I don't know about Xenial, but with the latest Kernel from bionic- proposed (4.15.0-26-generic #28-Ubuntu x86_64), the problem still exists. I am a little confused about the tag name, would it apply to Bionic too?
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem in Ubuntu. https://bugs.launchpad.net/bugs/1779802 Title: Touchpad of ThinkPad P52 failed to work with message "lost sync at byte" Status in HWE Next: New Status in HWE Next artful series: New Status in HWE Next bionic series: New Status in linux package in Ubuntu: Incomplete Status in linux-oem package in Ubuntu: Confirmed Status in linux source package in Artful: New Status in linux-oem source package in Artful: New Status in linux source package in Bionic: New Status in linux-oem source package in Bionic: Invalid Bug description: On ThinkPad P52: touchpad failed to work and reports: [ 2.713396] input: ETPS/2 Elantech TrackPoint as /devices/platform/i8042/serio1/input/input8 [ 2.725328] input: ETPS/2 Elantech Touchpad as /devices/platform/i8042/serio1/input/input5 And lots of errors printed out: [ 19.468387] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 19.474455] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 19.480657] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 19.487665] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 19.494682] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 19.494685] psmouse serio1: issuing reconnect request [ 19.679895] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 19.686285] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 19.692642] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 19.699858] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 19.706873] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 And the middle button can not work too. [Impact] On ThinkPad P52, Elantech touchpad had sync issue then failed to work. Middle button was not enabled too. [Fix] With two upstream patches, elantech touchpad works fine with middle button. [Test Case] Touchpad moves fine, left/right/middle buttons works fine. scroll mode works fine. [Regression Potential] Very low, Just enable specific hardware support. ??? (1): Input: elantech - fix V4 report decoding for module with middle key Aaron Ma (1): Input: elantech - enable middle button of touchpads on ThinkPad P52 drivers/input/mouse/elantech.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1779802/+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
