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[Matthew Hudson <1384741@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Since upgrade yesterday on 14.10 - touchpad on my Lenovo X1 Carbon is
corrupted. After a reboot, it works for about 30 seconds then degrades
rapidly, where cursor jumps around screen and does not follow touchpad
movements. Two finger scrolling can cause right click events.

cat /proc/bus/input/devices 
I: Bus=0019 Vendor=0000 Product=0005 Version=0000
N: Name="Lid Switch"
P: Phys=PNP0C0D/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input0
U: Uniq=
H: Handlers=event0 
B: PROP=0
B: EV=21
B: SW=1

I: Bus=0019 Vendor=0000 Product=0003 Version=0000
N: Name="Sleep Button"
P: Phys=PNP0C0E/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input1
U: Uniq=
H: Handlers=kbd event1 
B: PROP=0
B: EV=3
B: KEY=4000 0 0

I: Bus=0019 Vendor=0000 Product=0001 Version=0000
N: Name="Power Button"
P: Phys=LNXPWRBN/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXPWRBN:00/input/input2
U: Uniq=
H: Handlers=kbd event2 
B: PROP=0
B: EV=3
B: KEY=10000000000000 0

I: Bus=0011 Vendor=0001 Product=0001 Version=ab54
N: Name="AT Translated Set 2 keyboard"
P: Phys=isa0060/serio0/input0
S: Sysfs=/devices/platform/i8042/serio0/input/input3
U: Uniq=
H: Handlers=sysrq kbd event3 
B: PROP=0
B: EV=120013
B: KEY=402000000 3803078f800d001 feffffdfffefffff fffffffffffffffe
B: MSC=10
B: LED=7

I: Bus=0011 Vendor=0002 Product=0007 Version=01b1
N: Name="SynPS/2 Synaptics TouchPad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input5
U: Uniq=
H: Handlers=mouse0 event4 
B: PROP=5
B: EV=b
B: KEY=e520 10000 0 0 0 0
B: ABS=660800011000003

I: Bus=0019 Vendor=17aa Product=5054 Version=4101
N: Name="ThinkPad Extra Buttons"
P: Phys=thinkpad_acpi/input0
S: Sysfs=/devices/platform/thinkpad_acpi/input/input7
U: Uniq=
H: Handlers=rfkill kbd event5 
B: PROP=0
B: EV=33
B: KEY=18040000 0 10000000000000 0 1501b02102004 c000080021104000 10e000000000000 0
B: MSC=10
B: SW=a

I: Bus=0019 Vendor=0000 Product=0006 Version=0000
N: Name="Video Bus"
P: Phys=LNXVIDEO/video/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input8
U: Uniq=
H: Handlers=kbd event6 
B: PROP=0
B: EV=3
B: KEY=3e000b00000000 0 0 0

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH Mic"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input9
U: Uniq=
H: Handlers=event7 
B: PROP=0
B: EV=21
B: SW=10

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH Headphone"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input10
U: Uniq=
H: Handlers=event8 
B: PROP=0
B: EV=21
B: SW=4

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH HDMI/DP,pcm=3"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input11
U: Uniq=
H: Handlers=event9 
B: PROP=0
B: EV=21
B: SW=140

I: Bus=0003 Vendor=0eef Product=790a Version=0210
N: Name="eGalax Inc. eGalaxTouch EXC7903-66v03_T1"
P: Phys=usb-0000:00:14.0-3/input0
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb3/3-3/3-3:1.0/0003:0EEF:790A.0001/input/input12
U: Uniq=
H: Handlers=mouse1 event10 
B: PROP=2
B: EV=b
B: KEY=400 0 0 0 0 0
B: ABS=260800000000003

I: Bus=0003 Vendor=5986 Product=0266 Version=1412
N: Name="Integrated Camera"
P: Phys=usb-0000:00:1a.0-1.6/button
S: Sysfs=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.0/input/input14
U: Uniq=
H: Handlers=kbd event11 
B: PROP=0
B: EV=3
B: KEY=100000 0 0 0

I: Bus=0011 Vendor=0002 Product=000a Version=0000
N: Name="TPPS/2 IBM TrackPoint"
P: Phys=synaptics-pt/serio0/input0
S: Sysfs=/devices/platform/i8042/serio1/serio2/input/input6
U: Uniq=
H: Handlers=mouse2 event12 
B: PROP=0
B: EV=7
B: KEY=70000 0 0 0 0
B: REL=3

** Affects: xserver-xorg-input-synaptics (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1384741

Title:
  Lenovo X1 TouchPad intermittent/corrupt

Status in “xserver-xorg-input-synaptics” package in Ubuntu:
  New

Bug description:
  Since upgrade yesterday on 14.10 - touchpad on my Lenovo X1 Carbon is
  corrupted. After a reboot, it works for about 30 seconds then degrades
  rapidly, where cursor jumps around screen and does not follow touchpad
  movements. Two finger scrolling can cause right click events.

