On Thu, Sep 22, 2011 at 08:30:45PM -0000, César Izurieta wrote: > Seth, I've attached dmesg-stray-click.txt after following your > instructions. Two middle clicks where fired during the test. I used two > fingers and made an horizontal scroll for about one second.
What I see in the logs indicates that when you were scrolling your fingers you get a couple of data points sometimes where the touchpad is telling the driver that there was only a single contact on the touchpad. So basically you end up with the following sequence for the number of contact points being reported: 1 -> 2 -> 1 -> 2 -> 1 -> 2 -> 0 I have a hard time understanding how any of that is getting interpreted as a two-finger tap, but that's all I see that could conceivably be causing the events. I've been trying to reproduce it on the hardware I have, but I can't. Well, I guess there is one other thing. If something in the packet is getting misinterpreted as a button then I guess the driver could literally be sending a button event. To check this, switch to a virtual terminal and identify your touchpad in lsinput, then run sudo input-events <devnr> | grep BTN_MIDDLE While this is running, do the motions on the touchpad that are giving you middle clicks. If you see any output then the driver is interpreting some of the data in the packets incorrectly. If it doesn't generate output, and the driver is reporting the data from the hardware correctly, then I don't know what can be done. I'll see if I can find more out about how the synaptics client is identifying two finger taps. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in Ubuntu. https://bugs.launchpad.net/bugs/550625 Title: Alps touchpad is recognized but synaptics clients and scrolling do not work To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/550625/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
