Behavior erratic mouse/Touchpad on Inspiron 15 5447

I had my laptop for a little over 4 months. I mainly use a wireless mouse with him... and every so often the mouse will have a mind of your own. I can be typing or even try to use the mouse and it will start to jump around on the screen itself... by selecting things... even of switching/Mobile windows as if buttons are pressed as well. At first I thought that maybe it was interference with the touchpad... so I tried both disable touchpad when external mouse is connected... and disable the touchpad altogether and the problem persists. So I thought that maybe the mouse is the problem, so at some point when he wents nuts on me, I turned it off and opted for the touchpad... but the erratic behavior continues. The only thing I can do about it is to restart... and then things are usually fine for several days before the question starts again. Any thoughts on what the problem maybe, or troubleshooting tips?


It worked - DELL has a terrible touchpad - there is a hardware ONLY problem affecting the series 3000, 4000, 5000 and 7000.  I bought a protective screen of the dollar for a dollar store, it worked where all software solutions had failed.

  • Posted byalpha-amandine

    Answers verified
    Verified by pelosap

    Hello world!

    Like you I had the same problems touchpad. At first, I thought it was ESD and troubleshoot-made for a few days. Finally, I concluded that he had nothing to do with the EDD and passed questions possible pilot. I installed every driver package I could find, modified, off driver signature in order to install OEM drivers, used Windows 7, 8, 8.1, Ubuntu etc... but in vain.

    Early on, some kind of physical problem seems to be the most logical. The question was just what! I couldn't believe that synaptics could do such an aweful touchpad which was incapable of actually at work. I did support arguing that the question must be caused by something small. During my last clean install of Windows 8.1 I noticed that the default windows caused the touchpad driver is EXTREMELY sensitive. You will notice that once you install the latest driver from Dell the cursor movement calms down considerably. The touchpad is still extremely sensitive, the driver is just take the raw input all that and generalizing it in a cursor, easier to manage. Conclusion, the touchpad is too sensitive.

    I compared this premise with my previous experiences and found much support each other. My touchpad would typically be panic after a lot of 2-finger scroll or a large number of movements of gesture.  Indeed, it would stop work entirely if I blew warm breath on her. Conclusion, I need to desensitize the touchpad on and protect... but how!

In my first attempt, I simply took the touchpad transparent and entirely covered with packing tape. Don't expect anything I ran my finger on it and revealed that the movement of the cursor is estimated much more controllable. I used it for 30 minutes like this with only a few minor problems. (My touchpad STILL freaks out in the first 15 minutes, so for me it was a big deal!) I asked a little more layers of Ribbon downwards and the feature kept getting better and better. Since I was best performance with several layers of tape and because the transparent packing tape is not look glued to your laptop I wanted to find a better solution. I needed a plastic resistant thick that I would stick to the surface of the touchpad and has no need of me to use many of the layers. Conclusion, use plastifieuses 3 m plastic.

On this second attempt, I disassembled the laptop and removed the touchpad of the palm rest area. I used a tampon Magic Eraser with a little water and very little SOAP to clean the surface of the touchpad. After that it was clean and dry I cut an oversized square piece of plastic lamination and placed the touchpad upside on the sticky side of the plastic. I then took a razor and carefully trimmed the excess by tracing around the edge of the touchpad. The result was a piece perfectly sized plastic on the top of the touchpad. I reinstalled the touchpad in the palmrest and reassembled the computer. (Please note that there is some tape of ground wire to the back of the tablet that should be reapplied during installation.)

I use it like this for 3 days now with ZERO problems! I hope that Dell takes knowledge from this post and comes up with a real solution. The black surface of the touchpad is itself just plastic glued on the circuit of keys using an adhesive. It seems that the simple solution would be for them to replace it with a more robust piece more thick. One thing I noticed is that the 3 m plastic is tougher than the original surface of the touchpad which makes it difficult to slide your finger over it. When I started my finger continued to jump on the touchpad which caused the cursor to jump around, however after a few hours he smoothed out nicely. You can have better luck using a different plastic as a screen protector of mobile phone since it was designed to have the fingers touch.

in any case, I really hope that this helped you guys. I was just as grumpy as you on this subject and I still think that Dell OFFICIALLY must do something about this problem! (DELL TAKE NOTE!) In the meantime, I hope this allows you to you guys and running and able to enjoy your laptop once more! Good luck!

Tags: Dell Laptop

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