Touchpad right click does not work as expected on Dell G7 7588

[Po-Hsu Lin]

The right button on the touchpad of this system does not work as expected, the click event will get treated as a regular left click.

$ xinput --list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ DELL0825:00 06CB:7E92 Touchpad id=12 [slave pointer (2)]
⎜ ↳ SynPS/2 Synaptics TouchPad id=17 [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)]
    ↳ Sleep Button id=10 [slave keyboard (3)]
    ↳ Integrated_Webcam_HD: Integrate id=11 [slave keyboard (3)]
    ↳ Intel HID 5 button array id=13 [slave keyboard (3)]
    ↳ Intel HID events id=14 [slave keyboard (3)]
    ↳ Dell WMI hotkeys id=15 [slave keyboard (3)]
    ↳ AT Translated Set 2 keyboard id=16 [slave keyboard (3)]

xev for left click and right click:
ButtonPress event, serial 37, synthetic NO, window 0x3000001,
    root 0x263, subw 0x0, time 304106, (167,148), root:(357,319),
    state 0x10, button 1, same_screen YES

ButtonRelease event, serial 37, synthetic NO, window 0x3000001,
    root 0x263, subw 0x0, time 304146, (167,148), root:(357,319),
    state 0x110, button 1, same_screen YES

ButtonPress event, serial 37, synthetic NO, window 0x3000001,
    root 0x263, subw 0x0, time 309562, (167,148), root:(357,319),
    state 0x10, button 1, same_screen YES

ButtonRelease event, serial 37, synthetic NO, window 0x3000001,
    root 0x263, subw 0x0, time 309563, (167,148), root:(357,319),
    state 0x110, button 1, same_screen YES

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-47-generic 4.15.0-47.50
ProcVersionSignature: Ubuntu 4.15.0-47.50-generic 4.15.18
Uname: Linux 4.15.0-47-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Apr 8 17:50:24 2019
InstallationDate: Installed on 2019-04-08 (0 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
SourcePackage: linux-signed
UpgradeStatus: No upgrade log present (probably fresh install)

[Jan Johansson (insomniacno1)]

I have Peach OSI Xubuntu 16.04 LTS 4.4.0-166 64bit

A few days ago my right click Touschpad mouse button on my Thinkpad X300, worked fine, since monday evening it has not worked at all.

Luckily both Touchpoint buttons and external mouse works. I booted my USB with multi tools including Peach OSI 14.04 LTS 32bit to see if problem persists and it does so either firmware of the buttons got corrupted, or the right mouse button suddently died.

user@machine:~$ xinput --list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ AlpsPS/2 ALPS DualPoint TouchPad id=14 [slave pointer (2)]
⎜ ↳ AlpsPS/2 ALPS DualPoint Stick id=15 [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)]
    ↳ Sleep Button id=8 [slave keyboard (3)]
    ↳ UVC Camera (17ef:4807) id=12 [slave keyboard (3)]
    ↳ AT Translated Set 2 keyboard id=13 [slave keyboard (3)]
    ↳ ThinkPad Extra Buttons id=16 [slave keyboard (3)]

[Jan Johansson (insomniacno1)]

