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Thread: Gnome Thinks Touchpad is a Monitor?

  1. #1

    Default Gnome Thinks Touchpad is a Monitor?

    I'm trying to track down a display problem and in my trouble-shooting I noticed that Gnome thinks my laptop's touchpad is a monitor.

    For example, if I configure my desktop settings in Gnome:
    https://imgur.com/a/XEiKzFi



    But, from the terminal...
    Code:
    xrandr --listmonitorsMonitors: 2
     0: +XWAYLAND0 3440/800x1440/330+2560+0  XWAYLAND0
     1: +XWAYLAND1 2560/350x1440/190+0+0  XWAYLAND1

  2. #2

    Default Re: Gnome Thinks Touchpad is a Monitor?

    Hello,

    Please use `xinput` in the cmd line and note the id number of the touchpad, then use `xinput list-props id` and post it for us.
    Also install libinput-tools and issue `sudo libinput list-devices` the show us the output.

  3. #3

    Default Re: Gnome Thinks Touchpad is a Monitor?

    luc,
    I think this may be related to my other post about video not working correctly. We'll see...

    In the mean time, here's the output of xinput for the touchpad:
    Code:
    Device 'SynPS/2 Synaptics TouchPad':    Device Enabled (139):    1
        Coordinate Transformation Matrix (141):    1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
        Device Accel Profile (270):    1
        Device Accel Constant Deceleration (271):    2.500000
        Device Accel Adaptive Deceleration (272):    1.000000
        Device Accel Velocity Scaling (273):    12.500000
        Synaptics Edges (296):    1585, 5357, 1446, 4406
        Synaptics Finger (297):    25, 30, 0
        Synaptics Tap Time (298):    180
        Synaptics Tap Move (299):    245
        Synaptics Tap Durations (300):    180, 180, 100
        Synaptics ClickPad (301):    1
        Synaptics Middle Button Timeout (302):    0
        Synaptics Two-Finger Pressure (303):    282
        Synaptics Two-Finger Width (304):    7
        Synaptics Scrolling Distance (305):    111, 111
        Synaptics Edge Scrolling (306):    0, 0, 0
        Synaptics Two-Finger Scrolling (307):    1, 0
        Synaptics Move Speed (308):    1.000000, 1.750000, 0.035881, 0.000000
        Synaptics Off (309):    0
        Synaptics Locked Drags (310):    0
        Synaptics Locked Drags Timeout (311):    5000
        Synaptics Tap Action (312):    0, 0, 0, 0, 1, 3, 2
        Synaptics Click Action (313):    1, 3, 2
        Synaptics Circular Scrolling (314):    0
        Synaptics Circular Scrolling Distance (315):    0.100000
        Synaptics Circular Scrolling Trigger (316):    0
        Synaptics Circular Pad (317):    0
        Synaptics Palm Detection (318):    0
        Synaptics Palm Dimensions (319):    10, 200
        Synaptics Coasting Speed (320):    20.000000, 50.000000
        Synaptics Pressure Motion (321):    30, 160
        Synaptics Pressure Motion Factor (322):    1.000000, 1.000000
        Synaptics Grab Event Device (323):    0
        Synaptics Gestures (324):    1
        Synaptics Capabilities (325):    1, 0, 0, 1, 1, 1, 1
        Synaptics Pad Resolution (326):    1, 1
        Synaptics Area (327):    0, 0, 0, 0
        Synaptics Soft Button Areas (328):    3471, 0, 4026, 0, 0, 0, 0, 0
        Synaptics Noise Cancellation (329):    27, 27
        Device Product ID (263):    2, 7
        Device Node (262):    "/dev/input/event1"
    I switched over to Xfce (because video there works fine) and I see it in the display manager there, as well. So, it's apparently not a Gnome thing. In Xfce, it shows up as a 24" monitor. If I leave it enabled, `xradr --listmonitors` shows:
    Code:
    Monitors: 3 
     0: +*DP2-1 3440/800x1440/330+2560+0  DP2-1
     1: +eDP1 2560/350x1440/190+0+0  eDP1
     2: +DP1-3 1024/271x768/203+6000+0  DP1-3
    and if I disable it from the Xfce display setting, it goes away.
    Code:
    Monitors: 2 
     0: +*DP2-1 3440/800x1440/330+2560+0  DP2-1
     1: +eDP1 2560/350x1440/190+0+0  eDP1
    The output of input list-devices:
    Code:
    Device:           Power Button
    Kernel:           /dev/input/event5
    Group:            1
    Seat:             seat0, default
    Capabilities:     keyboard 
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           Video Bus
    Kernel:           /dev/input/event6
    Group:            2
    Seat:             seat0, default
    Capabilities:     keyboard 
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           Video Bus
    Kernel:           /dev/input/event7
    Group:            2
    Seat:             seat0, default
    Capabilities:     keyboard 
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           Power Button
    Kernel:           /dev/input/event3
    Group:            3
    Seat:             seat0, default
    Capabilities:     keyboard 
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           Lid Switch
    Kernel:           /dev/input/event2
    Group:            4
    Seat:             seat0, default
    Capabilities:     switch
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           Sleep Button
    Kernel:           /dev/input/event4
    Group:            5
    Seat:             seat0, default
    Capabilities:     keyboard 
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           Logitech M720 Triathlon
    Kernel:           /dev/input/event8
    Group:            6
    Seat:             seat0, default
    Capabilities:     keyboard pointer 
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      disabled
    Nat.scrolling:    disabled
    Middle emulation: disabled
    Calibration:      n/a
    Scroll methods:   button
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   flat *adaptive
    Rotation:         n/a
    
