Comment 46 for bug 1506817

FWIW, I have this problem with the middle trackpoint button on a T460s.

hauke  ~  uname -a
Linux tbort 4.4.0-22-generic #39-Ubuntu SMP Thu May 5 16:53:32 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

Here's an excerpt from sudo evtest /dev/input/event6:

Event: time 1464031476.627418, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031476.627418, -------------- SYN_REPORT ------------
Event: time 1464031476.733121, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 0
Event: time 1464031476.733121, -------------- SYN_REPORT ------------
Event: time 1464031201.617512, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031477.097493, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031477.097493, -------------- SYN_REPORT ------------
Event: time 1464031477.193284, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 0
Event: time 1464031477.193284, -------------- SYN_REPORT ------------
Event: time 1464031201.617512, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031477.403549, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031477.403549, -------------- SYN_REPORT ------------
Event: time 1464031477.498914, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 0
Event: time 1464031477.498914, -------------- SYN_REPORT ------------
Event: time 1464031201.617512, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031201.617512, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031478.182503, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031478.182503, -------------- SYN_REPORT ------------
Event: time 1464031478.287124, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 0
Event: time 1464031478.287124, -------------- SYN_REPORT ------------
Event: time 1464031201.617512, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031479.629252, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031479.629252, -------------- SYN_REPORT ------------
Event: time 1464031479.754756, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 0
Event: time 1464031479.754756, -------------- SYN_REPORT ------------
Event: time 1464031201.617512, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031480.616778, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031480.616778, -------------- SYN_REPORT ------------
Event: time 1464031480.733700, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 0
Event: time 1464031480.733700, -------------- SYN_REPORT ------------
Event: time 1464031201.617512, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031481.835976, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031481.835976, -------------- SYN_REPORT ------------
Event: time 1464031481.970351, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 0
Event: time 1464031481.970351, -------------- SYN_REPORT ------------
Event: time 1464031201.617512, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031482.307006, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031482.307006, -------------- SYN_REPORT ------------
Event: time 1464031482.402378, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 0
Event: time 1464031482.402378, -------------- SYN_REPORT ------------
Event: time 1464031201.617512, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031482.584996, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031482.584996, -------------- SYN_REPORT ------------
Event: time 1464031482.709775, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 0
Event: time 1464031482.709775, -------------- SYN_REPORT ------------
Event: time 1464031201.617512, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031201.617512, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031483.035733, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031483.035733, -------------- SYN_REPORT ------------
Event: time 1464031483.131556, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 0
Event: time 1464031483.131556, -------------- SYN_REPORT ------------
Event: time 1464031201.617512, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031201.617512, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031483.284255, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1
Event: time 1464031483.284255, -------------- SYN_REPORT ------------
Event: time 1464031483.371136, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 0
Event: time 1464031483.371136, -------------- SYN_REPORT ------------
Event: time 1464031201.617512, type 1 (EV_KEY), code 274 (BTN_MIDDLE), value 1