I have been tracking code flow inside qemu, nothing special found yet. But I do find a interesting part about spice-0.12.7 in opensuse Leap 42.2. https://build.opensuse.org/package/view_file/openSUSE:Leap:42.2:Update/spice/spice.spec?expand=1 --disable-smartcard but in currentspice0.12.8 (https://build.opensuse.org/package/view_file/Virtualization/spice/spice.spec?expand=1) it becomes: %if 0%{?is_opensuse} --enable-smartcard %else --disable-smartcard %endif I also checked qemu configure file, all enable-smartcard for opensuse. so I rebuild a spice package to enable smartcard (https://build.opensuse.org/package/binaries/home:lyan:branches:openSUSE:Leap:42.2:Update/spice?repository=openSUSE_Leap_42.2_Update) Could anyone give it a try? Thanks.