From b779109051f86b5b8af2359b2b940ac4567d77b9 Mon Sep 17 00:00:00 2001
From: Weixing Zhang <anzhang@ati.com>
Date: Sun, 2 Jul 2006 16:55:25 +0200
Subject: Bug #6939: Disable 3D acceleration on RN50 by setting invalid
 ClientDriverName. (cherry picked from
 4a0c22e32901a510c7aad070be25c31519c284e3 commit)

---
 src/radeon_dri.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/radeon_dri.c b/src/radeon_dri.c
index 7e5840c..7aef521 100644
--- a/src/radeon_dri.c
+++ b/src/radeon_dri.c
@@ -1374,6 +1374,11 @@ Bool RADEONDRIScreenInit(ScreenPtr pScreen)
     } else    
     if ( info->ChipFamily >= CHIP_FAMILY_R200 )
        pDRIInfo->clientDriverName	 = R200_DRIVER_NAME;
+    else if ((info->Chipset == PCI_CHIP_RN50_515E) || 
+             (info->Chipset == PCI_CHIP_RN50_5969)) {
+        /* RN50 doesn't support 3D, so setting clientDriverName to an invalid name "RN50" */
+        pDRIInfo->clientDriverName       = "RN50";          
+    }
     else 
        pDRIInfo->clientDriverName	 = RADEON_DRIVER_NAME;
 
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