Description of problem: ELAN Touchpad stopped working in kernel 4.8.2. In kernel 4.7.9 works. dmesg relevant lines in 4.8.2-200: hid-generic 0018:04F3:300B.0002: unexpected long global item hid-generic: probe of 0018:04F3:300B.0002 failed with error -22 dmesg relevant lines in 4.7.9-200: hid-multitouch 0018:04F3:300B.0002: Ignoring the extra HID_DG_INPUTMODE input: ELAN0501:00 04F3:300B Touchpad as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-6/i2c-ELAN0501:00/0018:04F3:300B.0002/input/input10 hid-multitouch 0018:04F3:300B.0002: input,hidraw1: I2C HID v1.00 Mouse [ELAN0501:00 04F3:300B] on i2c-ELAN0501:00 Version-Release number of selected component (if applicable): 4.8.2-200.fc24.x86_64 How reproducible: Always when using this laptop model: Acer Aspire E15 E5-574-58JV Steps to Reproduce: 1. install kernel-4.8.2-200.fc24.x86_64 2. reboot and boot with the previous selected kernel 3. try to use the touchpad Actual results: Touchpad does not work, xinput does not list it. Expected results: Touchpad gets listed in xinput and works. Additional info:
kernel-4.8.4-200 seems to fix this issue.