On Tuesday 13 March 2007 10:41, Dave Howorth wrote: > pelibali wrote: > > Hi, > > > > I have a Fujitsu Siemens "Mini RF.Mouse" wireless mouse connected to > > my laptop via its own USB dongle. First I used "normal" 1,5V AAA-type > > batteries and max. 2 weeks they were empty. Now I'm using rechargeable > > 1,2V AAAs (850mAh) and they last no longer than 10 days with 1-2 hrs > > of daily work. The system is SUSE 9.1... > > > > My question concerns the following: my brother uses the very same > > type of mouse and his lasts on the Win* platform for 2-3 _months_ > > with daily 1-2 hrs of use. We tried to exchange mice, but they > > behaviour the same, so likely no hardware is defected. How this huge > > time difference is possible? We checked also the batteries, but maybe > > the mouse background is also an important point. e.g. I use a pretty > > white and almost flat plate now, where sometimes I see my pointer > > shaking, without even touching the mouse. (This behaviour didn't > > happen on the laptop of my brother, when using _my_ mouse & > > background.) > > In the case of my brother's laptop the USB ports are at the side > > where he uses the mouse (right side), but my Acer has ports only on > > the another, left side. Could that 15cm->40cm (~3x) make such decre- > > ase in the battery life(s)? > > Did you try your brother's laptop with your mouse pad in the place where > you normally use your laptop? There's one other mechanism I can think of > that can cause mouse jitter. Some optical mice can be sensitive to > external light reflected by the mouse pad, typically from fluorescent > lights. I used to see this with old Sun mice. You could try using a > different mouse pad (e.g. dark neoprene) or changing the lighting to see > if it makes a difference. > > But you definitely need to find out why your mouse is jittering and stop > it. As Carlos said, it's using power every time it jitters. > > Cheers, Dave
This is my second reply, but I've thought of something else. The mouse is probably using Bluetooth RF, and the mouse needs feedback from the receiver so it knows where it is--i.e., it has its own receiver in it. If there is some kind of jamming, from either another Bluetooth device (that's not _supposed_ to happen) or from a baby-monitor, or some other FCC part 15 device, then your communication from the computer to the mouse and back will be spotty, and a much higher duty-cycle will be needed to get the information thru. Short of using a spectrum analyzer, the only way to verify this for yourself, (unless you know you have your own equipment that could be jamming and turn that equipment off) is to take your whole setup over to your brother, and borrow his, and put it in your place, and see what happens. --doug -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
