Comment 192 for bug 1887190

@Helmut Stult (helmut-stult)

> @Coiby Xu (coiby)

> Apparently there was a similar problem with the 4.19 kernel, but with the Intel CPU, which was then solved with the following patch.

> https://gitlab.manjaro.org/packages/core/linux419/-/blob/master/ELAN_touchpad_i2c_hid_pinctrl.patch

> Now the two lines are included (for example) in kernel 5.8 in /drivers/pincrtl/pincrtl-intel.c:

> /* Clear interrupt status first to avoid unexpected interrupt */

Thank you for sharing this info! I think we've found the root cause and the fix is to disable glitch filter. What needs to be done is to find a way to do it without affecting existing touchpads. For the details, you can check the disccussion in this thread https://www.spinics.net/lists/linux-gpio/msg53638.html.