On Thu, Aug 02, 2018 at 08:20:38AM +0200, Josh Simmons wrote: > On Thu, Aug 2, 2018 at 7:49 AM, Peter Hutterer <[email protected]> > wrote: > > > > and since devices don't give you anything < 1 unit delta, subpixel isn't > > really a thing unless you lower the speed setting. > > > > So perhaps I'm missing something, but the raw events as reported by > libinput debug-events do in fact have sub-unit precision? > > event8 POINTER_MOTION +7.14s 0.00/ -0.94 > event8 POINTER_MOTION +7.20s 0.94/ 0.00 > event8 POINTER_MOTION +7.21s 0.57/ 0.00 > event8 POINTER_MOTION +7.21s 0.67/ 0.00 > event8 POINTER_MOTION +7.22s 0.74/ 0.00 > event8 POINTER_MOTION +7.34s 0.00/ -0.64
did you run this with --set-profile=flat? this tool is a completely separate context, it won't see what config options you have applied in X or Wayland. > But I'm not really sure where the accumulation into singular device > units is coming from? Because it doesn't seem like it _should_ be > necessary - my mouse is capable of reporting at a much higher > resolution than integer device coordinates - regardless of the > sensitivity. At least it seems it should be that way? nah, not without scaling. The device always reports in integers only, but those integers have a physical reference point - the resolution of the device in DPI. Of course the device won't tell us that (unless you know the magic protocol, if it has one). So regardless of the resolution you set, the minimum movement is always 1/1. Just happens that the physical distance you need to move is less. Cheers, Peter _______________________________________________ wayland-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/wayland-devel
