Mice and Pointing Devices

[cubsrule]

Wow....the static discharge trick worked!! This was driving me nuts, Thank You!

[cocute]

Thans for my works always this solution.

[otony10]

I have a Wireless Trackball M570 & the  left click just started doing this same thing, intermittantly.  I  am a big user of the virtual / on-sccreen keyboard (for typing things like thhis reply).  As you can see this is aanoother example off whaat a pain thiis problem causes.   All thhe ddouuble  letters are  caused by tthe lleft click dbl clickinng the letteers as i am clliickkinng  on thhemm. . 

I''m thinking this Wireless Trackball M570 is about  a  yeaarr old  now - hmmm . .  (switching to the physical keyboard now so it will be easier to read) At first I thought it was the battery dying so I changed it - but it's still doing it.   I'll try tthe static electricity resolution provided here and see if that helps - (will post results for that). 

Strange how  I was just thinking & remarking to a friend how awesome my logitech products have been, and now I may have to backtrack on that. 

[pbotjer]

I am having the same problem.  After waiting three weeks for a response, Logitech wants me to ship them the faulty MX back before they send me a new one.  So, I suppose I will not have the use of a mouse while I wait around for them to send a new one.

Or I suppose I can purchase a second mouse to use while I wait.  Clearly, this will not be a Logitech mouse. 

I was surprised to see posts where users were pleased by the support offered by Logitech.  After waiting days for responses, never receiving shipping labels that were supposed to be sent and finally getting "Permission Denied" when trying to see the status of my case I could only classify Logitech's support as laughable at best.

[maksimov]

jlohnes, I registered on this website only to say 'thank you'. Thanks very much, you saved my mouse!

[Jalida]

I'm trying this capacitor thing but since I've had 9 of these mice fail in the past year (lost all the receipts except the last one so couldn't return any of them), I'll be right pissed off if it works, and right pissed off if it doesn't work.

When I think about the almost $900 that I've spent on mice with Logitech for the performance MX mice that I've bought, I just want to pull my hair out at the unreliable nature of this mouse.

Now my main question on this capacitor static "fix" is why must one plug the usb receiver into another usb port?

[steviedude2468]

jlohnes, I registered on this website only to say 'thank you'. Thanks very much, you saved my mouse!

[DavidMC]

Thank you jlohnes . Your solution worked for me. Now I can use my Performance MX again instead of the trackpad. Logitech FTW!

[mtowns]

Thanx, Thundervore, for suggesting a cause of default double-for-single click mouse dys-responsiveness.

Although I have lots of Logitech stuff mainly because I like the software to match my hardware, and Logi is both generous and compatibility oriented in its offerings, I have noticed a LOT of problems with tarnish (oxidized silver plating) on surface-mount technology switches of boards in the past few years, which, to me, is akin to a "systematic" problem with (certain paradigms of) the technology, discrete parts in particular.  Gold plating would probably be a better choice, and I have never been satisfied with my disparaging interpretation of the gold plating on the BACK of CPU chips, instead of where it count on the contacts of the connectors that integrate them.  It just looks like so much foolishness at the design level ... (sigh) ....

The Logitech guy's suggetion of "built up charge retention" as a cause seems to have helped a lot of folks, and does not sound "incompatible" to me with the phenomenon of potential semiconductive electronic performance of silver oxide.

Thanks for sharing your interpretation.  It is the one I will pursue first for cure, with my "tinkerer's" bent.  I've seen way too many of those little pop-button sub-micro switches fail because of tarnish.  (Disassemble them; reduce the tarnish with some ammonia-like chemical; grease-em up with some anti-oxidant, and reassemble 'em; and they're good for another 5 yr.!)  With such deficient design foresight on environmental stability, I think expecting the circuit engineer to have built-in a field-discharge solution is like looking for the Easter Bunny in a Public School ... if one shows up it's probably just an accident ... and is equally likely to have been thrown out as un-called-for {;-|

[mtowns]

Thank you, jlohnes, for your suggetion of "built up charge retention" by board-level circuitry of

glitchy switches.  Especially friendly, and also of some likely general utility, is your method for

achieving "discharge."  The experiences I share below on materials issues certainly do not

invalidate that approach, expecially if one considers the electronic performance of silver oxide

may be as a potentially "undefined" semiconductor.

Thundervore suggested a cause that puts a solution on a more mechanical level than soft- or

firmware, but fits my experiences of undesired double-click response to single mouse clicks.

Happy with a Marble Mouse for 4-5 yr, I've only over the past yr or so noticed it doing that more;

and I was beginning to become a little "gun shy" of software updates as possible culprits.

I haven't dissected my 3 out-of-warranty Logitech trackballs yet, but had a lot of tarnish trouble

(oxidized silver plating) from SMC switches on boards in varied equipment, from fax machines

to cellphone earbuds.  Though I don't recall paying much attention to mouse switches, I've had

to replace innumerable floppy drives (when they cost over $100) because of switch tarnish I'm

sure manufacturers mistakenly thought silver plate would prevent.  Gold plate probably would.

This is confounded by atmospherics, since my living room is hardly a cool, dry, clean lab.

I tried contact protective lubricant (bulb grease) on some car switches, but it seemed fruitless.

Reed switches might trade bulk for less circuitry than IBM's old Keytronic capacitive keyboards,

which were virtually indestructable, if clean and dry -- and that suggests opto-interrupters in ECL

for the switches, like the tracking ball and wheel use, ... but they'd add a different tech to a marble ....

Thanks again for sharing your suggestion.  I'm sure tablet takeoff lately is at least partly because

designers finally "acknowledge" the pivotal importance of HID parameters, including reliability;

and it's real nice when hardware designers also leave in some "back doors," just in case hdwe's

not all it's cracked up to be - an extra diode here and there sometimes saves a lot of trouble later,

and that can add enormous "good will" to a firm's long term bottom line.  -- Dr. Mike the Bum