TM 4000 problem with ps2 and usb

I discovered that when windows is checking the battery power/status the mouse pointer (using touchpad) and usb ports pause/freeze for a split second on my TM 4000. I wonder if this affects other Acer laptops as well. If you'd like to check yours you can do the following:

1. Download 'mobile meter', link is provided on this page:

http://dssc3031.ece.cmu.edu/~tamaru/mobilemeter/mobilemeterreadme-e.htm

2. Change the frequency of how often battery power is checked to about 2 seconds or less, then move the mouse pointer with touchpad around continuously and see if it freezes for a split second.

I was trying to use a usb soundcard which gave me audio dropout/pops/clicks which disappear when battery is removed or when I disable 'smart battery subsystem' in device manager.

 

can someone else verify this on their laptop, I'd really appreciate it. Want to make sure its not just my system.

 

looks like this can be fixed with a bios update, as referenced on this page:

http://xtrinsic.com/geek/articles/acpi/known-issues-26.html#touchpad-freezes



anyone knows the best way for acer to take notice? I tried calling but the agent taking my call had no clue what I was talking about. Still waiting for an email reply.