Mouse jumps when 2nd connected monitor is off. mac mini 2012, 10.8.5
I mentioned this on another thread but will post one on my own.
My mouse skips occasionally (like every 5 secs) on my 2012 mac mini with 2 displays connected. One via HDMI the other using the thunderbolt port with a minidisplay to dvi adaptor.
If the 2nd monitor is off i get the jumps. If i turn it on mouse works ok. I swapped around the connections i.e. connect primary monitor on thunderbold and 2nd on hdmi and still same issue. When both are on mouse is ok.
Also tried with just one monitor connected and mouse works ok.
Its a bug and please apple fix it.
I use a microsoft wired mouse whuch i have for many years and has never caused me any trouble on either my win laptop or my previous imac..I tried another wired microsoft mouse and also a wireless logictech mouse. Same problem.
I also tried with mouse connected directly on the mac and on a usb hub which i normally use.
thats on 10.8.5
Mac mini, OS X Mountain Lion (10.8.5)