    
    Device:           Integrated_Webcam_HD: Integrate
    Kernel:           /dev/input/event24
    Group:            7
    Seat:             seat0, default
    Capabilities:     keyboard 
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           ELAN Touchscreen
    Kernel:           /dev/input/event9
    Group:            8
    Seat:             seat0, default
    Size:             334x188mm
    Capabilities:     touch 
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      identity matrix
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           DLL07BF:01 06CB:7A13 Touchpad
    Kernel:           /dev/input/event17
    Group:            9
    Seat:             seat0, default
    Size:             102x77mm
    Capabilities:     pointer gesture
    Tap-to-click:     disabled
    Tap-and-drag:     enabled
    Tap drag lock:    disabled
    Left-handed:      disabled
    Nat.scrolling:    disabled
    Middle emulation: disabled
    Calibration:      n/a
    Scroll methods:   *two-finger edge 
    Click methods:    *button-areas clickfinger 
    Disable-w-typing: enabled
    Accel profiles:   none
    Rotation:         n/a
    
    
    Device:           EST Gaming keyboard
    Kernel:           /dev/input/event13
    Group:            10
    Seat:             seat0, default
    Capabilities:     keyboard 
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           EST Gaming keyboard
    Kernel:           /dev/input/event15
    Group:            10
    Seat:             seat0, default
    Capabilities:     keyboard pointer 
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    disabled
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           EST Gaming keyboard
    Kernel:           /dev/input/event16
    Group:            10
    Seat:             seat0, default
    Capabilities:     keyboard 
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           HDA Intel PCH Headphone Mic
    Kernel:           /dev/input/event18
    Group:            11
    Seat:             seat0, default
    Capabilities:     
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           HDA Intel PCH HDMI/DP,pcm=3
    Kernel:           /dev/input/event19
    Group:            11
    Seat:             seat0, default
    Capabilities:     
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           HDA Intel PCH HDMI/DP,pcm=7
    Kernel:           /dev/input/event20
    Group:            11
    Seat:             seat0, default
    Capabilities:     
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           HDA Intel PCH HDMI/DP,pcm=8
    Kernel:           /dev/input/event21
    Group:            11
    Seat:             seat0, default
    Capabilities:     
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           HDA Intel PCH HDMI/DP,pcm=9
    Kernel:           /dev/input/event22
    Group:            11
    Seat:             seat0, default
    Capabilities:     
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           HDA Intel PCH HDMI/DP,pcm=10
    Kernel:           /dev/input/event23
    Group:            11
    Seat:             seat0, default
    Capabilities:     
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           Intel HID events
    Kernel:           /dev/input/event10
    Group:            12
    Seat:             seat0, default
    Capabilities:     keyboard 
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           Intel HID 5 button array
    Kernel:           /dev/input/event11
    Group:            13
    Seat:             seat0, default
    Capabilities:     keyboard 
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           Dell WMI hotkeys
    Kernel:           /dev/input/event14
    Group:            14
    Seat:             seat0, default
    Capabilities:     keyboard 
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           AT Translated Set 2 keyboard
    Kernel:           /dev/input/event0
    Group:            15
    Seat:             seat0, default
    Capabilities:     keyboard 
    Tap-to-click:     n/a
    Tap-and-drag:     n/a
    Tap drag lock:    n/a
    Left-handed:      n/a
    Nat.scrolling:    n/a
    Middle emulation: n/a
    Calibration:      n/a
    Scroll methods:   none
    Click methods:    none
    Disable-w-typing: n/a
    Accel profiles:   n/a
    Rotation:         n/a
    
