[systemsettings] [Bug 393072] New: Mouse acceleration profile is applied to trackpoint
    Jacopo De Simoi 
    bugzilla_noreply at kde.org
       
    Thu Apr 12 22:10:22 BST 2018
    
    
  
https://bugs.kde.org/show_bug.cgi?id=393072
            Bug ID: 393072
           Summary: Mouse acceleration profile is applied to trackpoint
           Product: systemsettings
           Version: unspecified
          Platform: Compiled Sources
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: kcm_mouse
          Assignee: unassigned-bugs at kde.org
          Reporter: wilderkde at gmail.com
                CC: unassigned-bugs at kde.org
  Target Milestone: ---
I have a lenovo Thinkpad and I occasionally connect an external mouse when the
laptop is docked. 
The acceleration profile for the Trackpoint is set to be Flat on xorg.conf
Once the mouse is plugged in, the configuration is overwritten by the kcm to be
the configuration for the mouse. (accelerated) 
This /is/ a kcm bug, as this behavior /does not/ occur under a plain startx
session.
I think the issue is in 
kde/workspace/plasma-desktop/kcms/input/backends/x11/x11mousebackend.cpp:258
    XI2ForallPointerDevices(m_dpy, [&] (XIDeviceInfo *info) {
        libinputApplyAccelerationProfile(info->deviceid,
settings.currentAccelProfile);
    });
I can see that the same accel profile is applied to every pointer. regardless
of what explicitly specified in xorg, or what the current profile is.
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