Hi,
On Fri, May 22, 2020 at 08:27:43AM +0300, Yariv wrote:
>
> Some things I noticed: Gen2 didn't send "BTN_TOOL_FINGER" events,
> while Gen1 did, even though I did not press any button. Note that Gen1
> still had correct timestamps before the regression, even though it
> sent these events.
>
> Another difference (maybe it's the same one..): if you take a look at
> the logs from my previous mail, you'll notice that Gen1 Trackpads
> always send both SYN_REPORT (0) as well as SYN_REPORT (1), while 2nd
> Gen Trackpads only sends SYN_REPORT (0).
So it looks like for Gen1 touchpads we set autorepeat, and it is that
autorepeat on BTN_TOOL_FINGER that gives what you consider jitter.
- evdev:
- [ 0, 293648, 1, 325, 2] # EV_KEY / BTN_TOOL_FINGER 2
- [ 0, 293648, 0, 0, 1] # ------------ SYN_REPORT (1) ---------- +1ms
- evdev:
- [ 0, 303026, 3, 48, 88] # EV_ABS / ABS_MT_TOUCH_MAJOR 88 (-12)
- [ 0, 303026, 3, 53, -232] # EV_ABS / ABS_MT_POSITION_X -232 (-22)
- [ 0, 303026, 3, 54, 291] # EV_ABS / ABS_MT_POSITION_Y 291 (+60)
- [ 0, 303026, 3, 0, -232] # EV_ABS / ABS_X -232 (-22)
- [ 0, 303026, 3, 1, 291] # EV_ABS / ABS_Y 291 (+60)
- [ 0, 303026, 0, 0, 0] # ------------ SYN_REPORT (0) ---------- +10ms
Can you please tell me what drivers are used by the 2 trackpads when they
are connected via Bluetooth? I think we should stop setting autorepeat in
the driver that handles Gen 1.
Also, can you post /proc/bus/input/devices?
Thanks.
--
Dmitry
