>>1. When the touchpad works by setting pin's direction=out, you could
see lots of "no data" message ("IRQ triggered but there's no data")
keeping popping up after moving your finger away from the touchpad, am I
correct?> no, wrong. when run : echo out > direction, > dmesg say : > [ 133.854926] i2c_hid i2c-MSFT0001:00: i2c_hid_get_input: IRQ triggered but > there's no data > only one time, > then my touchpad can work. > no keeping popping up after moving your finger away from the touchpad. This is something quite unexpected. When the finger is away from the toucpad, is there any output from `sudo hid-recorder`? For my laptop, the same HId report will be repeatedly received by hid-recorder because amd_gpio_irq_handler is called repeatedly. If amd_gpio_irq_handler is not called when you don't use the touchpad, then "echo out > direction" is really a solution and your guess that amd-pinctrl has incorrect configuration the direction is absolutely right. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1887190 Title: MSFT Touchpad not working on Lenovo Legion-5 15ARH05 To manage notifications about this bug go to: https://bugs.launchpad.net/pop-os/+bug/1887190/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
