remove a few times quickly the port can freeze and not respond to any
devices plugged it to it.
They suggest
1. use device manager menu option of USB controllers to "scan for changes"
2. reboot the computer
I have found only "reboot the computer" option to solve the problem.
My question is how can I reset or cause XP to do what ever it does on boot up to
get the USB port working again without having to reboot?
This situation happens while I am in a development mode working with sensitive
USB devices that have a tendency to detach and reattach quickly when certain
loading happens on that port. ( suspect USB power issues) As I am debugging it is
a pain to have to reboot every time this happens.
i suggest to use SafelyRemove : http://safelyremove.com/?pid=1
it handles your USB devices better, and reconnects them when removed, without having to reconnect physically
it handles your USB devices better, and reconnects them when removed, without having to reconnect physically
ASKER
nobus,
I have tried safely remove but it does not solve the problem.
I am going to further explain the situation in the next comment.
I have tried safely remove but it does not solve the problem.
I am going to further explain the situation in the next comment.
ASKER
To Further explain the situation.
I believe most here can create this situation on an XP computer.
The Idea is to quickly insert and remove a USB device. By hand may
not cause the situation because insert and remove is not quick enough.
I have a powered USB extender with an on off switch. I can do this rapidly.
After about 4 or more on/offs(inserts/removes) the USB port that the extender is
plugged into becomes inoperable. When in this state, you can plug any USB device you
want into that port and XP will ignore it. No response ... nothing. It is as
windows has stopped listening to that port.
I believe most here can create this situation on an XP computer.
The Idea is to quickly insert and remove a USB device. By hand may
not cause the situation because insert and remove is not quick enough.
I have a powered USB extender with an on off switch. I can do this rapidly.
After about 4 or more on/offs(inserts/removes) the USB port that the extender is
plugged into becomes inoperable. When in this state, you can plug any USB device you
want into that port and XP will ignore it. No response ... nothing. It is as
windows has stopped listening to that port.
well - that is not how you should use an usb port
i can think of 1000 ways to wreck connections, by misusing them
you should insert, and remove them as a normal user does - with safely remove procedure
NOT by switching ot off/on fast
i can think of 1000 ways to wreck connections, by misusing them
you should insert, and remove them as a normal user does - with safely remove procedure
NOT by switching ot off/on fast
ASKER
nobus,
You are right but if you re-read my initial post this is what I said:
You see, I am not doing this on purpose but Switching on/off fast simulates this problem for people who do not have the USB devices I am working with.
There must be a way to re-initialize the USB port without needing
to reboot which is time consuming.
You are right but if you re-read my initial post this is what I said:
I am in a development mode working with sensitive
USB devices that have a tendency to detach and reattach quickly when certain
loading happens on that port. ( suspect USB power issues) As I am debugging it is
a pain to have to reboot every time this happens.
USB devices that have a tendency to detach and reattach quickly when certain
loading happens on that port. ( suspect USB power issues) As I am debugging it is
a pain to have to reboot every time this happens.
You see, I am not doing this on purpose but Switching on/off fast simulates this problem for people who do not have the USB devices I am working with.
There must be a way to re-initialize the USB port without needing
to reboot which is time consuming.
sorry - forgot that part...
i suppose you tried the part on solving the problem yourself as well in this MS article?
http://support.microsoft.com/kb/817900
i suppose you tried the part on solving the problem yourself as well in this MS article?
http://support.microsoft.com/kb/817900
does it work if you just attach a usb drive and leave it there
is it all the ports or just 1
is it all the ports or just 1
ASKER
nobus,
Yes method one does not work the other two methods require rebooting the computer.
Yes method one does not work the other two methods require rebooting the computer.
ASKER
IanTh,
Yes the USB port works fine with anything attached to it as long as it is
not inserted/extracted rapidly several times.
Note: This phenomena is seen on any USB port running under XP even your
computer if you can insert and remove fast enough several times.
Yes the USB port works fine with anything attached to it as long as it is
not inserted/extracted rapidly several times.
Note: This phenomena is seen on any USB port running under XP even your
computer if you can insert and remove fast enough several times.
does it do the same under windows7 ?
i suppose you best can call in more experts to help on this one - use request attention and ask the mods
i suppose you best can call in more experts to help on this one - use request attention and ask the mods
ASKER CERTIFIED SOLUTION
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jimr - tw for that info
i'm bashing my head now - since i know DEVCON for a long time...just did not think about it..
i'm bashing my head now - since i know DEVCON for a long time...just did not think about it..
ASKER
There were no other suggestions that would rest the USB port without rebooting the computer. The solution I found and tested solved the problem.
"Allow the computer to turn off this device to save power"