That's interesting to know. I still have the Weasel card which may do some of the same things. The video text buffer for classic VGA systems is a specific range of memory. If you remember, each character is is a 16-bit word. Eight bits are the attribute such as color and whether or not it should be flashing and the other 8 bits determine the actual character such as a blank space or an upper or lower case letter plus a whole bunch of ASCII graphics. Remember the fun of having your speech synthesizer read every horizontal piece of a box that went the width of the screen. There were corner pieces such that one could draw polygons and create ASCII art. It was like software Legos that you had to listen to. I wrote my DOS screen reader in Microsoft assembler and a repeat detector was one of the first subroutines I wrote to preserve some degree of sanity. I'll let people who know me be the judge as to whether or not I wrote it in time. Three of the four old PC's have an on-board VGA chip set so I don't remember if the Weasel can run with another VGA card in place or not. I'll be surprised if it does. I would love to play with that Epiphan video to .UVC converter but it is four-hundred US Dollars which I can afford but it is not a trivial sum so I would be forced to actually write the conversion software. That sanity I think I saved by writing the repeat shutdown subroutines would probably dissolve in this project. The story in our local paper would likely be that police were called to our address because a mentally-deranged blind retired programmer was found naked, screaming and rolling in the street and impeding traffic. I will get the Weasel card and see if it can coexist with an existing video card. I'm not holding my breath. Just out of curiosity, What did early Braille displays do when confronted by the upper 128 ASCII values? This is part of the reason why we have the modern character sets such as UTF8 and others so that all written languages can display properly these days. Anyway, thanks for more food for thought. Martin McCormick WB5AGZ Linux for blind general discussion <blinux-list@xxxxxxxxxx> writes: > When i had a pc with Isa slots i borrowed a papenmeier braillex 80 and > put their Isa card in and then bios works flawlessly. _______________________________________________ Blinux-list mailing list Blinux-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/blinux-list