Touchpad & mouse stopped working on samsung laptop with Win7

Dell / Inspiron 1705
August 15, 2013 at 19:48:19
Specs: Windows 7
Hi,
I have a samsung r480 laptop with Windows 7. Suddenly neither my touchpad nor an external USB mouse works. It registers I'm moving but the arrow is just not moving as I direct it; I can't control it. Also simultaneously the screens gets brighter and dimmer- not like a flickering, just a steady alternating. I didn't install anything new, nothing changed. This just happened out of nowhere. Every once in a while it goes away but not for long. Any direction would be much appreciated! Thank you!

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#1
August 15, 2013 at 23:19:49
Is it still under warranty?

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#2
August 16, 2013 at 02:01:56
Hi superjess17,

Check if the touchpad works in Safe Mode.

Restart the system and tap F8 for advance boot options. Select Safe Mode and hit enter.

If the touchpad does not work in safe mode, connect an external mouse.

If the external mouse does not work, try a different external mouse.

Also, you can try different USB ports for the external mouse.

Thanks & Regards
Manshu S
#iworkfordell


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#3
August 16, 2013 at 10:11:33
Thanks for your replies. No, it is not still under warranty. I will try safe mode and see if it works, but naturally at the moment all is working well. Also, in addition to the screen and the touchpad issue, the USB ports don't seem to work either. If you plug something in it just keeps making the sound that its disconnecting and reconnecting. I will attempt in safe mode though & report my results. Thanks again

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Related Solutions

#4
August 18, 2013 at 15:47:35
So it happened again and I rebooted in safe mode. Everything seemed to work fine. I don't know if it was just coincidence or there's something in normal mode that could be causing this?

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#5
August 20, 2013 at 06:30:07
Hi superjess17,

It can be an issue because of a third party application running in the background. Perform clean boot to isolate the issue. Refer to the link mentioned below:

http://support.microsoft.com/kb/929135

For USB port issue, refer to the link mentioned below:

http://support.microsoft.com/kb/817900

NOTE: Perform method 3 on the link.

Thanks & Regards
Manshu S
#iworkfordell


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#6
August 26, 2013 at 19:18:46
So I performed a clean boot and even with no services running except Miscrosoft services, my cursor is all over the place. I cant control it. I just wish I knew if my computer is dying or if this is something fixable...

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#7
August 28, 2013 at 22:16:18
Assuming you mean "clean boot" as a re-installation of the operating system, ensure you've installed all proper device errors.

The cursor moving all over the place could be result of the mouse's motion speed setting too high. Open up Mouse Properties (Start > Run/Search bar > type: main.cpl), go to the Pointer Options tab, and slow down the speed. You may want to disable Pointer Precision as well.

Are you experiencing the same problems you had from the opening post: screen brightness change and mouse not moving to your commands?

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Apologies if I don't respond to your reply immediately. I don't check this site daily, but you're welcome to PM me as a reminder.


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#8
August 29, 2013 at 04:04:55
It sounds like you might have some type of virus or other malware. From Safe Mode, initiate a System Restore to a date at least a week before this problem began, even if you need to click on "Show More Restore Points" (or something like that) to find one. Recently installed programs or updates may need to be redone, but your personal files are safe. Then run Malwarebytes to be sure that nothing remains of any possible infection. The reason I am recommending the system restore first is that it appears that a system file may have been corrupted to make this happen and this way you fix that first while setting the registry back before the nasty was installed, and then make sure that all of it is gone.

You have to be a little bit crazy to keep you from going insane.


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#9
August 29, 2013 at 18:02:59
Yes, still having the same problems but the thing is its quite inconsistent. Ive used the computer now for two days with no issues. As soon as it acts up I'll try the restore. I didnt reinstall the os- I booted the laptop with only microsoft services. Thanks so much for your replies!

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