Question about Acer TravelMate 5720-6462 Notebook

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Skype? message usb root hub 2 ports. unknown device. device attached to this computer has malfunctioned, windows does not recognise it. i have no devices attached to my computer through usb. i cannot

I have to windows 7 proffesional. everytime i try to connect to my friend through skype i can video call and it rings then everything freezes and i have to end the call. i retry video calling but the button has faded so cant recall. i then have the above problem message. i also get a message saying my crystal eyecamera is not found.

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  • Expert
  • 250 Answers

These optimizing tips might help you.

  • Update Skype
  • From Device Manager Scan for new hardware changes
  • OR Simply uninstall the USB root hub from device manager and restart the system.
  • Update the drivers
  • Fix windows internal errors
If problem still occurs then use system utility tool Reginout.

Posted on Jan 17, 2013

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  • Acer Master
  • 7,627 Answers

Is your Skype version up-to-date? Has this just started with a upgrade? You may try another, older version. You can find other versions here: http://www.filehippo.com/download_skype/

Posted on Jan 16, 2013

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

falseadress
  • 45 Answers

SOURCE: Aspire 3610 USB ports

I think you might have a loose cononection for the data ports. Try putting a little bit of force on the usb device. Up, down left right. NOT ALOT. If it starts working when force is used, i tihnk you should try to take it apart and resolder the connections. If it dosen't work, uninstalling the driver and installing.

Posted on Jun 01, 2008

Tech Jenkins
  • 359 Answers

SOURCE: Missing USB controller driver

When posting driver issues, you need to specify what kind of equip you are dealing with, not just the issue. Most liekly you need to go to the manufacturs website of your motherboard or laptop and find vista drivers for it.

Posted on Jul 29, 2008

  • 1 Answer

SOURCE: power surge on hub port a usb device has exceeded

I don't know how old your system might be or how many USB controllers it has on the motherboard, but understand this...

Theoretically, one USB port can support up to 999 "daisy chained" devices.

With that said...the way a USB port is implemented on a motherboard, manufacturers enable two or four ports to be working off of one USB interface. Those ports you see on the front of your computer are most likely connected to just one USB interface on the actual motherboard and that's why you always see computers with USB ports located together in pairs.

With that in mind, you're USB ports are connected to what is referred to as a "hub"(that motherboard interface), which only outputs so much power. If one device or many devices attached to this "hub" exceed the power output of this "hub" then it will either back down to USB 1.1 speeds or it won't function at all. That is why some USB accessories require their own wall adapter, because the USB can't supply all the necessary power for it.

So one of two things has happened, either your USB port is fried or you introduced a new USB item to the "hub" that surpasses the power requirements of what your USB hub can output once you plug in your mp3 player.

You can troubleshoot by unplugging all un-necessary USB equipment and try only that port again. My assumption is that the USB hub is fine but the actual usb port you use might be damaged.

Good luck.

Posted on Mar 17, 2009

gpetti2009
  • 92 Answers

SOURCE: crystal eye webcam not found

Make sure that the usb drivers do not have conflick right click on my computer and go to propertys open the device manager and see if there are any conflick of driver unistall the camera and drivers for the camera restart the laptop ad the setup disk and follow the prompts to reinstall the drivers if you dont have a setup disk download the driver and put them on a disk ,if you install from a disk you will have less chance of conflick than you would if you just down load and install from the internet.

Posted on Mar 18, 2009

  • 64 Answers

SOURCE: Acer USB Ports - Unknown Device - Will Run Mouse but not Printer

Sumtimez ports r damaged.somtimes not.. just chek other devices..if done..thn chek RAM!! lil chance tht u hv lost ur laptop!

Posted on Nov 05, 2009

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1 Answer

How many USB ports does HP 6830S laptop have?


what is a 6830S, a compaq?
post full service tag we CAN NOT GUESS WHAT YOU HAVE,
ever.
you have the wrong chip driver loaded, IM SURE.
100%
that hub is inside your chip it has its own hub. not outside hub.
SURE !
it can refr, 6 easy !
some chips support 4,6 or 8 ports
many versions of this unstated laptop only run 4 of 6
the chips other pins are EMPTY (at MOBO levels)
and you must use the correct exact HP drivers,
matching your TAG data, 100%
but you did not.
or other did not. no idea the H3ll this laptop suffered cor
what OS is is this.
we know nothing at all but USB conflicts....

this is a service tag, what is yours? we can NOT GUESS
or our answers will be dead wrong, why is this so hard. looking and learning what is there.?
tag1-mpi5zxqxean5dzxlmi1i200s-4-0_0.jpg this is a DV5 base LT. not yours only you know what yours is.

Mar 15, 2017 | HP Compaq 6830s Notebook PC

1 Answer

All External storage devices "USB Device Not Recognized"


Dear Sir,madam
You have to do some steps about fixing this problem :
1: Go to Device manager by right click on my computer then manage and then device manager.
2: Go to universal serial bus controller and export it.
3: in each USB root hub right click and then properties.
4: In properties screen select power management tab and unmark on " allow the computer to turn off this device to save power ".
5: After finishing this steps in each USB root hun restart your computer and then done

Jul 24, 2010 | Microsoft Windows XP Home Edition

2 Answers

Usb ports not recognized


Did this suddenly start to occur? Were they working before? If so, it is very simple - shut down computer, remove the battery and unplug any power source, wait a couple of minutes and reassemble and power up. Wala! I read all kinds of complicated instructions, started with the simple, and problem solved.

Feb 22, 2010 | Computers & Internet

1 Answer

Non of the 3 USB ports works anymore for unknown reason


ok, the answer is pretty simple, ur usb ports connect to a internal hub, that hub is what has malfunctioned, u need to reinstall that device's driver though the device manager on vista, go to start, type device manager in the search box, click device manager in the list, a uac query will appear, click continue, on device manager go to universal serial bus controlers and click the +, right click the usb root hub and uninstall it, repeat that for all of the usb root hubs, then restart ur pc, it will automatically reinstall the devices with a fresh driver, plug in your usb device and it should work, have a great day and happy holidays

Dec 31, 2009 | Toshiba Satellite A135-S2276 Notebook

2 Answers

Toshiba Satelite a135 s2386 USB problems...


this is the fault of your usb port, its a hardware problem, its better not to use that port, use a usb hub if you want more usb ports

Nov 11, 2008 | Toshiba Satellite A135-S2386 Notebook

1 Answer

USB device not recognized


Hi,
if it,s showing in the device manager as an exclamation mark. that means it,s found it, but can,t recognise it.
i,d suggest formatting and partitioning it, with some good software. also ensure that it,s powered via 2 usb cables to laptop, from 1 on the drive itself. some bigger hard-drives, need the extra power to drive them.

Mike @ compurepair.

Jul 25, 2008 | Western Digital 500GB My Book World...

1 Answer

Pny 1G travel drive


click on manual specify location and point it to c:\windows\system32 & check the 'search subfolders' checkbox.
Seems to be a Vista bug...
Troubleshoot USB device problems.
http://windowshelp.microsoft.com/Windows/en-US/Help/c39bd203-f729-47a4-8351-83291e13c8a81033.mspx

Please vote...... Good luck

Dec 06, 2007 | PNY Verto GeForce 6800GT, (256 MB) PCI...

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