I have a Mac Pro (2.8, jan08) and a MBP (july07)..and I'm getting some mouse lag on the Mac Pro.
I'm using a logitech mx530 (the white one made for mac) mouse...not the keyboard.
Anyway, when on the mac pro, i move the mouse around, there is a very slight delay, half a second or so, before it actually moves. This makes doing ANYTHING very annoying. The mouse uses a USB dongle that ive tried connected to all ports.
Now, when I plug in to my MBP, it works perfectly. Response time is instant.
So I thought it was the mouse.
BUT...i tried a bluetooth mouse (the one i usually use with the laptop)...and i get the same problem on the mac pro.
What could be causing this issue?
At one point I thought it could be perhaps the display...the monitor is slow....but that's unlikely as ive used 3 displays with this ... the latest one being the Dell 2408WFP monster...besides...when i try "clicking"...the time is the same. As in, i right click in on the mac pro and the MBP at the same time (diff mice) and the menus show up at the same time.
In other words, it is just the motion that is causing this. I have uninstalled and reinstalled the drivers that come with the mouse etc...same thing happens.
This is very confusing...what could this possibly be?
I tried connecting a wired mouse to the mac pro...it works fine (there MAY be a very very slight delay...but it could be my mind play tricks on me)...BUT, for sure, the wired mouse works MUCH better than the wireless one.
SO ... this has to be a mac pro problem...possibly with the USB?
This is way too obvious to be the answer. Have you checked your mouse settings in System Preferences?
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Did you try to test the mouse on the Mac Pro and MBP under the same conditions (as nearly as you can make them?)
What I read (and I don't use wireless mice at all because I always misplace them like the TV remote, I need something that stays on the computer desk) is that many wireless mice turn off power when they are just sitting there to make the batteries last longer and there is always a delay when you first move the mouse again.
Doesn't really explain why it's different between the MBP and the Mac Pro, but see if there is a power setting somewhere where you can control how long after movement stops the power is turned off. I assume the power is not turned off immediately when you stop moving the mouse, so by keeping it moving and watching the cursor response you can tell if it is this power issue or something else that causes that delay.
I would also email Logitech to see what they have to say.