[Bug 212219] psm device works until reboot or xorg restart
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Sun Aug 28 17:33:11 UTC 2016
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=212219
Bug ID: 212219
Summary: psm device works until reboot or xorg restart
Product: Base System
Version: 11.0-RC1
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: freebsd-bugs at FreeBSD.org
Reporter: bsd at abinet.ru
I have very strange problem with Dell XPS 13 Laptop (Skylake version). While
almost works flawlessly, touchpad has issue with hw.psm.synaptics_support=1
It works only ones! I mean, the first time I add synaptics support and boot
xorg - cursor moves, button clicks. After I restart xorg - buttons become
unresponsive. button2 event is not registered anymore, button1 event registered
maybe 1 time for 10 taps and it can stick in pressed state, leaving touchpad
completely unusable.
I recompiled kernel with psm_debug flag = 1 and noticed nothing suspicious. To
workaround the issue I must enable-disable device with xinput.
The interesting part is that on enable phase the system hangs until I tap the
touchpad.
I tried linux from pen drive - touchpad works, so this is not a hardware
problem.
synaptics driver has the same problem, however it survives xorg restart.
Touchpad becomes broken after reboot, in broken state Xorg.log is being rapidly
filled with synaptics driver attached to psm0 device - like driver attaches to
device in endless loop.
I have no idea what information provide - the problem looks completely insane
and unique.
CURRENT has the same problem.
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