Computer Hope

Hardware => Hardware => Topic started by: MJae on May 16, 2011, 05:15:32 PM

Title: USB port works awhile after startup then stops working completely
Post by: MJae on May 16, 2011, 05:15:32 PM

I've recently purchased a toshiba portege r835 and for the last couple days I've been having problems with one of my USB ports. Right after I startup my computer, it works fine for a few minutes but then it stops working completely until I restart my computer. Can anybody help me with this?

Title: Re: USB port works awhile after startup then stops working completely
Post by: Computer_Commando on May 16, 2011, 05:16:48 PM

What is connected to the USB port?

Title: Re: USB port works awhile after startup then stops working completely
Post by: MJae on May 16, 2011, 05:17:43 PM

Usually my iphone but I've also tried it with my wireless mouse and a flash drive but the results are the same.

Title: Re: USB port works awhile after startup then stops working completely
Post by: Computer_Commando on May 16, 2011, 05:21:35 PM

I think the USB might be going to sleep to save power.

Title: Re: USB port works awhile after startup then stops working completely
Post by: MJae on May 16, 2011, 05:24:37 PM

I was thinking that too so I checked my power plan but I didn't see anything would cause this but maybe I'm missing something which is totally possible.

Title: Re: USB port works awhile after startup then stops working completely
Post by: Computer_Commando on May 16, 2011, 05:29:51 PM

Don't know if it's the same for Win7,
Turning off a USB port's power save option on Windows XP Pro

    In Windows, click on Start > Control Panel (or Start > Settings > Control Panel).
    Double-click on System, then open the Hardware tab.
    Click Device Manager.
    Click the + at Universal Serial Bus Controllers.
    Right-click USB Root Hub and select Properties.
    Open the Power Management tab.
    Clear the checkmark from Allow the computer to turn off this device to save power.
    Click OK.
    Repeat this procedure for the USB 2.0 Hub.

Title: Re: USB port works awhile after startup then stops working completely
Post by: MJae on May 16, 2011, 05:43:55 PM

Weird, I don't have a USB 2.0 hub there. I do have a 3.0 but that's not the one that I'm having problems with. I did follow your instructions for the usb root hub though. I restarted my computer just for good measure. So far its working but its only been a few minutes. I'll reply in a few hours and tell you if its still working. Thank you for all of your help so far though!

Title: Re: USB port works awhile after startup then stops working completely
Post by: MJae on May 16, 2011, 06:23:54 PM

nope, i'm still having them problem...

Title: Re: USB port works awhile after startup then stops working completely
Post by: Computer_Commando on May 17, 2011, 01:11:04 PM

http://us.toshiba.com/computers/laptops/portege/R830/R835-P56X/
USB Ports
1-eSATA/USB (2.0) combo port with Sleep and Charge, 1-USB (3.0) port, 1-USB (2.0) port

Do not use the combo port, try one of the other two.  There must be some special settings for the combo port.

Title: Re: USB port works awhile after startup then stops working completely
Post by: MJae on May 17, 2011, 05:23:52 PM

ah no, i'm not having any problems with the combo port, its the 2.0 that i'm having trouble with

Title: Re: USB port works awhile after startup then stops working completely
Post by: MJae on May 17, 2011, 05:56:52 PM

I've finally solved the problem! I went to power settings and disabled USB selective suspend. Thank you for your help!