[Spice-devel] Adding support for mouse buttons SIDE and EXTRA (often scroll wheel push left or right)

[james harvey]

On Sun, Dec 16, 2018 at 7:03 PM james harvey <jamespharvey20 at gmail.com> wrote:
>
> I have a Logitech G600 mouse.  The scroll wheel can be pushed left or right.
>
> <snip>

Removing spice, the buttons work.  Changing to running QEMU directly
rather than as a systemd service, and changing the options to drop
spice and add "-device VGA" gives the native QEMU viewer.  Through it,
on an Arch host, evtest sees the BTN_SIDE and BTN_EXTRA events.  Both
when using the default PS/2 emulation and with "-device
virtio-mouse-pci".

So, it's definitely narrowed down to spice not supporting forwarding
these buttons.  It's not a QEMU or guest driver issue.