    
    Device:           SynPS/2 Synaptics TouchPad
    Kernel:           /dev/input/event1
    Group:            16
    Seat:             seat0, default
    Size:             70x51mm
    Capabilities:     pointer gesture
    Tap-to-click:     disabled
    Tap-and-drag:     enabled
    Tap drag lock:    disabled
    Left-handed:      disabled
    Nat.scrolling:    disabled
    Middle emulation: disabled
    Calibration:      n/a
    Scroll methods:   *two-finger edge 
    Click methods:    *button-areas clickfinger 
    Disable-w-typing: enabled
    Accel profiles:   none
    Rotation:         n/a

  4. #4

    Default Re: Gnome Thinks Touchpad is a Monitor?

    First run `xinput list | grep 'DLL07BF:01 06CB:7A13 Touchpad'` and see if it's disabled. The journal shows that your system detects two touchpads, one is DLL07BF:01 and the second is SynPS/2 Synaptics. Dell's recommendation for Ubuntu users -- we can put it as for Linux distros, is to disable the second. If the xinput shows it's really enabled follow this article and we'll see if anything changes about the third display.

  5. #5

    Default Re: Gnome Thinks Touchpad is a Monitor?

    Success!! ...for both issues.

    It's a little weird in gnome, the monitor ids show up as 1 (internal display) and 3 (external display), but no extra Synaptics monitor.

    Thank you so much for teaching me how to chase this down. I wonder when the dual touchpad drivers became an issue?

  6. #6

    Default Re: Gnome Thinks Touchpad is a Monitor?

    Quote Originally Posted by luc14n0 View Post
    First run `xinput list | grep 'DLL07BF:01 06CB:7A13 Touchpad'` and see if it's disabled. The journal shows that your system detects two touchpads, one is DLL07BF:01 and the second is SynPS/2 Synaptics. Dell's recommendation for Ubuntu users -- we can put it as for Linux distros, is to disable the second. If the xinput shows it's really enabled follow this article and we'll see if anything changes about the third display.
    Allow me to make an addendum here to clarify something.

    I shouldn't have asked you to run this first command as DLL07BF:01 touchpad device is the one which must be enabled and we can see above in one of xinput outputs that the second touchpad -- SynPS/2 Synaptics, the one that should be disabled, was enabled.

    Having said that. I honestly don't know why Linux detecs two touchpads when you have only one, but it's not adviced to have both enabled because it leads to some confusions which in turn leads to nasty issues.

  7. #7

    Default Re: Gnome Thinks Touchpad is a Monitor?

    Quote Originally Posted by CWDillon View Post
    I wonder when the dual touchpad drivers became an issue?
    I can't say for sure but it seems it wasn't causing trouble for you under X.org and somehow the GNOME updates was bringing up your other post's issue with your external monitor. Wayland uses libinput for input devices handling and was getting confused.

    Can you say if you had noticed the extra monitor before this issue with the external monitor?

  8. #8

    Default Re: Gnome Thinks Touchpad is a Monitor?

    Quote Originally Posted by CWDillon View Post
    Success!! ...for both issues.
    For future references, this is the other thread related to this very one: "Update yesterday broke Gnome Wayland Bumblebee external monitor"

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