user@machine:~$ xinput --list-props 14
Device 'AlpsPS/2 ALPS DualPoint TouchPad':
 Device Enabled (136): 1
 Coordinate Transformation Matrix (138): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
 Device Accel Profile (265): 1
 Device Accel Constant Deceleration (266): 2.500000
 Device Accel Adaptive Deceleration (267): 1.000000
 Device Accel Velocity Scaling (268): 12.500000
 Synaptics Edges (290): 153, 870, 115, 652
 Synaptics Finger (291): 12, 15, 0
 Synaptics Tap Time (292): 180
 Synaptics Tap Move (293): 56
 Synaptics Tap Durations (294): 180, 100, 100
 Synaptics ClickPad (295): 0
 Synaptics Middle Button Timeout (296): 75
 Synaptics Two-Finger Pressure (297): 141
 Synaptics Two-Finger Width (298): 7
 Synaptics Scrolling Distance (299): 25, 25
 Synaptics Edge Scrolling (300): 1, 0, 0
 Synaptics Two-Finger Scrolling (301): 0, 0
 Synaptics Move Speed (302): 1.000000, 1.750000, 0.156495, 0.000000
 Synaptics Off (303): 0
 Synaptics Locked Drags (304): 0
 Synaptics Locked Drags Timeout (305): 5000
 Synaptics Tap Action (306): 2, 3, 0, 0, 0, 0, 0
 Synaptics Click Action (307): 1, 1, 0
 Synaptics Circular Scrolling (308): 0
 Synaptics Circular Scrolling Distance (309): 0.100000
 Synaptics Circular Scrolling Trigger (310): 0
 Synaptics Circular Pad (311): 0
 Synaptics Palm Detection (312): 0
 Synaptics Palm Dimensions (313): 10, 100
 Synaptics Coasting Speed (314): 20.000000, 50.000000
 Synaptics Pressure Motion (315): 15, 80
 Synaptics Pressure Motion Factor (316): 1.000000, 1.000000
 Synaptics Resolution Detect (317): 1
 Synaptics Grab Event Device (318): 0
 Synaptics Gestures (319): 1
 Synaptics Capabilities (320): 1, 1, 1, 0, 0, 1, 0
 Synaptics Pad Resolution (321): 1, 1
 Synaptics Area (322): 0, 0, 0, 0
 Synaptics Noise Cancellation (323): 6, 6
 Device Product ID (256): 2, 8
 Device Node (257): "/dev/input/event6"

user@machine:~$ xinput --list-props 15
Device 'AlpsPS/2 ALPS DualPoint Stick':
 Device Enabled (136): 1
 Coordinate Transformation Matrix (138): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
 Device Accel Profile (265): 0
 Device Accel Constant Deceleration (266): 1.000000
 Device Accel Adaptive Deceleration (267): 1.000000
 Device Accel Velocity Scaling (268): 10.000000
 Device Product ID (256): 2, 8
 Device Node (257): "/dev/input/event5"
 Evdev Axis Inversion (269): 0, 0
 Evdev Axes Swap (271): 0
 Axis Labels (272): "Rel X" (146), "Rel Y" (147)
 Button Labels (273): "Button Left" (139), "Button Middle" (140), "Button Right" (141), "Button Wheel Up" (142), "Button Wheel Down" (143), "Button Horiz Wheel Left" (144), "Button Horiz Wheel Right" (145)
 Evdev Scrolling Distance (274): 0, 0, 0
 Evdev Middle Button Emulation (275): 1
 Evdev Middle Button Timeout (276): 50
 Evdev Third Button Emulation (277): 0
 Evdev Third Button Emulation Timeout (278): 1000
 Evdev Third Button Emulation Button (279): 3
 Evdev Third Button Emulation Threshold (280): 20
 Evdev Wheel Emulation (281): 1
 Evdev Wheel Emulation Axes (282): 6, 7, 4, 5
 Evdev Wheel Emulation Inertia (283): 10
 Evdev Wheel Emulation Timeout (284): 200
 Evdev Wheel Emulation Button (285): 2
 E...

[Jan Johansson (insomniacno1)]

