hi, i have had a problem for a while now and i am not really sure why.
My problem is using the brush tool in Photoshop, while i am using it, it is fine, there are no problems but when i unclick to stop drawing on my trackpad and try to to scroll using two fingers on my trackpad nothing happens, my artwork doesn't move until i them command click back into the photoshop window, it then goes crazy and does all of the scrolling i tried to do before i command clicked back in.
The same sort of thing is happening with a lot of the other tools, when i use the spot healing brush the area selected stays the dark grey colour until i command click back into photoshop then it will heal the area.
The lasso tool shows the selection but does not start the marching ants until i command click again. The polygon lasso tool lags behind clicks, for example, when i click nothing happens, i then click again and nothing will happen, when i click for the third time the first two dots then connect, when i click again the next dots will connect but will never connect to the last dot until i click i join the shape up and click once more, which then makes the shape disappear.
I am having the same sort of problem with the clone stamp tool, the history brush, the eraser, the blur, sharpen, smudge, dodge, burn, sponge tools, i guess any tool that has a brush size. and all of the lasso tools. All of the other tools work fine to my knowledge.
I think it has something to do with apples track pad, today i tried using a mouse and it worked fine, i could draw a line and then scroll with the little ball in the apple mouse and it worked fine, but when i drew a line on my trackpad then tried to scroll with the mouse it didn't do anything until i command clicked. i then tried to click with the mouse and use the trackpad to scroll and that also worked fine.
Im currently using photoshop CC 2014 but i also had these issues in photoshop CC and i am pretty sure in photoshop CS6.
I am using a macbook pro retina 15 these are the specs
MacBook Pro (Retina, 15-inch, Late 2013)
Processor 2 GHz Intel Core i7
Memory 8 GB 1600 MHz DDR3
Graphics Intel Iris Pro 1536 MB
i also had the same problem with my 2012 Macbook pro 15.
i have searched for an answer to this but i can't seem to find anything on the internet, i had uninstalled and reinstalled photoshop, i have reset all of the tool preferences, and deleted all of photoshops preferences when that didn't do anything.
any help would be very much appreciated
I'd start by checking the drivers for the trackpad are up to date if there are such things on a Mac.
no luck on updating drivers for the trackpad? any other suggestions ?