[ First off, it's better to post to a DRI list about the DRI ]

On Son, 2002-11-03 at 06:06, Kacper Wysocki wrote:

> I've finally gotten what I want (within XF86's limitations) for my X, 
> namely
> -radeon accel working(windows are still horribly sluggish-try it and 
> see: grab a window by its bar and shake it. Repeat on 
> well-configured(yeah right) winblows with same gfx card. You see what I 
> mean?)

Fortunately, I can't do that comparison here, but it's pretty fast, even
with a window that covers the whole screen. Does the lack of perfect
smoothness bother you? Note that the window manager can make a huge
difference there, e.g. sawfish was much worse than metacity here.


> -dual headed, no xinerama (better than bug-eyed xinerama)
> -xv working
> -dri working (Only in 16bit, one-headed and while root)
> 
> All this by building from CVS, with the help of one Andrew 
> Atrens(thanks!)
> 
> But of course I'm not satisfied with this:
> 
>     > (WW) RADEON(0): Direct Rendering Disabled -- Dual-head 
> configuration
>      > is not working with DRI at present.
>      > Please use only one Device/Screen section in your XFConfig file.

[...]

> Now my question is: if there's a problem in Xinerama, and I don't run 
> xinerama, can I safely enable this?

If it was that simple, it wouldn't have been disabled in the first
place...

> Or does "dual-head configuration" include dualheaded setups that don't
> run xinerama?

It does say 'dualhead', not 'Xinerama', for a reason.

The 3D driver has absolutely no notion of a shared entity yet. What
should work would be implementing dualhead with a single framebuffer on
top of the CloneDisplay support in current CVS.


> Why is drm access restricted to root, and how do I go about changing 
> it? Simple /dev/dri permissions issue here(I modified this, but can't 
> check it right now)? 

Probably, see http://www.xfree86.org/current/DRI6.html#10


> And what gives with the 16bit(and 32bit, haven't checked) only support?

Radeons can only render 3D primitives in depth 16 and depth 24, fbbpp
32. Depending on the desktop resolution and the available video RAM, the
DRI may only be enabled in depth 16.


-- 
Earthling Michel D�nzer (MrCooper)/ Debian GNU/Linux (powerpc) developer
XFree86 and DRI project member   /  CS student, Free Software enthusiast

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