X11 - radeon or radeonhd? (ATI Radeon HD 2400 XT)

[Roland Smith]

On Fri, Jan 02, 2009 at 01:42:38PM -0500, Adam K Kirchhoff wrote:
> On Friday 02 January 2009 13:32:57 Ewald Jenisch wrote:
> > Hi,
> >
> > I've got a PC (Dell) that came with a Radeon HD 2400 XT (RV610 chipset).
> >
> > Afaik there isn't 3D support yet with this card, so my primary goal is
> > to get it working as far as 2D and speed is concerned (I don't want to
> > go for "vesa" if at all possible)
> >
> >
> > Which driver should I use for this card - radeon or radeonhd?
> >
> > Anything to consider besides having either "Driver radeon" or "Driver
> > radeonhd" in the xorg.conf in order to get going?
> >
> > Thanks much in advance for any clue,
> > -ewald
> 
> Either radeon or radeonhd should be fine.  Feature-wise, they are at the same 
> level.  No other changes are required.
> 
> Very recently DRM support was added for those cards, giving them much
> faster 2D acceleration via EXA (without DRM support, only XAA is
> supported) 

I've tried a HD3450 (RV620 chip) and a X1650Pro (RV535 chip) with both
ati and radeonhd drivers.

As of radeonhd 1.2.4 the X1650Pro works fine with XAA, to which it
defaults. EXA wasn't very fast:

(--) Chipset RV535 found
(**) RADEONHD(0): Selected XAA 2D acceleration.
(**) RADEONHD(0): Option "XaaNoOffscreenPixmaps" "true"
(II) RADEONHD(0): Using XFree86 Acceleration Architecture (XAA)
        Screen to screen bit blits
        Solid filled rectangles
        8x8 mono pattern filled rectangles
        Indirect CPU to Screen color expansion
        Solid Lines
        Scanline Image Writes
        Setting up tile and stipple cache:
                32 128x128 slots
                28 256x256 slots
                16 512x512 slots


The HD3450 only worked with shadowfb accelleration:

(--) Chipset RV620 found
(**) RADEONHD(0): Depth 24, (--) framebuffer bpp 32
(**) RADEONHD(0): Option "AccelMethod" "exa"
(WW) RADEONHD(0): RV620: HW 2D acceleration is not implemented yet.
(**) RADEONHD(0): Selected ShadowFB.
(II) RADEONHD(0): Xv: No Textured Video possible without the Command Processor.

Roland
-- 
R.F.Smith                                   http://www.xs4all.nl/~rsmith/
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