I've a Dell XPS 15 with Ubuntu 14.10 and I've just realized that my touchscreen does not work anymore. It's not even recognized:
$ dmesg |grep -i touch
[ 3.179897] psmouse serio1: synaptics: Touchpad model: 1, fw: 8.1, id: 0x1e2b1, caps: 0xd00123/0x840300/0x126800, board id: 2733, fw id: 1515627
[ 3.283270] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input5
Here is the output of xinput:
$ xinput list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ SynPS/2 Synaptics TouchPad id=12 [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)]
↳ Video Bus id=8 [slave keyboard (3)]
↳ Power Button id=9 [slave keyboard (3)]
↳ Integrated Webcam id=10 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=11 [slave keyboard (3)]
↳ Dell WMI hotkeys id=13 [slave keyboard (3)]
As you can see, there is no entry for Synaptics touchscreen, as expected under "Virtual core pointer".
I tried re-installing Dell's quirck for touchscreen with no effect. My kernel version was 3.16, I upstreamed to latest 3.18 kernel with no results.
Any clues?
Thanks!
Luis
⎜ ↳ SYNAPTICS Synaptics Large Touch Screen id=9 [slave pointer (2)]
. I think I will contact Dell's support. I would appreciate if someone who has gone through the same issue drop a comment. Thanks !$ lsmod |grep usb btusb 32691 0 bluetooth 486890 22 bnep,btusb,rfcomm
. tried modprobe usbhid, it loads the module, but still no touchscreen available as a device ...