Bug#221570: debconf chooses wrong resolution at High priority
On my iBook with my debconf priority set to High, I got the option to
set my highest resolution supported (via the medium-complexity modeline
selector), but the default for resolutions to be used by X was set to
800x600 and 640x480, not including 1024x768 (which is all my iBook
supports). Since my priority was set to High, I couldn't add 1024x768 to
this and I got a useless screen until manually running dpkg-reconfigure.