On Tue, 25 Jun 2002, Adam Luchjenbroers wrote:
>
> 1) What do I need to do to make available to a non-root user. I've already
> added that user to the group kmem, but that has had no effect. What do I need
> to do?
You have to change the permissions of /dev/mem. Note that doing this
just elimiated any security your system had. DGA really shouldn't be
used and I regret that it's still in the X-server. I would like it
to disappear in XFree86 5.0.
>
> 2) If I'm running a DGA application and it stops working, is there any way
> for me to safely get back out to X or to the shell? Ctrl-Alt-Backspace causes
> a crash which looks to be the result of DGA not giving control back to X when
> X tries to quit.
It Ctrl-Alt-Backspace crashes, that would be a driver or server
bug. It worked at one time.
>
> 3) Is the keyboard and mouse data received differently under DGA than under
> X? If so, how is it different?
>
Pointer events give relative motion instead of absolute. We had
been discussing fixing the XINPUT extension to do that instead so
people wouldn't have to use DGA to get that behavior.
Mark.
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