On Tue, Oct 04, 2011 at 05:11:13AM -0000, pauljohn32 wrote: > Greetings. > > do you get accidental "grabs" as you try to move the cursor? I never > noticed this in the psmouse dkms patch version 0.2, but in 0.9, it > happens often. Moving the cursor toward top with a few finger brushes > does not always select a region, but sometimes it does. > > Is that likely related to this weird thing that happens sometimes. I > remove hands from typing, lifting them off the laptop entirely. WHen I > start typing again, the cursor is in an entirely different spot. It is > as if the protection from palm brushes had failed, but in a worse than > usual way.
I haven't seen accidental grabs. The cursor jumping is probably a result of the multitouch support. If your palm is detected as multiple touches, which wouldn't be surprising based on my observations, then it could be that the absolute position reported by the touchpad jumps as your palm looses contact. You can probably produce the same behavior by placing two fingers on the touchpad and then lifting one of them (it won't happen every time, but if you do it repeatedly you should see the cursor jump). If you can consistently reproduce the accidently grabs, it would be useful if you could capture some data in a virtual terminal. First run 'sudo dmesg -c > /dev/null' to clear out the kernel log, then run echo 1 | sudo tee /sys/module/psmouse/parameters/alps_dump_packets Next start capturing the touchpad events to a file using input-events (I've described this several times already on this bug, so I won't repeat it again here). Do the actions that trigger the grabs, press Ctrl-C to stop input-events, then run 'dmesg > dmesg-grabs.txt'. Attach the input-events log and dmesg-grabs.txt here so I can take a look. Thanks! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to 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 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
