Jump to content
Posted 30 January 2014 - 06:42 PM
Posted 31 January 2014 - 05:18 AM
Same problem when running from a Live CD/USB?
A Live CD/DVD or USB flash drive contains a complete bootable computer operating system (OS). When you boot a computer from it, the OS loads into, and then runs from memory instead of a hard drive. This allows you to run an OS without installing it or making any changes to a computer's current configuration.
To create one, download an ISO file containing the OS you want to use, (such as Ubuntu, Slax or Zorin), then use something like ISO Recorder to burn it to a CD/DVD or USB key.
Now boot your computer from this disc/key and your computer will be running that OS instead of the one on its hard drive.
When you're done, simply reboot your PC from the hard drive.
Posted 31 January 2014 - 06:46 AM
I have run into this issue before with the touchpad as well.
I have to concur with SpywareDoctor on his use of a LiveCD. Use this for some time to duplicate the issue and/or possibly rule out hardware.
In all cases, I have had it has been driver related and remedied with removal and cleanup.
Here is what I have done....
1. Find where the drivers are located on your computer (directory or driver name - i.e. something.dll) - you will need this later.
2. Use a remove tool like REVO Uninstaller to remove the tool and then scan for left-overs.
3. Manually search the registry for what you found in #1 above removing everything you find related to synaptics, etc. (I would suggest a registry backup before you do this - just in case) (also have a USB mouse plugged in as your pad may stop working).
4. You may want to do this before you start (optional). You may have to try both of these, starting from #1 again. Go to your manufacturers website (DELL in your case) and download the driver. Also visit the OEM manufacturers site (ALP or Synaptics - in your case) and download that version. Put these on your desktop so they are handy.
5. After #1-3 reboot and perhaps run a CCleaner registry cleanup (not sure if this did anything - but it did find stuff related to synaptics when I did it - and it made me feel good.
Now flip a quarter and install one of the drivers you downloaded. Reboot.
Go into the mouse settings and set your configuration and TURN OFF anything you don't use (gestures, auto-update, etc.).
(I would also make sure you clean you pad (I had one user that had some sort of almost invisible "gook" on the pad which caused all sorts of issue). Cleaned up with some light use of rubbing alcohol and problem went away.
This has worked for me (we do a lot of DELL Latitude and Precision machines). I have not seen this problem lately (past 6-12 months - meaning in newer machines) but use to run into this quite a bit with older machines.
I hope this helps. Would love to know if you find something else that works for you.
Posted 01 February 2014 - 08:13 PM
Hi Spyware Doctor and John Dubinsky,
Thank you both for your help! I just remembered a simple test which I hadn't done yet. You may be interested in seeing the results below. John, I tried cleaning the touch pad with alcohol, but there didn't seem to be much of anything to remove, i.e. very little dirt, gunk, etc.
External keyboard and mouse tests:
1. Touch pad and built-in keyboard: Check the touch pad to see if this freezes it? YES, using the keyboard freezes the touch pad pointer!
2. Touch pad and USB keyboard: Check to see if the same problem with touch pad freezing exists when using an external USB keyboard? No, the touch pad pointer does not freeze even when using the "O" key. Does it freeze with the USB keyboard plugged in and using the built-in keyboard? Yes, using the "O" key.
3. USB mouse: With the Synaptics config to disable touch pad when external mouse is detected, the touch pad is disabled, but the external USB mouse is not affected by any amount of keyboarding - i.e. the external mouse does not freeze. Test with touch pad activated at the same time as external mouse (Synaptics config): Using the external mouse has no influence on the touch pad - i.e. touch pad does not freeze. However, using built-in keyboard with USB mouse connected causes touch pad pointer to freeze which indicates that the something between the built-in keyboard and touch pad is causing the problem.
4. USB mouse and keyboard: Test to check for freezing using external mouse and keyboard? No freezing! Test built-in keyboard and touch pad with external USB mouse and keyboard connected? The letter "O" test freezes the touch pad when pressing the key repeatedly, but not when the key is held down for a few moments and released?! Test built-in keyboard to check other keys which cause freezing:
- yjbm all cause freezing when pressed repeatedly but not when held down.
- uikl all cause freezing both pressing repeatedly and holding the key down
- n causes freezing sometimes when pressing repeatedly but not when holding down
- qwertopasdfghzxcv cause no effect whatsoever.
The probable conclusion of this test is that the keyboard is starting to have problems and is causing the touch pad freezing problem. Why there would be any connection whatsoever between the keyboard and touch pad pointer freezing remains a mystery.
But, when the external USB keyboard is used, the touch pad pointer functions normally! Using the external USB mouse also presents no problems. Using the external USB (or PS/2) keyboard with no problems indicates that the built-in keyboard is faulty especially because there are several keys which cause the problem. This test indicates the same result as changing the built-in keyboard, i.e. substitution. Using the external USB mouse indicates the same in relation to the built-in touch pad.
But, while using the external USB keyboard the touch pad presented no problems. Therefore, it is safe to conclude that the problem is not software related (i.e. drivers, etc.) a nor is it a problem related to hardware such as the motherboard or any keyboard/touch pad related hardware, because when the external keyboard or mouse are used the touch pad presents no problem.
Also, the use of an external keyboard uses the same hardware as the built-in keyboard, but did not present any problem. It would probably be safe to say that substituting the built-in keyboard would resolve its problem and probably the touch pad freezing problem as well!
Posted 28 February 2014 - 12:04 PM
Hi all, I can't remember right now on which forum it was that someone said they had resolved their problem with keyboard/touch pad freezing issue? Quite simply, the person said that he removed his keyboard, gave it a blast with the aerosol kind of compressed air, and it was as simple as that! I was a little skeptical but anything's worth a try! So, I removed my keyboard and lacking the aerosol which couldn't find anywhere, used my own breath to blow the thing out getting rid of accumulated dust which also causes heat accumulation (another suggested cause). I wasn't in the mood for trying to dismantle the keyboard as it is a sealed unit, but guess what. When I re-installed the keyboard I tried everything I could without success to make the touch pad freeze and up to now it will not freeze no matter what I do (i.e. hitting the O key always made it freeze before 100% of the time even without actually typing)! The keyboard really seems to have been the problem, because it was becoming harder to type with keys I hit not responding the first time, fast repetition sometimes worked and sometimes just dragged along often having to hit the key repeatedly to move one letter at a time, using the keyboard was also altering the volume and causing my CD/DVD drive to eject nothing?! Anyway, to cut a long story short, after removing, blowing the dust out and re-installing my keyboard, I seem to be up and running with the keyboard working the way it used to before the problems appeared, fast typing, fast repeeeeeeeeeeeeeeeeeeeeeeeat, etc. I'm not sure how much blowing the dust out helped, but maybe the flat cable of the keyboard had somehow dislodged itself and was causing the problem which after re-installing was re-seated??? Anyway, whatever helped it seems to be working fine now! Thanks for all your help! Regards, John.
Posted 28 February 2014 - 01:24 PM
BTW, many brand new laptop replacement keyboards run less than $20. Think I paid $13.50 or so, including shipping, for the last one I ordered for a Acer Aspire laptop.
Posted 12 March 2014 - 08:25 PM
Thanks for the keyboard tip ... I have a usb keyboard plugged into my Acer because the laptop keyboard doesn't seem to work...OTOH ... the machine IS about 5 years old ... who knows what a cleaning might accomplish?
Thanks for the head's up, will definitely have to try this out when I get a chance!!!
0 members, 3 guests, 0 anonymous users