<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Can't manage acceleration profile on HP 255 G5 "SynPS/2 Synaptics TouchPad"" href="https://bugs.freedesktop.org/show_bug.cgi?id=99695#c6">Comment # 6</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Can't manage acceleration profile on HP 255 G5 "SynPS/2 Synaptics TouchPad"" href="https://bugs.freedesktop.org/show_bug.cgi?id=99695">bug 99695</a> from <a class="email" href="mailto:giuseppemargarita@gmail.com" title="giuseppemargarita@gmail.com">giuseppemargarita@gmail.com</a> <pre>(In reply to Peter Hutterer from <a href="show_bug.cgi?id=99695#c5">comment #5</a>) > which ones of those did you actually configure though? just because libinput > doesn't have an option doesn't mean it doesn't exist, e.g. the noise > cancellation in libinput is basically the same as synaptics. as for the > actual speed, it's a bit hard to figure out what synaptics does... I've actually configured libinput because I opened this bug report and want to help you to find the solution. The options are listed in the first comment. I wrote the configuration in a .conf file in xorg directory because I can't configure libinput from Plasma desktop. Unfortunately Plasma 5 has not a full support to libinput, so I can't configure it properly from system settings. In system setting I can't change some options and others are grayed. There's also a bug which I can't set the right acceleration speed. I talked about that here: <a href="https://bbs.archlinux.org/viewtopic.php?id=222388">https://bbs.archlinux.org/viewtopic.php?id=222388</a> And found a workaround setting the right acceleration speed from an executable script run by Plasma at its startup. Anyway, libinput is too problematic for me and I will use synaptics because it's more comfortable. When using synaptics, the options used are the following (all configured by system setting in Plasma 5; no text xorg .conf file and no scripts are used): Device 'SynPS/2 Synaptics TouchPad': Device Enabled (142): 1 Coordinate Transformation Matrix (144): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000 Device Accel Profile (270): 1 Device Accel Constant Deceleration (271): 2.500000 Device Accel Adaptive Deceleration (272): 1.000000 Device Accel Velocity Scaling (273): 12.500000 Synaptics Edges (274): 1632, 5350, 1356, 4584 Synaptics Finger (275): 25, 30, 0 Synaptics Tap Time (276): 180 Synaptics Tap Move (277): 254 Synaptics Tap Durations (278): 180, 180, 100 Synaptics ClickPad (279): 0 Synaptics Middle Button Timeout (280): 75 Synaptics Two-Finger Pressure (281): 282 Synaptics Two-Finger Width (282): 7 Synaptics Scrolling Distance (283): 116, 116 Synaptics Edge Scrolling (284): 0, 0, 0 Synaptics Two-Finger Scrolling (285): 1, 1 Synaptics Move Speed (286): 1.000000, 1.750000, 0.034947, 0.000000 Synaptics Off (287): 2 Synaptics Locked Drags (288): 0 Synaptics Locked Drags Timeout (289): 5000 Synaptics Tap Action (290): 0, 0, 0, 0, 1, 2, 3 Synaptics Click Action (291): 1, 1, 1 Synaptics Circular Scrolling (292): 0 Synaptics Circular Scrolling Distance (293): 0.100007 Synaptics Circular Scrolling Trigger (294): 0 Synaptics Circular Pad (295): 0 Synaptics Palm Detection (296): 0 Synaptics Palm Dimensions (297): 10, 200 Synaptics Coasting Speed (298): 20.000000, 50.000000 Synaptics Pressure Motion (299): 30, 160 Synaptics Pressure Motion Factor (300): 1.000000, 1.000000 Synaptics Grab Event Device (301): 0 Synaptics Gestures (302): 1 Synaptics Capabilities (303): 1, 0, 1, 1, 1, 1, 1 Synaptics Pad Resolution (304): 89, 40 Synaptics Area (305): 0, 0, 0, 0 Synaptics Noise Cancellation (306): 28, 28 Device Product ID (266): 2, 7 Device Node (265): "/dev/input/event13" It would be great if you can reproduce the behavior of these options in libinput. But I can't configure noise cancellation and don't know if deceleration is available in libinput. > the current profile is the 'adaptive' profile, same as the mouse profile. > You can quite easily hack the source to use the flat profile instead but tbh > I doubt that's the behaviour you want either. Okay, but why can't I set the flat profile from the configuration? > the question is *why* this happens, since the acceleration itself should be > the same on any device, regardless of the resolution. So far I only found a > possible issue with the sampling rate but yours is within the same range as > my touchpad here, so shouldn't be affected by that. Any help in identifying > why your touchpad appears to accelerate when it shouldn't would be > appreciated. I don't know how, I gave you all I could report. Can't you find anything from evemu record?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>