USB port broken, causing BSOD. Disconnect?

May 13, 2014 at 17:28:52
Specs: Windows Vista, P8700/4GB Ram
My HP HDX laptop has one USB port that is not working (out of several). My computer repair person thinks that is what is causing a periodic BSOD shutdown, as there is a warning each time the computer comes on citing the malfunctioning USB device.. Is it safe to snip the wires to this port, and would that solve the problem (or create others)??

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#1
May 13, 2014 at 22:27:07
The USB port would be soldered to the motherboard so there wouldn't be any wires to snip. And yeah, if you could it might cause other problems.

Could the 'malfunctioning USB device' be something plugged into the port and not the port itself? I take it you've isolated the port and aren't using it for anything? USB ports are pretty simple. If it is causing problems maybe it's dirty or it's contacts are bent or a small piece of metal got in there and is causing a short.

Also check in device manager and see if a problem shows with it there.


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#2
May 14, 2014 at 09:07:01
I just tested the 3 ports, read and write (copy file from C drive), and they all worked, so don't know why he thought that particular one is malfunctioning. Under Device Manager/USB controllers (screen capture didn't work, sorry) I count 8 USBHubs, and only 7 Enhanced Host Controllers, with an 8th listing "unknown device". There are only 3 USB ports on the outside of the computer, so where are the other 5, inside? Lot's of other ports of various kinds. I know nothing about such stuff, just where to find the list. The warning pop-up will say a USB device has malfunctioned and is not recognized by the computer. Obviously, am cancelling my appointment with him this morning. Would appreciate any help I can get here on the board.


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#3
May 14, 2014 at 12:26:17
For now I'd assume the 'unknown device' is the problem so it may be a driver issue. Device manager will also see card readers as USB devices so check that those work, if you have any. Check the HP support page for your model for any driver updates--USB or chipset updates in particular.

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#4
May 14, 2014 at 12:55:24
Will work on this tonight. So am I understanding that each port has a separate (though possibly the same) driver? A couple of weeks ago, I tried to do a quick check for driver updates, but seems like HP just sent me to a place where I could pay to download driver-update software. Need to spend more time I guess. Thanks, will LYK what happens. I'll dig out a card reader just to check, also.

message edited by IslanderBI


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#5
May 14, 2014 at 14:10:44
"HP HDX"

What is the EXACT model please?


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#6
May 14, 2014 at 18:21:21
I was thinking of an on-board card reader, not one you'd add to a USB port. I know in all the desktops that have them they are just connected to internal USB pin-outs. I assume the same is true for any laptop that may have them. I mention it because it's not something you might think would be associated with a USB port error.

message edited by DAVEINCAPS


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#7
May 14, 2014 at 20:34:39
HP HDX16 Notebook PC, stock except for a replacement hard drive (last year), 7200RPM Scorpio Black I think? 750GB

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#8
May 14, 2014 at 20:38:06
Ah, yes, there is one SD card reader. I've used it a number of times recently, it seems to be OK. Would it work if there was a driver issue with it? Talked more with computer repair guy today, he said the USB port he ID'd as defective worked when he first put a stick in it, but then quit. I know this computer is out there age-wise, but it's been such a good one, I hate to give it up.

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#9
May 14, 2014 at 20:45:25
"HP HDX16 Notebook PC"
thanks, is that 32 or 64-bit?

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#10
May 15, 2014 at 08:57:03
64-bit running Vista. Sorry, thought that was listed when I registered here.

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#11
May 15, 2014 at 15:51:24
"but seems like HP just sent me to a place where I could pay"
That is not normal, they are all free.

"64-bit"
Thanks.
Here is the page for your model. Scroll down to > Select a download below
http://h10025.www1.hp.com/ewfrf/wc/...
Updating programs and drivers
http://h10032.www1.hp.com/ctg/Manua...

You may be better off using one of these methods.

Use HP Support Assistant to Find Updates Automatically (Windows)
http://h10025.www1.hp.com/ewfrf/wc/...

NOTE: You can install the latest version of HP Support Assistant from the HP Support Assistant site (in English).
http://h18021.www1.hp.com/helpandsu...



