@ Joseph and AceLan, I can also confirm that the touchscreen stops working, but, I think I can see why. The -proposed kernel loads a different driver for the touchscreen than what is in the 'stock' kernel.
With the stock kernel, syslog reports the following: hid-multitouch 0003:06CB:0AF8.001: input,hiddev0,hidraw0: USB HID v1.11 Mouse [SYNAPTICS Synaptics Large Touch Screen] on usb-0000:00:14.0-3/input0 Also, with the stock kernel, you will see the "SYNAPTICS LARGE TOUCHSCREEN" in the list if you run 'xinput' With proposed: hid-rmi 0003:06CB:0AF8.001: input,hiddev0,hidraw0: USB HID v1.11 Mouse [SYNAPTICS Synaptics Large Touch Screen] on usb-0000:00:14.0-3/input0 And the touchscreen no longer shows up in 'xinput'. ...note that with the -proposed kernel we are using a new driver, hid- rmi, instead of hid-multitouch. Some hid rmi commits were required to make the touchpad work properly, and this is (I think) what got into the proposed kernel: 9fb6bf0 HID: rmi: introduce RMI driver for Synaptics touchpads b89f991 HID: rmi: do not stop the device at the end of probe I'm guessing that hid-rmi also wants to now control the touchscreen, which isn't correct. hid-multitouch should (from what I can tell) still be taking care of the touchscreen. There are two bugs of interest from Fedora that I think will help sort this out: https://bugzilla.redhat.com/show_bug.cgi?id=1089583 ..in that bug, there is a patch in comment 8 that might be helpful. There is also another bug opened here that takes care of some additional cleanup on the touchpad that we might need to look into: https://bugzilla.redhat.com/show_bug.cgi?id=1090161 ** Bug watch added: Red Hat Bugzilla #1089583 https://bugzilla.redhat.com/show_bug.cgi?id=1089583 ** Bug watch added: Red Hat Bugzilla #1090161 https://bugzilla.redhat.com/show_bug.cgi?id=1090161 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1305522 Title: Backport Synaptics HID touchpad driver for 14.04 Status in “linux” package in Ubuntu: Fix Released Status in “linux” source package in Trusty: Fix Committed Bug description: Synaptics just upstreamed a new set of HID touchpad driver: http://git.kernel.org/cgit/linux/kernel/git/jikos/hid.git/commit/?h=for-3.16/rmi4&id=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736 It's better we can have it in 14.04 . To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1305522/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
