I have created a patch of the kernel that makes horizontal two-finger scrolling become functional on Sentelic touchpads. After applying the patch, you need to activate it in synaptics xorg driver, and then it just works.
Vertical two-finger scrolling also becomes much smoother. The kernel version on which I have worked is 3.7-rc8 (3.7-rc7 will work fine also if you apply the patch against it; other versions, I don't know) I'm going to attempt a first submission of my patch to the relevant kernel maintainer in a few minutes. I guess at best what they'll do is ask me for changes. Here's where you can help: I own a Sentelic touchpad version STL3888_C0, so I'm sure my patch works with this version of the touchpad. But, I need to know if and how it works on earlier and later versions of the touchpad. If you do own a Sentelic touchpad of an earlier or later version, you can help me, and the community by trying the following: 1) Download, compile and install kernel version 3.7-r7 or 3.7-rc8. 2) Activate horizontal two-finger scrolling in xorg through by configuring the synaptics driver with the following directive: Option "HorizTwoFingerScroll" "1" 3) Open your favorite X app, and make a status on how horizontal and vertical two-finger scrolling work for you. 4) Apply my patch, recompile and replace the psmouse.ko module by the patched version that you just compiled 5) rmmod psmouse && modprobe psmouse 6) Retry horizontal and vertical two-finger scrolling 7) Give feedback by reply to this thread You can obtain my patch through git: git clone git://sentelic.pkbd.org/sentelic.git You can also apply it as a diff against the kernel source tree versions 3.7-rc7 or 3.7-rc8. The diff can be found in the git repository, or you can download it directly by following this link: http://sentelic.pkbd.org/20121212-diffoutput.txt If there's any problem with either of these downloads, please let me know. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/311869 Title: Add driver for Sentelic Touch pad To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/311869/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