user@machine:~$ grep -i touchpad /var/log/Xorg.0.log
[ 15.043] (II) config/udev: Adding input device AlpsPS/2 ALPS DualPoint TouchPad (/dev/input/event6)
[ 15.043] (**) AlpsPS/2 ALPS DualPoint TouchPad: Applying InputClass "evdev touchpad catchall"
[ 15.043] (**) AlpsPS/2 ALPS DualPoint TouchPad: Applying InputClass "touchpad catchall"
[ 15.043] (**) AlpsPS/2 ALPS DualPoint TouchPad: Applying InputClass "Default clickpad buttons"
[ 15.045] (II) Using input driver 'synaptics' for 'AlpsPS/2 ALPS DualPoint TouchPad'
[ 15.045] (**) AlpsPS/2 ALPS DualPoint TouchPad: always reports core events
[ 15.116] (--) synaptics: AlpsPS/2 ALPS DualPoint TouchPad: x-axis range 0 - 1023 (res 0)
[ 15.116] (--) synaptics: AlpsPS/2 ALPS DualPoint TouchPad: y-axis range 0 - 767 (res 0)
[ 15.116] (--) synaptics: AlpsPS/2 ALPS DualPoint TouchPad: pressure range 0 - 127
[ 15.116] (II) synaptics: AlpsPS/2 ALPS DualPoint TouchPad: device does not report finger width.
[ 15.116] (--) synaptics: AlpsPS/2 ALPS DualPoint TouchPad: buttons: left right middle
[ 15.116] (--) synaptics: AlpsPS/2 ALPS DualPoint TouchPad: Vendor 0x2 Product 0x8
[ 15.116] (--) synaptics: AlpsPS/2 ALPS DualPoint TouchPad: invalid finger width range. defaulting to 0 - 15
[ 15.116] (--) synaptics: AlpsPS/2 ALPS DualPoint TouchPad: touchpad found
[ 15.116] (**) AlpsPS/2 ALPS DualPoint TouchPad: always reports core events
[ 15.168] (II) XINPUT: Adding extended input device "AlpsPS/2 ALPS DualPoint TouchPad" (type: TOUCHPAD, id 14)
[ 15.168] (**) synaptics: AlpsPS/2 ALPS DualPoint TouchPad: (accel) MinSpeed is now constant deceleration 2.5
[ 15.168] (**) synaptics: AlpsPS/2 ALPS DualPoint TouchPad: (accel) MaxSpeed is now 1.75
[ 15.168] (**) synaptics: AlpsPS/2 ALPS DualPoint TouchPad: (accel) AccelFactor is now 0.156
[ 15.168] (**) AlpsPS/2 ALPS DualPoint TouchPad: (accel) keeping acceleration scheme 1
[ 15.168] (**) AlpsPS/2 ALPS DualPoint TouchPad: (accel) acceleration profile 1
[ 15.169] (**) AlpsPS/2 ALPS DualPoint TouchPad: (accel) acceleration factor: 2.000
[ 15.169] (**) AlpsPS/2 ALPS DualPoint TouchPad: (accel) acceleration threshold: 4
[ 15.169] (--) synaptics: AlpsPS/2 ALPS DualPoint TouchPad: touchpad found
[ 15.170] (II) config/udev: Adding input device AlpsPS/2 ALPS DualPoint TouchPad (/dev/input/mouse1)
[ 15.170] (**) AlpsPS/2 ALPS DualPoint TouchPad: Ignoring device from InputClass "touchpad ignore duplicates"

user@machine:~$ lsmod
Module Size Used by
ufs 73728 0
qnx4 16384 0
hfsplus 106496 0
hfs 57344 0
minix 36864 0
ntfs 98304 0
msdos 20480 0
jfs 184320 0
xfs 974848 0
libcrc32c 16384 1 xfs
rfcomm 69632 14
drbg 32768 1
ansi_cprng 16384 0
ctr 16384 1
ccm 20480 1
bnep 20480 2
arc4 16384 2
coretemp 16384 0
kvm_intel 176128 0
snd_hda_codec_analog 16384 1
snd_hda...

[Po-Hsu Lin (cypressyew)]

Hi Jan Johansson,
your issue seems to be different, probably a 4.4 kernel regression.

Can you please:
1. Open a new bug with "ubuntu-bug linux" command in your terminal (ctrl + alt + t)
2. Try to boot with an older kernel (prior than 4.4.0-166) from grub, to confirm if it works with older kernel.
3. Add your test result to the report opened in 1.

Thanks.