Since there wasn't a reply to my question since more than half a year, I'm assuming that this does not affect upstream QEMU anymore. Thus I'm removing upstream QEMU from this ticket now.
** No longer affects: qemu -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1718719 Title: qemu can't capture keys properly under wayland Status in XServer: New Status in qemu package in Ubuntu: Confirmed Status in xorg-server package in Ubuntu: Incomplete Bug description: This appears to be different than the previous similar bugs; patches do look to be applied to use libinput in the wayland case. Still: unknown keycodes `(unnamed)', please report to qemu-devel@nongnu.org I am using qemu-system-x86 1:2.10+dfsg-0ubuntu1 on artful. Many key inputs work correctly, but at boot the system will not properly catch the arrow keys, the above error shows up immediately after hitting Esc (for instance) to get to the boot menu. Booting from CD onto a daily Ubuntu desktop image, I can't navigate the splash menu. The same works correctly through virt-manager (which uses spice AFAICT, but wayland tends to crash when running virt-manager), and things work if I switch my session to Xorg rather than wayland. To manage notifications about this bug go to: https://bugs.launchpad.net/xserver/+bug/1718719/+subscriptions