[SOLVED] Macbook trackpad "has a mind of its own"

comapony · 2014-04-28 08:51:26

My macbook (4,1 late 2008 if it matters) is having issues where the cursor jitters around. This happens while I'm not touching the trackpad too. When I move the mouse, the cursor jumps back to where it started.

I think this is an X issue; I cat-ed /dev/input/eventx and used xinput -test x, and nothing looked out of order. There was no input when my fingers were off the trackpad, and it didn't seem erratic.

In the morning, I'll post a screen capture, or a log file, or something.

Last edited by comapony (2014-05-07 21:20:11)

Rexilion · 2014-04-28 13:45:35

Did you check dmesg when it occurred? Could be the driver going belony.

comapony · 2014-04-28 15:53:45

Hey, checked dmesg, it looks like nothing matches synaptic in there, the only thing that matches "mouse" is the loading of mousedev, "appletouch" matches a few things that look promising:

[    8.516068] appletouch 7-2:1.1: Geyser mode initialized.
[    8.516172] input: appletouch as /devices/pci0000:00/0000:00:1d.2/usb7/7-2/7-2:1.1/input/input15
[    8.516291] usbcore: registered new interface driver appletouch

Don't know what geyser mode is.... It appears more than once though, could this be a smoking gun?

comapony · 2014-04-30 18:43:46

Sorry it took me so long to get this done, if anyone is even watching this anymore.

https://plus.google.com/photos/10025012 … 4450248364

Rexilion · 2014-04-30 20:31:51

Messages look fine. Video looks great (except for the stuttering mouse).

Did this ever work on another distro?

comapony · 2014-05-06 05:03:21

Okay, first off: sorry for the necro-bump. I checked the mouse on anothe OS (live disk) and it worked. I also remember it working on osX before I got fed up with it. And I disabled the trackpad and tried a separate mouse, but still nothing. It's definitely not a hardware issue.

So, I guess my question is: Is this an X issue? and how do I identify the issue? I'm not too, too familiar with X, and I'd like to take something from this.

Rexilion · 2014-05-06 05:14:56

What other OS did you try?

Maybe write down the version numbers of X, the touchpad driver and the kernel. See if you can use those on Arch and try that.

comapony · 2014-05-07 20:23:54

Okay, I've made a pretty cool discovery: when I set my keymap to dvorak in my '48-keymap.conf' file, it makes the cursor wonkey. I thought it was an unclosed quote that I left, but even with that address, the only way to get it to stay still, is to remove the conf file.

Section "InputClass"
        Identifier "keyboard-all"
        Driver "evdev"
        Option "XkbLayout"      "us,us"
        Option "XkbVariant"     "dvorak-alt-intl,"
        Option "XkbOptions"     "grp:alt_shift_toggle,grp_led:scroll
EndSection

comapony · 2014-05-07 21:19:37

I think I've got it. I was missing the "MatchIsKeyboard "on"" directive in the conf file for the keyboard.

Rexilion · 2014-05-08 05:32:31

Nice job!

You probably forced the evdev driver on the touchpad, which does not work.

Arch Linux

#1 2014-04-28 08:51:26

[SOLVED] Macbook trackpad "has a mind of its own"

#2 2014-04-28 13:45:35

Re: [SOLVED] Macbook trackpad "has a mind of its own"

#3 2014-04-28 15:53:45

Re: [SOLVED] Macbook trackpad "has a mind of its own"

#4 2014-04-30 18:43:46

Re: [SOLVED] Macbook trackpad "has a mind of its own"

#5 2014-04-30 20:31:51

Re: [SOLVED] Macbook trackpad "has a mind of its own"

#6 2014-05-06 05:03:21

Re: [SOLVED] Macbook trackpad "has a mind of its own"

#7 2014-05-06 05:14:56

Re: [SOLVED] Macbook trackpad "has a mind of its own"

#8 2014-05-07 20:23:54

Re: [SOLVED] Macbook trackpad "has a mind of its own"

#9 2014-05-07 21:19:37

Re: [SOLVED] Macbook trackpad "has a mind of its own"

#10 2014-05-08 05:32:31

Re: [SOLVED] Macbook trackpad "has a mind of its own"

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