Macbook touchpad cursor moving "in steps"

**attenpeter** · May 31st, 2008

Hi,

I already accidently posted a similar post in the Apple Intel Archive (I was directly linked to it and didn't realize it was an archive... sorry for that) and was suggested to search this forum, as a few people had similar issues. I couldn't find anything useful and so I thought it's a good idea to post it once again here

If I try to configure my touchpad behaviour I always notice the following no matter what I change: The cursor in mac os smoothly moves in a straigt line from one edge to the other if I drag my finger diagonally... In ubuntu, the cursor first moves right, then down, then right, then down, like drawing small steps... it's really annoying and makes navigation in a menu quite a task...

Here are some pictures to clarify:

mac os cursor movement:

Code:

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  \

ubuntu cursor movement:

Code:

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 -
  |
   -

I don't know if this is a driver or configuration issue... I used (and tried to tweak) the configuration from this link: https://help.ubuntu.com/community/Ma...ae7d325138b8cb

Anyone knows how to solve this? Or, as an alternative, anyone with a santa rosa c2d macbook (macbook3,1) who doesn't have this problem willing to post his/her xorg.conf?

cu,
peter

**ditsch** · May 31st, 2008

Hm, I am using this one on my MBP Santa Rosa (I think the touchpad is equal to those in the Macbooks):

Code:

Section "InputDevice" 
        Identifier "Synaptics Touchpad"
        Driver "synaptics"
	 Option		"SendCoreEvents"	"true"
        Option "Device" "/dev/input/touchpad"
        Option "Protocol" "auto-dev"
        Option "VertScrollDelta" "20"
        Option "HorizScrollDelta" "350"
        Option "VertTwoFingerScroll" "true"
        Option "HorizTwoFingerScroll" "true"
        Option "FastTaps" "false"
        Option "TapButton2" "3"
        Option "AccelFactor" "0.3"
        Option "SHMConfig"  "on"
EndSection

Hope this helps...

**attenpeter** · June 2nd, 2008

Hi,

I'll try this tomorrow and see if it works, although I'm quite sceptical as it is similar to my config...

cu,
peter

**attenpeter** · June 2nd, 2008

Well, unfortunately, the cursor movement still is like that...

**attenpeter** · June 4th, 2008

nobody else? At least confirmations of this problem?

**cyberdork33** · June 4th, 2008

Originally Posted by attenpeter

nobody else? At least confirmations of this problem?

search in the forum archive as I am sure that someone has reported something similar before. It seems that adjusting values in the xorg.conf tends to fix it though.