I have the same issue on iMac 20" (ATI Radeon X1600) with Ubuntu running in Parallels VM. Boot splash worked fine in Dapper, but after upgrading to Edgy beta, it's just the black screen with no error messages. Removing splash from menu.lst kernel line works fine and adding a vga= option with splash left on also sort of works (you can see the splash but it doesn't wrap right and on shutdown it's not black but not readable either).
I have the same issue on iMac 20" (ATI Radeon X1600) with Ubuntu running in Parallels VM. Boot splash worked fine in Dapper, but after upgrading to Edgy beta, it's just the black screen with no error messages. Removing splash from menu.lst kernel line works fine and adding a vga= option with splash left on also sort of works (you can see the splash but it doesn't wrap right and on shutdown it's not black but not readable either).