Misreported VRAM

[Ancoron Luciferis]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Jerome Glisse wrote:
> On Mon, Dec 07, 2009 at 06:54:13PM +0000, Mike Lothian wrote:
>> I have a Radeon 4650 (RV730) :
>>
>>  01:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV730
>> PRO [Radeon HD 4650] [1002:9498]
>>
>> This should have 1GB DDR2 VRAM on board however my dmesg states differently
> 
> So far we don't use VRAM beyond PCI aperture which is 256M on your
> system. I am planing on adding support for unvisible ram this week.
> 
> Note that i don't think we have a driver which can take advantage
> of such amount of VRAM yet, except if you are driving 2 30" screen.
^^
And that is exactly what I'm planning for my X1950XTX (the first one
with 2x Dual-Link-DVI).

And with the newer HD5000 series AMD is going for triple ones, just like
Matrox did already years ago.

As another question in this area, I always see this message on startup
in my Xorg.0.log:

(II) RADEON(0): Cannot get VRAM scratch space. Allocating in main memory
instead

As it is an INFO I assume this is not critical and all things work but I
always asked myself if this may cause any performance loss?


Best regards,

Ancoron


> 
> Cheers,
> Jerome
> _______________________________________________
> xorg-driver-ati mailing list
> xorg-driver-ati at lists.x.org
> http://lists.x.org/mailman/listinfo/xorg-driver-ati
> 
> 
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iEYEARECAAYFAkse3EIACgkQHwxOsqv2bG3ZHACglAg66pLAKXJtcwKlHMrk8ee1
IasAoMCLow3tvXzNjSIuU+SciGuqHff/
=cDXA
-----END PGP SIGNATURE-----