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Submitted by Juho-Mikko Pellinen

Assigned to Default DRI bug account

Link to original bug (#29579)

Description

Created attachment 37860
2.6.35 Xorg.0.log with radeon.modeset=0

I'm having problems with getting KMS to work with 2.6.35.
I have earlier configuration with 2.6.34 and KMS works as it should. When booting up I get framebuffer console and X starts without errors.

Steps to reproduce:

1. copy working config from 2.6.34 to 2.6.35
   
2. make oldconfig and double check the differing options, none related to drm/radeon
   
3. compile kernel, boot it with different configurations
   
4. drm does not initialize, framebuffer console does not came up, X can't open dri
   

6. If I boot with radeon.modeset=0 drm initializes.

I have tried number of kernel configs without any success. Prior to this I consulted #radeon, but it couldn't find any problems with my configuration. Normally I compile things as modules and it works quite well.
AGP-drivers are compiled as modules/in kernel and load before radeon/drm.
I have tried 2.6.35 vanilla, -rc2, -rc4, -rc6, -rc6, -gentoo-r1 . They all fail the same way.

Any ideas how to get KMS working again?

My hardware:
RV630 AGP (HD2600 Pro AGP)
nForce3 chipset
CPU Athlon64 3xxx+

lscpi:
00:00.0 Host bridge: nVidia Corporation nForce3 250Gb Host Bridge (rev a1)
00:01.0 ISA bridge: nVidia Corporation nForce3 250Gb LPC Bridge (rev a2)
00:01.1 SMBus: nVidia Corporation nForce 250Gb PCI System Management (rev a1)
00:02.0 USB Controller: nVidia Corporation CK8S USB Controller (rev a1)
00:02.1 USB Controller: nVidia Corporation CK8S USB Controller (rev a1)
00:02.2 USB Controller: nVidia Corporation nForce3 EHCI USB 2.0 Controller (rev a2)
00:05.0 Bridge: nVidia Corporation CK8S Ethernet Controller (rev a2)
00:06.0 Multimedia audio controller: nVidia Corporation nForce3 250Gb AC'97 Audio Controller (rev a1)
00:08.0 IDE interface: nVidia Corporation CK8S Parallel ATA Controller (v2.5) (rev a2)
00:0a.0 IDE interface: nVidia Corporation nForce3 Serial ATA Controller (rev a2)
00:0b.0 PCI bridge: nVidia Corporation nForce3 250Gb AGP Host to PCI Bridge (rev a2)
00:0e.0 PCI bridge: nVidia Corporation nForce3 250Gb PCI-to-PCI Bridge (rev a2)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
01:00.0 VGA compatible controller: ATI Technologies Inc RV630 PRO AGP [Radeon HD 2600 PRO AGP]
02:06.0 Ethernet controller: VIA Technologies, Inc. VT6105/VT6106S [Rhine-III] (rev 86)
02:07.0 Multimedia audio controller: Creative Labs SB Audigy (rev 03)
02:07.1 Input device controller: Creative Labs SB Audigy Game Port (rev 03)
02:07.2 FireWire (IEEE 1394): Creative Labs SB Audigy FireWire Port
02:08.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10)

**Attachment 37860**, "2.6.35 Xorg.0.log with radeon.modeset=0":
Xorg.0.log