The I2C comment gave me a hint, which led to a solution. But I still have a question of what changed and what can be done to warn the user about the change.
I removed the file: /etc/modprobe.d/blacklist_i2c_hid.conf?field.comment=The I2C comment gave me a hint. I removed the file: /etc/modprobe.d/blacklist_i2c_hid.conf I still have the following lines in blacklist.conf: # causes failure to suspend on HP compaq nc6000 (Ubuntu: #10306) blacklist i2c_i801 ** Attachment added: "modprobe.d filie removed which caused" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1737639/+attachment/5022738/+files/blacklist_i2c_hid.conf -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1737639 Title: Touchpad stopped working in Dell XPS13 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1737639/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs