On Sun, Aug 19, 2018 at 12:35:09AM -0400, John Arbuckle wrote:
> When the user moves the mouse and moves the scroll wheel at the same
> time, the mouse cursor's movement becomes erratic in Windows 3.1. With
> this patch if the mouse is in ps/2 mode and the scroll wheel is used,
> the command queue is reset. This does not fix the erratic mouse
> problem in Windows NT 4.0.
I don't think we need to reset the queue. Just ignoring the z axis
value for type 0 should do. Can you try this?
--- a/hw/input/ps2.c
+++ b/hw/input/ps2.c
@@ -661,6 +661,8 @@ static int ps2_mouse_send_packet(PS2MouseState *s)
/* extra byte for IMPS/2 or IMEX */
switch(s->mouse_type) {
default:
+ s->mouse_dz = 0;
+ dz1 = 0;
break;
case 3:
if (dz1 > 127)
cheers,
Gerd
