<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - Touchpad hysteresis doesn't work" href="https://bugs.freedesktop.org/show_bug.cgi?id=104788#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - Touchpad hysteresis doesn't work" href="https://bugs.freedesktop.org/show_bug.cgi?id=104788">bug 104788</a> from <a class="email" href="mailto:Hi-Angel@yandex.ru" title="Hi-Angel <Hi-Angel@yandex.ru>"> Hi-Angel</a> <pre>(In reply to Peter Hutterer from <a href="show_bug.cgi?id=104788#c2">comment #2</a>) > libinput looks at the touchpad motion and if the finger is down for some > time without motion events (i.e. without wobbles) the motion hysteresis is > disabled. See <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED FIXED - Somehow conditionalize hysteresis (hardware black/whitelist, device property introspection, user-exposed setting, etc)" href="show_bug.cgi?id=98839">bug 98839</a>. > > This would explain why it works after login and then starts wobbling later - > likely after the hysteresis was disabled. Once disabled, it stays disabled > until you log out/restart. > > You can easily verify this with sudo libinput debug-events --verbose, pipe > it into a file and check for a hysteresis disabled message once it starts > wobbling. > > To debug this further though I'll need an evemu record that triggers this > because the one you attached doesn't seem to disable the hysteresis. Thanks for your response. Any way to enable motion hysteresis in running system? I'm asking because it's a bit problematic to catch the moment it's is still working. For example when I installed latest git version for testing, I restarted sddm, and upon logging into system hysteresis have already been disabled. That's the reason I was surprised when the next day after reboot it was working for some time. But if there's no way, of course I'll try to catch the moment manually.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>