Ubuntu – Ubuntu 16.04 touchpad stops working after login

16.04acerdual-boottouchpad

I've just installed Ubuntu 16.04 on an Acer Aspire E5-552-T574 and I'm dual booting with Windows 10.

Touchpad works just fine in Windows but in Ubuntu it only works before I log in and for a few seconds after that but then it just stops working. Plugging in a usb mouse works fine though.

xinput gives me the following output for my touchpad:

~$ xinput list
⎡ Virtual core pointer                      id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer            id=4    [slave  pointer  (2)]
⎜   ↳ Areson USB Device                     id=11   [slave  pointer  (2)]
⎜   ↳ Areson USB Device                     id=12   [slave  pointer  (2)]
⎜   ↳ SYN1B81:01 06CB:2970 Touchpad         id=13   [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)]
    ↳ Sleep Button                          id=9    [slave  keyboard (3)]
    ↳ HD WebCam                             id=10   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard          id=14   [slave  keyboard (3)]
    ↳ Acer WMI hotkeys                      id=15   [slave  keyboard (3)]

Also here is the relevant touchpad info:

~$ cat /proc/bus/input/devices
...
...
I: Bus=0018 Vendor=06cb Product=2970 Version=0100
N: Name="SYN1B81:01 06CB:2970 Touchpad"
P: Phys=i2c-SYN1B81:01
S: Sysfs=/devices/platform/AMD0010:00/i2c-6/i2c-SYN1B81:01/0018:06CB:2970.0003/input/input13
U: Uniq=
H: Handlers=mouse1 event13 
B: PROP=5
B: EV=b
B: KEY=6420 10000 0 0 0 0
B: ABS=260800000000003

Some people have been suggesting running the following command:

gconftool-2 --set --type boolean /desktop/gnome/peripherals/touchpad/touchpad_enabled true

also this command:

gconftool -s -t bool /desktop/gnome/peripherals/touchpad/touchpad_enabled true

That didn't seem to work for me. Then I went into the grub and added "i8042.reset" to the line "GRUB_CMDLINE_LINUX_DEFAULT" and then updated the grub:

~$ sudo nano /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="i8042.reset quiet splash"
~$ sudo update-grub

That didn't work so I tried to disable and enable the touchpad:

xinput --disable [id]
xinput --enable [id]

Just replaced "[id]" with 13 in my case… but that didn't work either.

I'm not really sure what more I can try, anyone got any suggestions?

EDIT:
I can use the touchpad if I change it from Advanced to Basic in the BIOS but that's not much of a solution since scrolling and tapping don't work that way.

Best Answer

I had the same problem (trackpad stops working after login). On my Asus SonicMaster laptop, pressing Fn-F9 fixed it (it was apparently disabled and Fn-F9 re-enabled it).

Related Solutions

Ubuntu – How to get two finger scrolling working on an Acer S3 Elantech Touchpad

First off does the touch-pad support two finger scrolling? If so the result of synclient -l would be nice to edit

add the output of the command synclient -l.

Parameter settings:
    LeftEdge                = 1775
    RightEdge               = 5503
    TopEdge                 = 1652
    BottomEdge              = 4662
    FingerLow               = 24
    FingerHigh              = 29
    FingerPress             = 255
    MaxTapTime              = 180
    MaxTapMove              = 245
    MaxDoubleTapTime        = 180
    SingleTapTimeout        = 180
    ClickTime               = 100
    FastTaps                = 0
    EmulateMidButtonTime    = 75
    EmulateTwoFingerMinZ    = 10
    EmulateTwoFingerMinW    = 6
    VertScrollDelta         = 111
    HorizScrollDelta        = 111
    VertEdgeScroll          = 0
    HorizEdgeScroll         = 0
    CornerCoasting          = 0
    VertTwoFingerScroll     = 1
    HorizTwoFingerScroll    = 0
    MinSpeed                = 1
    MaxSpeed                = 1.75
    AccelFactor             = 0.0359131
    TrackstickSpeed         = 40
    EdgeMotionMinZ          = 29
    EdgeMotionMaxZ          = 159
    EdgeMotionMinSpeed      = 1
    EdgeMotionMaxSpeed      = 445
    EdgeMotionUseAlways     = 0
    TouchpadOff             = 0
    LockedDrags             = 0
    LockedDragTimeout       = 5000
    RTCornerButton          = 2
    RBCornerButton          = 3
    LTCornerButton          = 0
    LBCornerButton          = 0
    TapButton1              = 1
    TapButton2              = 3
    TapButton3              = 2
    ClickFinger1            = 1
    ClickFinger2            = 1
    ClickFinger3            = 1
    CircularScrolling       = 0
    CircScrollDelta         = 0.1
    CircScrollTrigger       = 0
    CircularPad             = 0
    PalmDetect              = 0
    PalmMinWidth            = 9
    PalmMinZ                = 199
    CoastingSpeed           = 20
    CoastingFriction        = 50
    PressureMotionMinZ      = 29
    PressureMotionMaxZ      = 159
    PressureMotionMinFactor = 1
    PressureMotionMaxFactor = 1
    ResolutionDetect        = 1
    GrabEventDevice         = 1
    TapAndDragGesture       = 1
    AreaLeftEdge            = 0
    AreaRightEdge           = 0
    AreaTopEdge             = 0
    AreaBottomEdge          = 0

