HP Forum Archive 21

[ Return to Index | Top of Index ]

OT: cursor randomly jumping aroud on laptop Message #1 Posted by bill platt on 26 Mar 2012, 9:12 p.m. Has anyone else been plagued by thhis sort of bizarre behavior of a lpatom ebefor? It is driving me crazy.

Re: OT: cursor randomly jumping aroud on laptop Message #2 Posted by Namir on 26 Mar 2012, 10:47 p.m., in response to message #1 by bill platt Yes ... many years ago I was using a wireless mouse and it did that! That's why I used corded mice for many years ... until recently. Namir

Re: OT: cursor randomly jumping aroud on laptop Message #3 Posted by M. Joury on 26 Mar 2012, 11:02 p.m., in response to message #1 by bill platt Internal mouse? I have had that problem with internal mice going bad. But I would say that in my case it was more of a drift than jumping around. Would work fine with an external mouse. If it is being caused by accidental contact some drivers have settings to correct for this (to some extent). Also if you have a laptop with both a touchpad and a trackpoint such as some Dell's and HP's (and probably others) try disabling one of the two devices and see if that helps. Cheers, -Marwan Edited: 26 Mar 2012, 11:02 p.m.

Re: OT: cursor randomly jumping aroud on laptop Message #4 Posted by db (martinez, ca.) on 27 Mar 2012, 12:47 a.m., in response to message #1 by bill platt lately, and only sometimes, my wireless mouse will move up & down (away/toward) achingly slow but side to side it will work fine. banging it on the desk seems to help.

Re: OT: cursor randomly jumping aroud on laptop Message #5 Posted by Marcus von Cube, Germany on 27 Mar 2012, 3:28 a.m., in response to message #1 by bill platt I guess you are placing your palms on the touch pad. Look for an option to (temporarily) suppress touch pad input while typing.

Re: OT: cursor randomly jumping aroud on laptop Message #6 Posted by Bart (UK) on 27 Mar 2012, 3:29 a.m., in response to message #1 by bill platt Yes, but mine is just thumbs on touchpad when typing :-)

Re: OT: cursor randomly jumping aroud on laptop Message #7 Posted by Mark Storkamp on 28 Mar 2012, 9:53 a.m., in response to message #1 by bill platt Historically a mouse sends 3 bytes to the computer, 1) a signed value of how much it has moved in X 2) a signed value of how much it has moved in Y 3) 8 flags for whether any button is pushed or not. There is no handshaking or header information to indicate the start of a 3 byte packet. If the computer and mouse get out of sync then the cursor will randomly jump all over the screen. The Chips & Technologies BIOS was the first one I'm aware of to address this by counting the time between each byte and trying to re-sync. I still have a computer with Windows XP and an old mouse that occasionally does that, but it almost immediately re-syncs, all you see is that the mouse makes a sudden jump up into the corner of the screen. It's possible you are seeing something related to that, and it could be between the touchpad and the mouse emulator circuitry where it was not properly dealt with.

[ Return to Index | Top of Index ]

Go back to the main exhibit hall