Two finger scrolling: Synaptics settings have to be adapted after installation

[Felix Möller]

I have the following input devices:
fm@thinkpad:~$ xinput list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Logitech USB Receiver id=10 [slave pointer (2)]
⎜ ↳ SynPS/2 Synaptics TouchPad id=12 [slave pointer (2)]
⎜ ↳ TPPS/2 IBM TrackPoint 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)]
    ↳ Sleep Button id=8 [slave keyboard (3)]
    ↳ Logitech USB Receiver id=9 [slave keyboard (3)]
    ↳ AT Translated Set 2 keyboard id=11 [slave keyboard (3)]
    ↳ ThinkPad Extra Buttons id=14 [slave keyboard (3)]

The touchpad is configured out of the box with the following settings:
fm@thinkpad:~$ xinput list-props 12
Device 'SynPS/2 Synaptics TouchPad':
 Device Enabled (132): 1
 Coordinate Transformation Matrix (134): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
 Device Accel Profile (261): 1
 Device Accel Constant Deceleration (262): 2.500000
 Device Accel Adaptive Deceleration (263): 1.000000
 Device Accel Velocity Scaling (264): 12.500000
 Synaptics Edges (278): 1760, 5310, 1636, 4442
 Synaptics Finger (279): 24, 29, 255
 Synaptics Tap Time (280): 180
 Synaptics Tap Move (281): 231
 Synaptics Tap Durations (282): 180, 180, 100
 Synaptics Tap FastTap (283): 0
 Synaptics Middle Button Timeout (284): 75
 Synaptics Two-Finger Pressure (285): 280
 Synaptics Two-Finger Width (286): 6
 Synaptics Scrolling Distance (287): 105, 105
 Synaptics Edge Scrolling (288): 0, 0, 0
 Synaptics Two-Finger Scrolling (289): 1, 1
 Synaptics Move Speed (290): 1.000000, 1.750000, 0.038030, 40.000000
 Synaptics Edge Motion Pressure (291): 29, 159
 Synaptics Edge Motion Speed (292): 1, 420
 Synaptics Edge Motion Always (293): 0
 Synaptics Off (294): 0
 Synaptics Locked Drags (295): 0
 Synaptics Locked Drags Timeout (296): 5000
 Synaptics Tap Action (297): 2, 3, 0, 0, 1, 3, 2
 Synaptics Click Action (298): 1, 1, 1
 Synaptics Circular Scrolling (299): 0
 Synaptics Circular Scrolling Distance (300): 0.100000
 Synaptics Circular Scrolling Trigger (301): 0
 Synaptics Circular Pad (302): 0
 Synaptics Palm Detection (303): 0
 Synaptics Palm Dimensions (304): 9, 199
 Synaptics Coasting Speed (305): 20.000000, 50.000000
 Synaptics Pressure Motion (306): 29, 159
 Synaptics Pressure Motion Factor (307): 1.000000, 1.000000
 Synaptics Resolution Detect (308): 1
 Synaptics Grab Event Device (309): 1
 Synaptics Gestures (310): 1
 Synaptics Capabilities (311): 1, 0, 1, 0, 0, 1, 1
 Synaptics Pad Resolution (312): 111, 67
 Synaptics Area (313): 0, 0, 0, 0
 Synaptics Noise Cancellation (314): 26, 26

However to have two finger scrolling activated I have to execute
# xinput --set-prop --type=int --format=32 "SynPS/2 Synaptics TouchPad" "Synaptics Two-Finger Pressure" 10

Otherwise enabling two finger scroll in system-settings does not have any effect at all. I do not think there is even a way to set this value graphically...

Please adapt the default.

[Felix Möller (felix-derklecks)]

I have yet to find out how to change the component of a bug in launchpad. I think this should have gone to xorg-driver-synaptics.

[Felix Möller (felix-derklecks)]

This is similar to bug #648671

[Nathanel Titane (nathanel.titane)]

Also affects me... startup execution works with proposed command xinput...

In fedora 15, it works out of the box by clicking the two-finger scrolling option with gcc - mouse properties & trackpad

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel Fletcher (xyzzyman)]

The included synaptics.conf file works on ubuntu 11.04/11.10/12.04, and in arch/opensuse/fedora/backtrack & jolios for all synaptic pads I've come across. Not all the settings are necessary for two-finger scroll, but it does allow the setting into unity/gnome-control-center to function properly and you can switch between side scroll and two-finger scrolling. I know this won't be fixed for 12.04 but it's a perm fix and this works across the board so far over the last year for me on dozens of installs

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "Not all the settings would be needed, those that do could go into 51-synaptics-quirks.conf" of this bug report has been identified as being a patch. The ubuntu-reviewers team has been subscribed to the bug report so that they can review the patch. In the event that this is in fact not a patch you can resolve this situation by removing the tag 'patch' from the bug report and editing the attachment so that it is not flagged as a patch. Additionally, if you are member of the ubuntu-reviewers team please also unsubscribe the team from this bug report.

[This is an automated message performed by a Launchpad user owned by Brian Murray. Please contact him regarding any issues with the action taken in this bug report.]

[Felix Möller (felix-derklecks)]

I do not think this is a real duplicate.

I do not want any fancy multitouch, I just want to two finger scroll and this is fixed by just a single command:
xinput --set-prop --type=int --format=32 "SynPS/2 Synaptics TouchPad" "Synaptics Two-Finger Pressure" 10

[Ahmed Shams (ashams)]

@Felix, Sorry for confusion. Would try the solution on bug #554980 comment 5 to see if it works for you too? There are many bugs look to be duplicates of this one someway, like that one, bug #422224 and bug #476866 hope we can merge them and forward all as one.