[Bug 29579] New: 2.6.35 with RV630 AGP does not enable KMS/DRM

[bugzilla-daemon@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=29579

           Summary: 2.6.35 with RV630 AGP does not enable KMS/DRM
           Product: DRI
           Version: XOrg CVS
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: juho-mikko.pellinen@lut.fi


Created an attachment (id=37860)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=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)

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