smart nav 4 flickering on startup/rebootsmartnav 4-wind

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thelma37
Posts: 12
Joined: Thu Dec 23, 2004 5:00 am
Location: SA, Australia

smart nav 4 flickering on startup/rebootsmartnav 4-wind

Post by thelma37 » Fri Mar 20, 2009 12:06 am

smartnav4-windows vista sp1

flickers on startup and reboots
ave to move from usb to usb port until it works successfully

It is very annoying as i am quadriplegic and require my partner to assist

Thanks for your assistance

Regards Thelma Mackleworth

VincentG
Posts: 7728
Joined: Mon Jul 17, 2006 5:00 am
Location: Corvallis, Oregon

Re: smart nav 4 flickering on startup/rebootsmartnav 4-wind

Post by VincentG » Fri Mar 20, 2009 8:58 am

flickers?

So it doesn't detect, until the device is moved to a different USB port?

Have you tried turn off any kind of power save feature for your USB ports?

In the "Device Manager" you can right click the "USB Root Hub"(s), that show, and then select properties. On the power management tab, uncheck the box that allows the computer to turn off the USB port to save power (i.e. uncheck the box). Sometimes that has an impact on the connectivity of the devices.

thelma37
Posts: 12
Joined: Thu Dec 23, 2004 5:00 am
Location: SA, Australia

Re: smart nav 4 flickering on startup/rebootsmartnav 4-wind

Post by thelma37 » Fri Mar 20, 2009 10:54 pm

Checked all usb hubs-all unchkd

Did not fix the problem

Regards Thelma Mackleworth

dkehler
Posts: 72
Joined: Thu Dec 07, 2006 1:34 pm

Re: smart nav 4 flickering on startup/rebootsmartnav 4-wind

Post by dkehler » Sat Mar 21, 2009 6:52 pm

I have had a similar problem with the SmartNav 4 since I got it months ago. No resolution as of yet. I have to get someone to unplug the USB cable from the computer and then plug it back in after a reboot. I am unable to do it myself, so it is a very big pain, but I don't reboot that often, so I live with it.

VincentG
Posts: 7728
Joined: Mon Jul 17, 2006 5:00 am
Location: Corvallis, Oregon

Re: smart nav 4 flickering on startup/rebootsmartnav 4-wind

Post by VincentG » Mon Mar 23, 2009 10:49 am

Connected directly to the PC, or using a hub?

What version of Windows are you using?

What type of system?

thelma37
Posts: 12
Joined: Thu Dec 23, 2004 5:00 am
Location: SA, Australia

Re: smart nav 4 flickering on startup/rebootsmartnav 4-wind

Post by thelma37 » Mon Mar 23, 2009 9:18 pm

direct into pc & into usb hub-same resultOperating System System Model
Windows Vista Ultimate Service Pack 1 (build 6001) ASUSTeK Computer Inc. G71V 1.0
System Serial Number: NF1S8A64730002
Asset Tag: ATN12345678901234567
Chassis Serial Number: CSN12345678901234567
Enclosure Type: Notebook
Processor a Main Circuit Board b
2.53 gigahertz Intel Core2 Extreme Q9300
64 kilobyte primary memory cache Board: ASUSTeK Computer Inc. G71V 1.0
Bus Clock: 267 megahertz
BIOS: American Megatrends Inc. 209.T04 10/21/2008
regards thelma

VincentG
Posts: 7728
Joined: Mon Jul 17, 2006 5:00 am
Location: Corvallis, Oregon

Re: smart nav 4 flickering on startup/rebootsmartnav 4-wind

Post by VincentG » Tue Mar 24, 2009 1:27 pm

Make sure there are no power saving features on the USB ports, in the systemn bios.

Hub have it's own power supply?

PKosunen
Posts: 7
Joined: Wed Jul 29, 2009 10:09 am

Re: smart nav 4 flickering on startup/rebootsmartnav 4-wind

Post by PKosunen » Wed Jul 29, 2009 10:26 am

Same problem here, Windows 7 x64, Asus P5Q PRO mb, 4GB memory. With or without usb hub, after unplug & plug works ok.

Power management disabled from Win7, not found from BIOS.

VincentG
Posts: 7728
Joined: Mon Jul 17, 2006 5:00 am
Location: Corvallis, Oregon

Re: smart nav 4 flickering on startup/rebootsmartnav 4-wind

Post by VincentG » Wed Jul 29, 2009 11:24 am

Does the hub you have, use an external AC power adaptor?

PKosunen
Posts: 7
Joined: Wed Jul 29, 2009 10:09 am

Re: smart nav 4 flickering on startup/rebootsmartnav 4-wind

Post by PKosunen » Thu Jul 30, 2009 1:16 am

Hub is in display (Lenovo L220x), so i think it's powered.

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