SOLVED: nForce4 + PCIE Radeons - anybody?

[Vladimir Kushnir]

Replying to myself.

On Tue, 14 Jun 2005, Vladimir Kushnir wrote:

> Hi all,
> Has anybody had any luck with this combination? So far no matter what I do 
> stock X (xorg-server) just hangs my box, and xorg-server-snapshot displays 
> absolutely distorted picture (wrong timings?) with xterm pulled over entire 
> screen and so forth :-(
> Box: -CURRENT (the same was with 5.4 release), Athlon64 (naturally :-), Asus 
> A8N SLI (not Deluxe), Sapphire Radeon X600
>

It appears this is a (bug? feature?) of Xorg: Radeons X600 Series (ID 
0x5B62) aren't included in correct CHIP_FAMILY in driver. Workaround: add
ChipID 0x5b60
to "Device" section of xorg.conf (passing for X300). More permanent 
solution: apply this one-liner:

*** programs/Xserver/hw/xfree86/drivers/ati/radeon_driver.c.orig	Thu Jun 23 00:56:51 2005
--- programs/Xserver/hw/xfree86/drivers/ati/radeon_driver.c	Thu Jun 23 00:57:08 2005
***************
*** 2496,2501 ****
--- 2496,2502 ----
       case PCI_CHIP_RV370_5460:
       case PCI_CHIP_RV370_5464:
           info->IsMobility = TRUE;
+     case PCI_CHIP_RV370_5B62:
       case PCI_CHIP_RV370_5B60:
       case PCI_CHIP_RV370_5B64:
       case PCI_CHIP_RV370_5B65:

Regards,
Vladimir