Resp.: testing strategy

[Fernando Carrijo]

Hi,

For the definition of "dix", you might want to take a look at the
first few pages of a document entitled "Definition of the Porting
Layer for the X v11 Sample Server". As ajax once said, it is, as a
whole, a good source of information about the X Server in the
architectural level. I just don't know if it is as up to date as we
would like it to be.

What I know about "kdrive" is that it is a Keith Packard's proof of
concept implementation of the X Server, which could be run on small
devices; or at least on devices with low availability of resources. I
overheard someone saying in irc that kdrive has faced a kind of
obsolescence, since the reference implementation of the X Server has
incorporated lots of its ideas; I'm not sure about that though.

Hope it helps,
Fernando Carrijo

2008/7/20, Chuck Robey <chuckr at telenix.org>:
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> Daniel Stone wrote:
>> On Sat, Jul 19, 2008 at 09:13:09PM -0400, Chuck Robey wrote:
>>> I got a suggestion a while back, that I could use dbus along with a
>>> dbus-enabled
>>> xserver to be able to load & unload Xinput drivers.  I recently finished
>>> rebuilding all of the Xorg stuff, so I would have my own server that my
>>> Xinput
>>> module is built for.  Since then, I've become aware (at least, I've
>>> become
>>> suspicious about) the possibility of running an xserver *in*a*window* on
>>> the
>>> same machine, so I could run my own working xserver (where I run my
>>> terminals &
>>> my editor sessions) and another different xserver, whose output goes to a
>>> window, doesn't bother my pre-existing xserver, and lets me bring it up &
>>> take
>>> it down independently for quick'n'easy Xinput driver testing (so I could
>>> also
>>> get the Xorg.0.log on the little xserver).  Trouble on doing this is, I
>>> dunno
>>> how, dunno what tools to use, nothing to even begin to investigate.  I
>>> don't
>>> mind reading the docs (if there are any) but I need some suggestions on
>>> what the
>>> tools are that I need, and if, in fact, what I want is at all possible.
>>
>> Not really.  Xephyr does that, but it's based on KDrive (hw/kdrive)
>> rather than the Xorg DDX (hw/xfree86).  IOW, it's a trap.
>>
>> (Yes, they should be unified, and there's no reason why input is
>> abstracted at that level instead of at the DIX, aside from the usual
>> history.)
>
> Man, I really, really hate asking questions before I've been able to do a
> reasonable amount of reading.  It makes me feel like a freeloader.  But,
> that's
> what xorg is forcing me into, one step after another.  In this one email, I
> just
> spent the last half hour looking vainly for any hint as to what several
> different terms might mean, with no luck at all.
>
> What's a dix?  I *think* I saw the words "device independent Xserver), but
> I'm
> not terribly sure what the actually means, what can this thing do?  Is any
> of it
> ready to be used even by developers, yet?
>
> Second, I never heard of a kdrive, and on this one, I can't even hazard the
> least guess.  Same questions as above.
>
> Lastly, xephyr.  I get it that, in conjunction somehow with kdrive, it's
> xome
> sort of xserver.  I built all of Xorg successfully, but I can't find xephyr
> anywhere under /usr/X11R7.4 (my X11BASE), so I need to go back, rebuild
> everything, and see if I can either force an install, or maybe install it by
> hand.  Is there any example anywhere, of a command line that installs
> xephyr,
> and shows me how I have to go about setting up a config file for it, so I
> can
> get my experimental driver installed on it?
>
> I wonder, if the dix really is a defice independent Xserver, why would you
> need
> a xephyr?  I don't mind it, just trying to understand how things hook
> together.
>
> God, I really hate freeloading like this, so if you folks know of anything
> you
> can think of which I should have read in advance of this, I'd really
> appreciate
> being pointed that way.
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