| Summary: | Radeon KMS fails on Xpress 200M | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Product: | DRI | Reporter: | Maarten Fonville <maarten.fonville> | ||||||||
| Component: | DRM/Radeon | Assignee: | Default DRI bug account <dri-devel> | ||||||||
| Status: | RESOLVED FIXED | QA Contact: | |||||||||
| Severity: | normal | ||||||||||
| Priority: | medium | CC: | maarten.fonville | ||||||||
| Version: | unspecified | ||||||||||
| Hardware: | Other | ||||||||||
| OS: | All | ||||||||||
| URL: | https://bugs.launchpad.net/bugs/557611 | ||||||||||
| Whiteboard: | |||||||||||
| i915 platform: | i915 features: | ||||||||||
| Attachments: |
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Created attachment 34296 [details]
Normal failure
Created attachment 34297 [details]
Failure with forcing agpmode=-1
Created attachment 34298 [details] [review] fix RS4xx+ IGP chips use an internal gart, however, some of them have the agp cap bits set in their pci configs. Make sure to clear the AGP flag as AGP will not work with them. I will try this fix immediately and *wow* you are fast :) and (hopefully) a hero ;) I can confirm the patch of Alex does work. So if this patch can gets commited soon into the mainline code it is 'fixed' corrected patch sent to Dave. |
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On an Ubuntu Lucid installation (at the moment of writing still beta) KMS should be enabled on the Radeon Xpress 200M. But intialization of KMS does fail with the lines in attachment kms_fail.txt Apparently the driver doesn't like the card's memory, which I believe is an IGP card without memory itself. Next thing I tried was passing 'radeon agpmode=-1' to the module, to force it into PCI mode. (even though the card does say in lshw: description: VGA compatible controller product: RC410 [Radeon Xpress 200M] vendor: ATI Technologies Inc physical id: 5 bus info: pci@0000:01:05.0 version: 00 width: 32 bits clock: 66MHz capabilities: agp agp-3.0 pm msi cap_list configuration: latency=64 mingnt=8 resources: memory:c0000000-cfffffff(prefetchable) ioport:9800(size=256) memory:fe1f0000-fe1fffff memory:fe1c0000fe1dffff(prefetchable) and so I think is an AGP card and not a PCI(E) card) anyhow, this does seem to improve the situation, because now can KMS be loaded. But a new error appears: it says it fails the r100_ring_test with 0xCAFEDEAD. I don't know why it fails, I found multiple people with this problem on the internet, but nobody with a fix. The log of this one I will attach as kms_forceagp-1_fail.txt Notes: Tested: kernel 2.6.32(from lucid with DRM code), 2.6.33 and 2.6.34-rc1 Tested: DRM 2.4.18 (from lucid), 2.4.19+git20100318 (xorg-edgers repository) I load radeon in /etc/modules to force the loading of the driver in time to assure that the firmware does load in time (recommended by developers) Already thanks for your time, if you need more information/testing I am willing to of course.