I nerfed the AppArmor problem easily enough by adding the following line
to /etc/apparmor.d/abstractions/libvirt-qemu:
@{PROC}/*/auxv r,
and doing /etc/init.d/apparmor restart. Confirmed: DENIED messages went
away.
However, still no BIOS screen if booting in qxl video mode; also still
no display in Win7 itself once loaded. I tried installing the spice-
guest-tools in Win7 VM, and display stopped working about 85% of the way
through installation - this was with already-working display in cirrus
video mode. Now, in cirrus mode video works until guest OS loads but
then "freezes" (mouse and keyboard input do not produce any change in
displayed video), and qxl video mode produces plain black screen in both
BIOS and in guest OS.
Sadface.
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https://bugs.launchpad.net/bugs/958549
Title:
Black screen on guest with anything except Cirrus
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