Public bug reported: >From /proc/bus/input/devices:
I: Bus=0018 Vendor=06cb Product=cd97 Version=0100 N: Name="DELL08E1:00 06CB:CD97 Touchpad" P: Phys=i2c-DELL08E1:00 S: Sysfs=/devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-9/i2c-DELL08E1:00/0018:06CB:CD97.0002/input/input30 U: Uniq= H: Handlers=mouse0 event4 B: PROP=1 B: EV=1b B: KEY=e520 30000 0 0 0 0 B: ABS=2e0800000000003 B: MSC=20 The touchpad becomes unresponsive when it enters power saving mode (/sys/devices/pci0000\:00/0000\:00\:15.1/power/control = auto). The problem is fixed when disabling the power saving mode. The problem happens both with Synaptics and Libinput as driver. ** Affects: xorg-hwe-18.04 (Ubuntu) Importance: Undecided Status: New ** Affects: xserver-xorg-input-libinput-hwe-18.04 (Ubuntu) Importance: Undecided Status: New ** Affects: xserver-xorg-input-synaptics-hwe-18.04 (Ubuntu) Importance: Undecided Status: New ** Also affects: xserver-xorg-input-libinput-hwe-18.04 (Ubuntu) Importance: Undecided Status: New ** Also affects: xserver-xorg-input-synaptics-hwe-18.04 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1845893 Title: Dell Latitude 7400 Touchpad unresponsive in power saving mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-hwe-18.04/+bug/1845893/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs