I have a related problem in Gutsy. On wake from suspend or hibernate,
my touchpad seems to be 'reset' such that tapping is enabled and
scrolling is disabled, and configuration via SHM doesn't have any
effect. Now I realize that this is probably because after resume,
events are coming via PS/2 emulation instead of the Synaptics driver, as
indicated by the following from my Xorg.0.log:
(X server startup/before suspend):
********************************************************************
(II) Synaptics touchpad driver version 0.14.6 (1406)
(--) Synaptics Touchpad auto-dev sets device to /dev/input/event3
(**) Option "Device" "/dev/input/event3"
(**) Option "SHMConfig" "on"
(**) Option "VertEdgeScroll" "on"
(**) Option "HorizEdgeScroll" "on"
(**) Option "TapButton1" "0"
(**) Option "TapButton2" "0"
(**) Option "TapButton3" "0"
(--) Synaptics Touchpad touchpad found
(**) Option "SendCoreEvents" "true"
(**) Synaptics Touchpad: always reports core events
(II) XINPUT: Adding extended input device "Synaptics Touchpad" (type: MOUSE)
(II) XINPUT: Adding extended input device "Configured Mouse" (type: MOUSE)
(II) XINPUT: Adding extended input device "Generic Keyboard" (type: KEYBOARD)
Synaptics DeviceInit called
SynapticsCtrl called.
(II) Configured Mouse: ps2EnableDataReporting: succeeded
Synaptics DeviceOn called
(--) Synaptics Touchpad auto-dev sets device to /dev/input/event3
(**) Option "Device" "/dev/input/event3"
(--) Synaptics Touchpad touchpad found
(during suspend/hibernate):
********************************************************************
Synaptics DeviceOff called
(after resume):
********************************************************************
Synaptics DeviceOn called
Synaptics Touchpad no synaptics event device found (checked 17 nodes)
(EE) xf86OpenSerial: Cannot open device /dev/input/event3
No such file or directory.
(WW) Synaptics Touchpad: cannot open input device
(II) Configured Mouse: ps2EnableDataReporting: succeeded
--
/dev/input/mice duplicates synaptics communication and makes configuring
synaptics impossible
https://bugs.launchpad.net/bugs/180374
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