SUMMARY Using the mouse settings menu to select a 'flat' pointer acceleration profile does not properly set the libinput property, and as a result acceleration cannot be disabled. This problem started occurring after upgrading from Fedora 37 to Fedora 38, and I am using Xorg. I am able to set a flat acceleration profile using xinput , so this issue appears to be with Plasma. STEPS TO REPRODUCE 1. Open mouse settings 2. Select flat acceleration profile 3. Apply settings 4. Check the mouse acceleration profile with xinput OBSERVED RESULT The acceleration profile is not changed. xinput list-props 'BenQ ZOWIE BenQ ZOWIE Gaming Mouse' | grep -i profile libinput Accel Profiles Available (305): 1, 1, 1 libinput Accel Profile Enabled (306): 1, 0, 0 libinput Accel Profile Enabled Default (307): 1, 0, 0 EXPECTED RESULT I expect that the flat profile is set, which is "0, 1" not "1, 0, 0". See: https://wiki.archlinux.org/title/Mouse_acceleration#Disabling_mouse_acceleration xinput list-props 'BenQ ZOWIE BenQ ZOWIE Gaming Mouse' | grep -i profile libinput Accel Profiles Available (305): 1, 1, 1 libinput Accel Profile Enabled (306): 0, 1 libinput Accel Profile Enabled Default (307): 1, 0, 0 SOFTWARE/OS VERSIONS Linux/KDE Plasma: Fedora 38 KDE Plasma Version: 5.27.4 KDE Frameworks Version: 22.12.3 Qt Version: 5.15.9 ADDITIONAL INFORMATION To set a flat acceleration profile with xinput: input --set-prop 'BenQ ZOWIE BenQ ZOWIE Gaming Mouse' 'libinput Accel Profile Enabled' 0, 1
*** This bug has been marked as a duplicate of bug 468217 ***