Hi, we've received a bug report about Thinkpad TrackPoint (ALPS DualPoint Stick) on 6.2 kernel: https://bugzilla.opensuse.org/show_bug.cgi?id=1209805 The device reports the wrong values as the movements, e.g. sometimes a value such as 255, 254 or -255 is returned while usually it should be a smaller value like -1 or 2. The evtest on 6.2.x kernel shows the wrong values like: Event: time 1680037542.898747, type 2 (EV_REL), code 0 (REL_X), value 255 Event: time 1680037542.898747, -------------- SYN_REPORT ------------ Event: time 1680037543.145196, type 2 (EV_REL), code 0 (REL_X), value 1 Event: time 1680037543.145196, -------------- SYN_REPORT ------------ Event: time 1680037543.175087, type 2 (EV_REL), code 1 (REL_Y), value -255 Event: time 1680037543.175087, -------------- SYN_REPORT ------------ Event: time 1680037543.185421, type 2 (EV_REL), code 0 (REL_X), value 1 Event: time 1680037543.185421, type 2 (EV_REL), code 1 (REL_Y), value -255 Event: time 1680037543.185421, -------------- SYN_REPORT ------------ while 6.1.x kernel shows the correct values like: Event: time 1680037386.318058, type 2 (EV_REL), code 0 (REL_X), value -1 Event: time 1680037386.318058, type 2 (EV_REL), code 1 (REL_Y), value -1 Event: time 1680037386.318058, -------------- SYN_REPORT ------------ Event: time 1680037386.328087, type 2 (EV_REL), code 0 (REL_X), value -1 Event: time 1680037386.328087, type 2 (EV_REL), code 1 (REL_Y), value -1 Event: time 1680037386.328087, -------------- SYN_REPORT ------------ Event: time 1680037386.338046, type 2 (EV_REL), code 0 (REL_X), value -1 Event: time 1680037386.338046, type 2 (EV_REL), code 1 (REL_Y), value -2 Event: time 1680037386.338046, -------------- SYN_REPORT ------------ I couldn't see any relevant changes in alps.c between those versions, so this is likely a breakage in a lower layer. Could you guys take a look? Thanks! Takashi