  cat /proc/bus/input/devices 
  I: Bus=0019 Vendor=0000 Product=0005 Version=0000
  N: Name="Lid Switch"
  P: Phys=PNP0C0D/button/input0
  S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input0
  U: Uniq=
  H: Handlers=event0 
  B: PROP=0
  B: EV=21
  B: SW=1

  I: Bus=0019 Vendor=0000 Product=0003 Version=0000
  N: Name="Sleep Button"
  P: Phys=PNP0C0E/button/input0
  S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input1
  U: Uniq=
  H: Handlers=kbd event1 
  B: PROP=0
  B: EV=3
  B: KEY=4000 0 0

  I: Bus=0019 Vendor=0000 Product=0001 Version=0000
  N: Name="Power Button"
  P: Phys=LNXPWRBN/button/input0
  S: Sysfs=/devices/LNXSYSTM:00/LNXPWRBN:00/input/input2
  U: Uniq=
  H: Handlers=kbd event2 
  B: PROP=0
  B: EV=3
  B: KEY=10000000000000 0

  I: Bus=0011 Vendor=0001 Product=0001 Version=ab54
  N: Name="AT Translated Set 2 keyboard"
  P: Phys=isa0060/serio0/input0
  S: Sysfs=/devices/platform/i8042/serio0/input/input3
  U: Uniq=
  H: Handlers=sysrq kbd event3 
  B: PROP=0
  B: EV=120013
  B: KEY=402000000 3803078f800d001 feffffdfffefffff fffffffffffffffe
  B: MSC=10
  B: LED=7

  I: Bus=0011 Vendor=0002 Product=0007 Version=01b1
  N: Name="SynPS/2 Synaptics TouchPad"
  P: Phys=isa0060/serio1/input0
  S: Sysfs=/devices/platform/i8042/serio1/input/input5
  U: Uniq=
  H: Handlers=mouse0 event4 
  B: PROP=5
  B: EV=b
  B: KEY=e520 10000 0 0 0 0
  B: ABS=660800011000003

  I: Bus=0019 Vendor=17aa Product=5054 Version=4101
  N: Name="ThinkPad Extra Buttons"
  P: Phys=thinkpad_acpi/input0
  S: Sysfs=/devices/platform/thinkpad_acpi/input/input7
  U: Uniq=
  H: Handlers=rfkill kbd event5 
  B: PROP=0
  B: EV=33
  B: KEY=18040000 0 10000000000000 0 1501b02102004 c000080021104000 10e000000000000 0
  B: MSC=10
  B: SW=a

  I: Bus=0019 Vendor=0000 Product=0006 Version=0000
  N: Name="Video Bus"
  P: Phys=LNXVIDEO/video/input0
  S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input8
  U: Uniq=
  H: Handlers=kbd event6 
  B: PROP=0
  B: EV=3
  B: KEY=3e000b00000000 0 0 0

  I: Bus=0000 Vendor=0000 Product=0000 Version=0000
  N: Name="HDA Intel PCH Mic"
  P: Phys=ALSA
  S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input9
  U: Uniq=
  H: Handlers=event7 
  B: PROP=0
  B: EV=21
  B: SW=10

  I: Bus=0000 Vendor=0000 Product=0000 Version=0000
  N: Name="HDA Intel PCH Headphone"
  P: Phys=ALSA
  S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input10
  U: Uniq=
  H: Handlers=event8 
  B: PROP=0
  B: EV=21
  B: SW=4

  I: Bus=0000 Vendor=0000 Product=0000 Version=0000
  N: Name="HDA Intel PCH HDMI/DP,pcm=3"
  P: Phys=ALSA
  S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input11
  U: Uniq=
  H: Handlers=event9 
  B: PROP=0
  B: EV=21
  B: SW=140

  I: Bus=0003 Vendor=0eef Product=790a Version=0210
  N: Name="eGalax Inc. eGalaxTouch EXC7903-66v03_T1"
  P: Phys=usb-0000:00:14.0-3/input0
  S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb3/3-3/3-3:1.0/0003:0EEF:790A.0001/input/input12
  U: Uniq=
  H: Handlers=mouse1 event10 
  B: PROP=2
  B: EV=b
  B: KEY=400 0 0 0 0 0
  B: ABS=260800000000003

  I: Bus=0003 Vendor=5986 Product=0266 Version=1412
  N: Name="Integrated Camera"
  P: Phys=usb-0000:00:1a.0-1.6/button
  S: Sysfs=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.0/input/input14
  U: Uniq=
  H: Handlers=kbd event11 
  B: PROP=0
  B: EV=3
  B: KEY=100000 0 0 0

  I: Bus=0011 Vendor=0002 Product=000a Version=0000
  N: Name="TPPS/2 IBM TrackPoint"
  P: Phys=synaptics-pt/serio0/input0
  S: Sysfs=/devices/platform/i8042/serio1/serio2/input/input6
  U: Uniq=
  H: Handlers=mouse2 event12 
  B: PROP=0
  B: EV=7
  B: KEY=70000 0 0 0 0
  B: REL=3

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