Bug 31213

Summary: [RADEON:KMS:RV370:INIT] [drm] cp init fail (any kernels 2.6.3x.x)
Product: DRI Reporter: djnass_18
Component: DRM/RadeonAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED MOVED QA Contact:
Severity: normal    
Priority: high    
Version: XOrg git   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:

Description djnass_18 2010-10-29 06:16:12 UTC 
when loading the 'radeon' driver with modeset=1 (KMS enabled) 
the following error appears in dmesg | grep drm

[drm:r100_ring_test] *ERROR* radeon: ring test failed (sracth(0x15E4)=0xCAFEDEAD)
[drm:r100_cp_init] *ERROR* radeon: cp isn't working (-22).

the result is that OpenGL renderer with be the 'software rasterizer'. and performance is obviously crippled.

glxinfo returns:

OpenGL vendor string: Mesa Project
OpenGL renderer string: Software Rasterizer
OpenGL version string: 2.1 Mesa 7.8.1

The error occurs with kernels 2.6.33.4, 2.6.35.7 and even the latest at the time 2.6.36. The pc is a toshiba satellite m40-185 laptop with ati mobility radeon X300 (rv370) gpu.

Additionally, I have tried installing the git versions of libdrm, mesa, and xf86-video-ati to this date (29/10/2010) with Gallium support (enabled in turn --enable-gallium, --enable-gallium-radeon and even both, using llvm (version 2.8) compiler. The problem persists.

The only way to get 3d accelaration is to disable KMS. then dmesg | grep drm seems to load up fine (see here: http://pastebin.com/vNfyeq7P). But then I have problems with 3d applications 'competing' to stay on top - they don't seem to be able to work well with KDE4 compositing effects. To avoid that I have to disable the compositing effects ( see here for in depth explanation and some Xorg.0.log and dmesg outputs http://www.linuxquestions.org/questions/slackware-14/3d-applications-compete-to-stay-on-top-with-the-radeon-driver-840392/ )
Comment 1 Jerome Glisse 2011-02-09 07:45:40 UTC 
Is this still and issue with current kernel ?
Comment 2 Jonathan Nieder 2011-12-09 16:25:16 UTC 
(In reply to comment #0)
> when loading the 'radeon' driver with modeset=1 (KMS enabled) 
> the following error appears in dmesg | grep drm
>
> [drm:r100_ring_test] *ERROR* radeon: ring test failed
> (sracth(0x15E4)=0xCAFEDEAD)
> [drm:r100_cp_init] *ERROR* radeon: cp isn't working (-22).

Max: ping? How do current kernels behave?

In suspense,
Jonathan
Comment 3 Martin Peres 2019-11-19 08:16:00 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/162.

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