kernel-packages team mailing list archive

[Jens Bast <jbast@xxxxxxx>]

Hi everybody,
I am new to this, so apologies.

I got also a Dell XPS 12 and for me, after the official kernel update to "3.13.0-27-generic" my touchpad is not working in multitouch anymore (like scrolling and so on) and oly recognized as mouse. Touchscreen works fine. 
 xinput
⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳ ATML1000:00 03EB:842F                   	id=10	[slave  pointer  (2)]
⎜   ↳ DLL05E3:01 06CB:2734                    	id=11	[slave  pointer  (2)]
⎜   ↳ PS/2 Synaptics TouchPad                 	id=14	[slave  pointer  (2)]
⎣ Virtual core keyboard                   	id=3	[master keyboard (2)]
    ↳ Virtual core XTEST keyboard             	id=5	[slave  keyboard (3)]
    ↳ Power Button                            	id=6	[slave  keyboard (3)]
    ↳ Video Bus                               	id=7	[slave  keyboard (3)]
    ↳ Power Button                            	id=8	[slave  keyboard (3)]
    ↳ Integrated Webcam                       	id=9	[slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard            	id=12	[slave  keyboard (3)]
    ↳ Dell WMI hotkeys                        	id=13	[slave  keyboard (3)]

If I blacklist in the blacklist.conf i2c_hid touchpad is fully
functional, but touchscreen is disabled.

Before the update I did this workaround:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1218973

in more detail:
download this:
https://github.com/bentiss/hid-rmi

1. make/make install of hid-rmi
2. Manually run ‘sudo depmod -a’ (wouldn’t find it without this step).
3. Ensure that you can modprobe it and that its found now, if so proceed. No point proceeding unless you get this sorted.
4. Ensure that i2c_hid wasn’t blacklisted and was loading.
5. Create /etc/modprobe.d/hid-rmi.conf as follows (write following into this new file):
install hid_rmi rmmod hid_generic ; modprobe –ignore-install hid_rmi
6. Reboot and make sure all was loading. (If correct both touchscreen will work and touchpad will register correctly under System Settings->Mouse – otherwise touchpad just appears as regular mouse under System Settings->Mouse)


So I did not install the custom kernels here (eg. #44).

I blacklisted hid-rmi but problem remains.
Any idea how I can get rid of the workaround?
probably the same issue as arash.

How can I install the custom kernel? Or should I just wait for an
official fix?

-- 
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/1305522

Title:
  Backport Synaptics HID touchpad driver for 14.04

Status in “linux” package in Ubuntu:
  In Progress
Status in “linux” source package in Trusty:
  In Progress

Bug description:
  Synaptics just upstreamed a new set of HID touchpad driver:

  http://git.kernel.org/cgit/linux/kernel/git/jikos/hid.git/commit/?h=for-3.16/rmi4&id=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736

  It's better we can have it in 14.04 .

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