I'm using Fedora 40 with the vanilla kernel built from the 6.12-RC1 [1]. There is a regression that causes the touchpad to stop working on my Thinkpad Z16 Gen 2 (Sensil touchpad). dmesg shows this on 6.12-rc1 when filtering by `hid`: [ 0.134369] AMD-Vi: ivrs, add hid:AMDI0020, uid:\_SB.FUR0, rdevid:160 [ 0.134370] AMD-Vi: ivrs, add hid:AMDI0020, uid:\_SB.FUR1, rdevid:160 [ 0.134371] AMD-Vi: ivrs, add hid:AMDI0020, uid:\_SB.FUR2, rdevid:160 [ 0.134372] AMD-Vi: ivrs, add hid:AMDI0020, uid:\_SB.FUR3, rdevid:160 [ 1.214845] hid: raw HID events driver (C) Jiri Kosina [ 1.214881] usbcore: registered new interface driver usbhid [ 1.214882] usbhid: USB HID core driver and this in 6.10.12 (touchpad working): [ 0.143812] AMD-Vi: ivrs, add hid:AMDI0020, uid:\_SB.FUR0, rdevid:160 [ 0.143814] AMD-Vi: ivrs, add hid:AMDI0020, uid:\_SB.FUR1, rdevid:160 [ 0.143815] AMD-Vi: ivrs, add hid:AMDI0020, uid:\_SB.FUR2, rdevid:160 [ 0.143815] AMD-Vi: ivrs, add hid:AMDI0020, uid:\_SB.FUR3, rdevid:160 [ 1.244550] hid: raw HID events driver (C) Jiri Kosina [ 1.244588] usbcore: registered new interface driver usbhid [ 1.244589] usbhid: USB HID core driver [ 2.291822] hid-generic 0018:2C2F:0027.0001: input,hidraw0: I2C HID v1.00 Mouse [SNSL0027:00 2C2F:0027] on i2c-SNSL0027:00 [ 2.349966] hid-generic 0018:056A:5383.0002: input,hidraw0: I2C HID v1.00 Mouse [WACF2200:00 056A:5383] on i2c-WACF2200:00 [ 2.357724] hid-multitouch 0018:2C2F:0027.0001: input,hidraw1: I2C HID v1.00 Mouse [SNSL0027:00 2C2F:0027] on i2c-SNSL0027:00 [ 2.516529] wacom 0018:056A:5383.0002: hidraw0: I2C HID v1.00 Mouse [WACF2200:00 056A:5383] on i2c-WACF2200:00 The regression doesn't seem to be race-related. I've restarted and re-logged multiple times, and the issue reproduces consistently. [1] https://copr.fedorainfracloud.org/coprs/g/kernel-vanilla/mainline-wo-mergew/