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#12
May 15, 2014 at 19:55:13
Thanks you for all the links! Will work on this and get back.

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#13
May 15, 2014 at 23:03:11
I just noticed you described the error message ". . . there is a warning each time the computer comes on citing the malfunctioning USB device." Does that mean the error shows on the posting screen before windows starts to load? If so it is a hardware problem and there's not a fix within windows. Go into cmos/bios setup and see if the USB ports are in some way configurable. You might configure the settings as 'bios defaults'.

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#14
May 16, 2014 at 20:55:37
No, sorry if that was confusing. After Windows loads (or comes out of sleep, which I use often), a notice shows up in lower right-hand corner in a white box indicating a USB device that the computer doesn't recognize. If I go to Device Manager, there is an "Unknown Device" listed (8 USB Universal Host Controllers, then Unknown Device, then 8 Root Hubs). Sorry to say, I'm probably not savvy enough to mess with cmos/bios setup stuff. Off now to check out the links Johnw put up for me. Appreciate all efforts.

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#15
May 16, 2014 at 21:44:22
John, I finally remembered where the exact model was listed, and it is found on the following page: http://h10025.www1.hp.com/ewfrf/wc/...
(HDX X16T-1200). Haven't found any drivers for USB yet, the chipset driver was released a couple years before I got the laptop, so I should be good there, yes??

I found an HP program that show me all the system information, and I looked at the Installed Drivers section. I don't know if this even matters, but there are only 6 Host Controller drivers listed. Numbers 2939 and 293A are listed in Device Manager, but not in the System Information pulled up by the HP program.

Also, I downloaded the Active Support Library, it installed, but is nowhere to be found so haven't been able to actually use it.


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#16
May 16, 2014 at 21:57:25
OK then, it's not an obvious hardware fault. From the first link in Johnw's # 11 I noticed there's a driver download for 'USB digital/analog TV tuner' and says it 'Enables support of the TV tuner's internal infrared (IR) receiver'. If your laptop has that feature that might be the 'unknown device'.

You could also install the chipset driver update.

Or, supposing the drivers are there but the problem is with windows configuring the hardware, sometimes it works to delete the item from device manager, reboot and let windows reconfigure it.


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#17
May 16, 2014 at 22:01:12
Our posts overlapped. The support page for the exact model you just listed also showed the same download. It's under 'Driver - keyboard, mouse and input devices'.

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#18
May 16, 2014 at 22:49:50
Ah, there is a remote! Always thought of it as a music gizmo, but never used it. I will try that driver. A question -- is this the kind of problem that can result from accidentally removing a stick or card without first "stopping" it? I know I did that once. Thanks.

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#19
May 16, 2014 at 23:17:12
The 'safely remove' procedure is usually to make sure the computer is not still reading or writing to the USB device. Sometimes if it's removed too early the device can be damaged but I doubt if the computer or port itself is damaged from that. But it's something I don't like to chance. I try not to remove any USB devices until I turn off the computer--just to make sure.

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#20
May 18, 2014 at 16:16:51
I just uninstalled the unknown device, and will reboot. Question though: Is the fingerprint reader also a USB device? I don't use it any longer, and the driver is probably outdated, as I don't think it was updated when the new hard-drive was installed awhile back.

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#21
May 18, 2014 at 19:38:39
I'm not familiar with the features that laptop has but my guess would be yes, it is a USB device.

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#22
May 18, 2014 at 21:15:26
Report.... the Unrecognized Device re-appeared after shut down and boot up. I found the fingerprint reader listed under Personal Identification Devices, location is Port_#0001.Hub_#0005. Am I guessing correctly that is not a USB?

Sorry this is dragging on for so long. I'm not taking the machine back to the computer guy, I just have a gut feeling he's not being up-front about his work. Would really like to solve it here at home. thanks for helping!


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#23
May 18, 2014 at 21:33:16
No need to guess.

port_#0001.hub_#0005 hp HDX16 Notebook PC
http://goo.gl/98HSKF

Scroll down to Solution.
http://goo.gl/iLo8zV

message edited by Johnw


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