On Thu, 13 Mar 2003, Ian Molton wrote: >> > 7200" aka "Radeon 64 DDR", is the type and speed of the memory, >> > and that the TCL unit is somehow disabled via software. >> 7200 is SDR. > >You sure about that? > >My Radeon DDR VIVO identified itself (under windows) as a 7200...
The original Radeon R100 chip was released in various products with different memory configurations. I believe all 4 of the following were shipped products: Radeon 32 SDR Radeon 32 DDR Radeon 64 SDR Radeon 64 DDR Also VIVO and AiW variants of the above. Every single board I've personally encountered all used the same Radeon chip, which is PCI ID: 1002:5144 aka. "Radeon R100 QD". Some of these board variants were later discontinued, while others were rebranded as "Radeon 7200". The Radeon 7200 is merely a new cosmetic name for the existing boards, however the chips are the same. Depending on how new or old your Windows (or XFree86) drivers are, any of the above cards will be detected as either "Radeon QD" or "Radeon 7200". They are all one and the same however, just with different memory configurations. The Radeon QD chip supports TCL in hardware, and it works in XFree86 using the Radeon TCL code on all of them (since they're all the same chip). There was also another card which was called "ATI Radeon LE" which was made by 3rd party for the Asian market (according to an FAQ which may or may not still be on ATI's website). This card was a slower clocked card, which was intended as a lower priced "Light Edition" for that particular market and it is claimed to not have the hardware TCL unit. However, the card identifies itself also as a "Radeon QD" which we of course know does have the hardware TCL unit. I have never actually used or seen one of these in person, but I do know people who have had them, and have used the TCL features on the hardware in Windows (aparently hacking some registry settings), although I don't know anyone whom has used TCL on them in Linux. I presume that the card's BIOS disables the TCL unit (or perhaps just doesn't enable it) at POST, and so the Windows drivers aren't able to use it - or perhaps it is entirely a driver/registry thing. Not entirely sure, as I've never personally touched one. I do know however that all boards containing the "Radeon QD" chip do in fact have a useable TCL unit on them. Hope this helps to clarify the R100 line a bit. -- Mike A. Harris ftp://people.redhat.com/mharris OS Systems Engineer - XFree86 maintainer - Red Hat ------------------------------------------------------- This SF.net email is sponsored by:Crypto Challenge is now open! Get cracking and register here for some mind boggling fun and the chance of winning an Apple iPod: http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0031en _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
