[Wayland-bugs] [Bug 85632] New: Improve pointer acceleration for high-resolution mice

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85632

            Bug ID: 85632
           Summary: Improve pointer acceleration for high-resolution mice
           Product: Wayland
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: libinput
          Assignee: wayland-bugs at lists.freedesktop.org
          Reporter: peter.hutterer at who-t.net
                CC: benjamin.tissoires at gmail.com, jadahl at gmail.com,
                    jwrdegoede at fedoraproject.org

Same as bug #79056 but for mice.

The pointer acceleration uses device-specific input data to apply acceleration.
That data is resolution-dependent, the deltas provided by a low-resolution
mouse are less than the ones provide by a high-resolution mouse.

This causes high-resolution mice to max out the pointer acceleration quickly,
effectively running at maximum acceleration at all times.

The main difficulty here is: devices do not allow detection of the actual
resolution, maintaining a database of all devices with a non-standard
resolution is going to be difficult. Even unclear if it's possible at all, what
if devices share USB IDs? Good suggestions welcome.

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