You can change the setting of the synclient by adding to the startup application a new application with the following command:

xterm -e synclient "EmulateTwoFingerMinZ=10"

This would change the setting of EmulateTwoFingerMinZ to the value of 10

Found similar answer here: How to get two-finger scolling to work?

Ubuntu – How to config Trackpoint + Synaptics touchpad only enable clicks on Linux (Ubuntu)

Well, this is not the direct answer, but a suggestion and examples. If you run xinput, you will get list of your devices. Then run xinput list-props $id where $id is your touchpad id in the list.

You will have a list of options like this:

$ xinput list-props 13
Device 'SynPS/2 Synaptics TouchPad':
    Device Enabled (135):   1
    Coordinate Transformation Matrix (137): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
    Device Accel Profile (268): 1
    Device Accel Constant Deceleration (269):   2.500000
    Device Accel Adaptive Deceleration (270):   1.000000
    Device Accel Velocity Scaling (271):    12.500000
    Synaptics Edges (292):  1765, 5371, 1637, 4453
    Synaptics Finger (293): 25, 30, 0
    Synaptics Tap Time (294):   180
    Synaptics Tap Move (295):   234
    Synaptics Tap Durations (296):  180, 180, 100
    Synaptics ClickPad (297):   1
    [...]

You can change all of these on-the-fly with xinput set-prop $id $propId $value where $id is the device id, $propId is property id in brackets and $value is what you want it to be. For example:

xinput set-prop 13 135 0 sets Device Enabled (135) to 0 and this will disable the touchpad.

You will need descriptions of properties and a way to make your changes permanent. Descriptions can be found in man synaptics, but wait, they are in another cryptic format! Let's see why.

To make changes permanent, you need to create conf file in /etc/X11/xorg.conf.d, for example 30-tochpad.conf with contents like these:

    Section "InputClass"  # you can read more in `man xorg`
            Identifier "all touchpads"  # just a name for this config
            MatchIsTouchpad "on"  # enables this config for all detected touchpads
            Driver "synaptics"  # enables synaptics-specific options below

            # This will disable the device
            #Option "Ignore" "1"

            # There are options that are generic for input-devices or mouse-like devices, see `man evdev`:
            Option "ButtonMapping" "0 0 0 0 0 0 0"  # i disabled all buttons here, for example

            # Here go options from `man synaptics`
            Option "VertTwoFingerScroll" "1"
            Option "HorizTwoFingerScroll" "1"
            Option "PalmDetect" "1"
            Option "ClickPad" "0"                
            # ...etc...
    EndSection

So, man synaptics describes options for xorg.conf and tells how they correspond to xinput list-props output.

PS. I tried to configure trackpoint on my ThinkPad X220 to have only two-fingers-scroll enabled, without clicks or mouse movement. I failed. Maybe you will manage to do what you want (there was an option to disable everything but clicks, maybe Synaptics Off).

Sources, more examples and unicorns:

https://wiki.ubuntu.com/X/Config/Input

https://wiki.archlinux.org/index.php/Touchpad_Synaptics

Best Answer

Related Solutions

Ubuntu – How to get two finger scrolling working on an Acer S3 Elantech Touchpad

Ubuntu – How to config Trackpoint + Synaptics touchpad only enable clicks on Linux (Ubuntu)

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