Description of problem:
I'm running qemu-kvm (git hash e54f008ef8f968cfc2f3ecab78491d180fa31efc, kvm module from F17 - qemu-kvm-1.0-17.fc17.x86_64), with spice (git hash c211774422455802299545b19ffdffd9496fdc31) and F17 VM (installed from the live beta to a hard disk, then fully updated to latest available packages).
X always crashes with the following in /var/log/gdm/:0.log:
bpp == 8 triggers bugs in spice apparently
slots start: 1, slots end: 7
done reset
primary is 0x1d1f700
   Zero width or height
new stride: 10240 (display width: 2560, bpp: 4)
   Bad bpp: 1 (1)
   Bad bpp: 1 (1)
   Bad bpp: 1 (1)
   Bad bpp: 1 (1)

qemu-kvm command line:
./x86_64-softmmu/qemu-system-x86_64 -spice port=6902,disable-ticketing,jpeg-wan-compression=always,zlib-glz-wan-compression=always,playback-compression=on -k en-us -name F17_Beta -boot c -drive file=~/f17a.qcow2,if=virtio,cache=writethrough,media=disk,format=qcow2 -drive file=~/Downloads/Fedora-17-Beta-x86_64-Live-Desktop.iso,if=ide,media=cdrom -soundhw hda -m 2048 -cpu core2duo,+x2apic -smp 2 -balloon none -monitor stdio --parallel none -vga qxl -uuid 93226831-ade7-47ea-be28-5e1926d0b7a7

Version-Release number of selected component (if applicable):
0.0.22

How reproducible:
Always

Steps to Reproduce:
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Actual results:


Expected results:


Additional info: