** Description changed: 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(-)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1779802 Title: Touchpad of ThinkPad P52 failed to work with message "lost sync at byte" To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1779802/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
