I was able to acquire one of these 21" displays and wonder whether it is
supported on 1.4.1-i386 platforms.  It has its own video card with a
Cirrus Logic GD5420 chipset which my custom kernel finds as
'vga0 at pci0 dev 19 function 0: Cornerstone Technology product 0x0002
(rev 0x01)' and 'Cornerstone Technology product 0x0002 (undefined subclass 
0x00, rev 0x01) at pci0 dev 19 function 1 not configured'. XF86Setup-3.3.6
(compiled yesterday) can't build a useable config file at any resolution.

I also tried, without luck, driving it through a Trident 3DImage 975 card.

Does anyone remember these old displays? 

George E Sollish	Chief Engineer  	 Auto Gear Equipment
			Host	 		 Classic-FM's Listening Room
			Project Manager		 The Payne Lake Project