Bug 99245

I'm on a gentoo distro and I have: 

dev-libs/libinput
      Latest version available: 1.5.2
      Latest version installed: 1.5.2

x11-drivers/xf86-input-libinput
      Latest version available: 0.22.0
      Latest version installed: 0.22.0


I can not get gnome or even gdm started since I get a segfault for gnome-session. I traced the issue down to libinput switch from synaptics. Switching back to synaptics+evdev resolves the issue. This is what I see in journal:

Dec 10 17:33:55 frodo gnome-session-binary[472]: WARNING: App 'org.gnome.Shell.desktop' exited with code 1
Dec 10 17:33:55 frodo org.gnome.Shell.desktop[495]: Current serial number in output stream:  259
Dec 10 17:33:55 frodo org.gnome.Shell.desktop[495]: Serial number of failed request:  258
Dec 10 17:33:55 frodo org.gnome.Shell.desktop[495]: Value in failed request:  0x12c
Dec 10 17:33:55 frodo org.gnome.Shell.desktop[495]: Minor opcode of failed request:  57 ()
Dec 10 17:33:55 frodo org.gnome.Shell.desktop[495]: Major opcode of failed request:  131 (XInputExtension)
Dec 10 17:33:55 frodo org.gnome.Shell.desktop[495]: X Error of failed request:  BadValue (integer parameter out of range for operation)
 


In the Xorg logs I see: (I suspect that "no resolution or size hints, assuming a size of 69x50mm" could be a hint, but I dont really know)

    38.393] (II) config/udev: Adding input device AlpsPS/2 ALPS GlidePoint (/dev/input/event9)
[    38.393] (**) AlpsPS/2 ALPS GlidePoint: Applying InputClass "libinput touchpad catchall"
[    38.393] (II) systemd-logind: got fd for /dev/input/event9 13:73 fd 22 paused 0
[    38.393] (II) Using input driver 'libinput' for 'AlpsPS/2 ALPS GlidePoint'
[    38.394] (**) AlpsPS/2 ALPS GlidePoint: always reports core events
[    38.394] (**) Option "Device" "/dev/input/event9"
[    38.394] (**) Option "_source" "server/udev"
[    38.394] (II) input device 'AlpsPS/2 ALPS GlidePoint', /dev/input/event9 is tagged by udev as: Touchpad
[    38.395] (II) AlpsPS/2 ALPS GlidePoint: no resolution or size hints, assuming a size of 69x50mm
[    38.395] (II) input device 'AlpsPS/2 ALPS GlidePoint', /dev/input/event9 is a touchpad
[    38.395] (**) Option "config_info" "udev:/sys/devices/platform/i8042/serio1/input/input8/event9"
[    38.395] (II) XINPUT: Adding extended input device "AlpsPS/2 ALPS GlidePoint" (type: TOUCHPAD, id 10)
[    38.396] (**) Option "AccelerationScheme" "none"
[    38.396] (**) AlpsPS/2 ALPS GlidePoint: (accel) selected scheme none/0
[    38.396] (**) AlpsPS/2 ALPS GlidePoint: (accel) acceleration factor: 2.000
[    38.396] (**) AlpsPS/2 ALPS GlidePoint: (accel) acceleration threshold: 4
[    38.397] (II) input device 'AlpsPS/2 ALPS GlidePoint', /dev/input/event9 is tagged by udev as: Touchpad
[    38.397] (II) AlpsPS/2 ALPS GlidePoint: no resolution or size hints, assuming a size of 69x50mm
[    38.397] (II) input device 'AlpsPS/2 ALPS GlidePoint', /dev/input/event9 is a touchpad
[    38.397] (II) config/udev: Adding input device AlpsPS/2 ALPS GlidePoint (/dev/input/mouse0)
[    38.398] (II) No input driver specified, ignoring this device.
[    38.398] (II) This device may have been added with another device file.


libinput-list-devices gives:

Device:           AlpsPS/2 ALPS GlidePoint
Kernel:           /dev/input/event9
Group:            5
Seat:             seat0, default
Size:             73.07x51.13mm
Capabilities:     pointer 
Tap-to-click:     disabled
Tap-and-drag:     enabled
Tap drag lock:    disabled
Left-handed:      disabled
Nat.scrolling:    disabled
Middle emulation: enabled
Calibration:      n/a
Scroll methods:   *edge 
Click methods:    none
Disable-w-typing: enabled
Accel profiles:   none
Rotation:         n/a