Hi ----- Original Message ----- > On Wed, 2017-08-09 at 00:47 +0200, Marc-André Lureau wrote: > > qemu uses wheel-up/down button events for mouse wheel input, however > > linux applications typically want REL_WHEEL events. > > --verbose please. > > Both should work just fine.
I haven't done extensive review of all input code on linux, but from what I remember the event got dropped here: https://cgit.freedesktop.org/xorg/driver/xf86-input-evdev/tree/src/evdev.c#n2720 It seems BTN_GEAR isn't clearly defined either. Perhaps libinput does a better job at mapping the event, but we should consider older guests. Spice agent is using rel-wheel events, and we never had issues with it. thanks
