<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#c8">Comment # 8</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#c7">comment #7</a>) > synaptics pointer acceleration is... complicated and almost impossible to > reproduce. Amongst other things, it depends on your screen resolution. > <a href="https://who-t.blogspot.com.au/2016/09/synaptics-pointer-acceleration.html">https://who-t.blogspot.com.au/2016/09/synaptics-pointer-acceleration.html</a> I don't understand because I'm not a developer. I could understand that synaptic was written in a confusing and complicated way, but his behavior is better then libinput. You have your reason from developer point of view, but I'm not a developer. I'm a user. I don't care about code. I care about things work on my system in a good and comfortable way. libinput works, but it's not comfortable. And it's less customizable. I can only set the acceleration speed (that's even broken on Plasma desktop, but I know that's KDE developers fault). If I set it higher, the pointer is too reactive. If I set it lower, the pointer is good for short movements, but not for large ones. If a find the right value in the middle, the pointer is good for large movements, but not for short ones. And I can't even disable the acceleration. I thought updates was an improvement, but I don't see any improvement moving from synaptics to libinput. I would not even care about that issue, but synaptics became deprecated and in the future it will not work with further updates (especially on Arch Linux since it's a rolling release distro). So I'm not really free to use synaptics because libinput is the default supported touchpad driver and sooner or later I have to use it permanently. Please, don't take these words like an offense, I'm only trying to explain my point of view. > we only expose config options when there's something to configure. In this > case we only have one profile, so no point to expose an option. Are you saying my touchpad has only "accelerated profile"? I don't remember (I'm using libinput now because I'm trying to get used to its behavior) but I'm pretty sure that I could disable the acceleration on synaptics. Even on Windows by Synaptycs proprietary driver. Maybe I'm wrong but I think my touchpad could work without acceleration, so it seems more a libinput missing feature. > maybe. it's always hard to infer "feel" from pure recording and on top of > that i'm bottlenecking quite badly, so any help is appreciated. The > acceleration code is all in src/filter.c and it's not that hard to > understand (there are plenty of comments, anyway). Don't know how to do and, as I said before, I'm not a developer. :(</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>