High Resolution Scroll Wheel Support Being Worked On For Wayland
Written by Michael Larabel in Wayland on 3 April 2019 at 12:09 PM EDT. 25 Comments
WAYLAND --
The high resolution scrolling support in Linux 5.0 has been a headache to say the least. After being ejected from Linux 4.20 following early fall-out, the support was merged for Linux 5.0 but the user-space support has yet to stabilize.

Red Hat input expert Peter Hutterer who has been involved in this high-resolution scroll wheel support for the likes of Logitech and Microsoft mouse referred to the situation as "a bit of a struggle to say the least."

This support on the user-space side was delayed from the current libinput release and so the support in this input handling library won't premiere now for some months down the road. Peter has also been working on the Wayland protocol support for this high resolution scrolling, which in the end should yield more precise scrolling via the scroll wheels on these high-end mice.

This high resolution wheel scrolling support involves Wayland protocol work as well as to the common compositors like Weston, Mutter, KWin, and WLROOTS.

Those interested in all of the technical details can see this lengthy mailing list post by Hutterer outlining the intended changes for supporting this Linux desktop functionality.

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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