Re: Linux and virili (was BOUNCED something, something

Tuukka Toivonen (tuukkat@stekt.oulu.fi)
Tue, 11 Feb 1997 15:47:38 +0200 (EET)


>What would be the risks in making the registers writable by anyone who has
>the rights to open the VGA device? The only two I can think of are 1) that
>someone might be able to peek at the contents of the console screen and 2)
>that someone could write a hostile program to block others from using the
>console.

There is also risk 3) The display could be damaged physically. Yes, some
(bigger) displays can be even damaged by setting bad values in VGA control
signal frequency registers.

| Tuukka Toivonen <tuukkat@stekt.oulu.fi>
| Homepage: http://stekt.oulu.fi/~tuukkat/
| Try also finger -l tuukkat@stekt.oulu.fi
| Studying information engineering at the University of Oulu
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