Warren, I have some thoughts need your help.
1. Try to turn off the power management and do S3 to see if it works
cd /sys/devices/pci0000:00
find -name control | xargs -I '{}' sudo sh -c "echo on > '{}'"
sudo pm-suspend
2. add the quirk explicitly
sudo echo "options usbhid quirks=0x06cb:0x0af8:0x20000000" >
/etc/modprobe.d/usbhid.conf
sudo update-initramfs -u
(To disable this, just remove the file /etc/modprobe.d/usbhid.conf and
do "sudo update-initramfs -u" again)
3. enable xhci debug message
add the below line to kernel command line
dyndbg='module xhci_hcd +p'
You can add it while booting to grub, press left shift key can enter
grub interactive mode, and press e to edit it like this
linux /boot/vmlinuz-3.13.0-24-generic
root=UUID=13ea166e-7711-4a7e-86bb-83a5ce4a9b05 ro quiet splash
crashkernel=384M-:128M $vt_handoff dyndbg='module xhci_hcd +p'
Just add the dyndbg parameter, then press ctrl+x or F10 to boot up, then
get the dmesg log and attach it.
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1265885
Title:
regression: SynPS/2 touchpad detected as DLL060A:00 pointer
Status in Release Notes for Ubuntu:
Fix Released
Status in “linux” package in Ubuntu:
Fix Released
Status in “linux” source package in Trusty:
Fix Committed
Bug description:
This regression occurs somewhere between 3.11.0-14-generic (latest on
saucy) and 3.13.0-031300rc6-generic (a test kernel). On the earlier
kernel, I actually get settings for setting up my touchpad in the
unity interface. With the updated kernel, those options disappear. I
only get one set of options both my mouse and my touchpad instead of
each one independently. It means that I can't set the pointer speed
differently or turn on natural scrolling for my touchpad.
WORKAROUND: Execute at a terminal and then reboot your system:
echo "blacklist i2c_hid" | sudo tee -a /etc/modprobe.d/blacklist.conf
Release Notes Text
Bug:1265885 On some Dell XPS13 systems the Synaptics touchpad is incorrectly
recognised as a mouse. See the bug for possible workarounds.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-release-notes/+bug/1265885/+subscriptions
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