jbo@insane.engineer writes: > Hello folks, > > I'm experiencing issues with the touchpad after resuming from suspend. > > System: > - Lenovo ThinkPad X1 Carbon Gen9 > - FreeBSD 13.1-STABLE (March 27 2022) > > After a regular boot, the touchpad is working as expected. If I then use > zzz(8) to suspend the system and resume afterwards, the touchpad is behaving > weirdly: > - Regular cursor movements (one finger) are very, very laggy. It feels like > the system is updating the cursor's position only once ever 800ms (or there > about). > - Anything multi-touch related such as two-finger scrolling is not working > at all. > > The keyboard and the trackpoint (joystick-thingy) continue to work as > expected after resuming from suspend. > > I'm using libinput as the input driver. Here's the relevant part of my Xorg > config: > > Section "InputClass" > Identifier "libinput touchpad catchall" > Driver "libinput" > MatchIsTouchpad "on" > MatchDevicePath "/dev/input/event*" > Option "AccelSpeed" "0.5" > Option "ClickMethod" "clickfinger" > Option "DisableWhileTyping" "on" > Option "HorizontalScrolling" "on" > Option "LeftHanded" "off" > Option "NaturalScrolling" "on" > Option "ScrollMethod" "twofinger" > Option "Tapping" "on" > Option "TappingDrag" "on" > Option "TappingDragLock" "off" > EndSection > > Any idea how to track down the problem, what the problem could be or how to > fix this? > I could not spot anything obviously in Xorg's log.
I seem to remember that some Thinkpads required tweaking the flags for the psm device for the pointer to work after resume. Could be worth a try, even though you write that the trackpoint is ok. See the manual page for psm(4). Bengt
