Attached is a screenshot I took on my laptop. The native resolution is big
(don't remember on top of my head ;), obviously larger than 800x600. Although I
saw the full UI, the screenshot got clipped to 800x600.
Created attachment 148690 [details]
Are there any tracebacks or other obvious error messages printed on tty1? Is
there a /tmp/firstboot-crash.log file? Can you reproduce this by running
firstboot --debug from a terminal inside X?