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On 2011-08-09 07:32, meino.cramer@×××.de wrote: |
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> Why does it look for an AGP-bridge??? |
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Not that it helps but, I also have an AMD system (AM3+, FX990/SB950) and |
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I get the "No AGP bridge found" message too... |
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> The dmesg says I should switch on IOMMU, which I did. But that does |
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> not impress the kernel that much since it still recommends to switch |
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> on IOMMU. |
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> |
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> What did I wrong here ? |
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I can make the IOMMU message disappear in my system with a "bios" setting... |
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Two things that I can think of: |
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1. Check your bios to make sure it does enable the IOMMU (i.e. was the |
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setting saved?). |
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2. Update your bios to see if it helps (but make sure you follow any |
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instructions from the m/b manufacturer). |
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> I want to fix issues, which may be reported by dmesg, so: |
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> Where can I find explanations to the dmesg output? |
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Don't know if there is such a place to "decode" the dmesg output but if |
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you wish to know more about these particular messages (well the |
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"terminology" and the technical explanation): |
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https://secure.wikimedia.org/wikipedia/en/wiki/Iommu |
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https://secure.wikimedia.org/wikipedia/en/wiki/Aperture_%28computer_memory%29 |
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Some more digging (but I'm not sure it would help you)... |
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http://bogdan.org.ua/2009/09/30/iommu-this-costs-you-64-mb-of-ram.html |
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Best regards / MfG |
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Peter K |
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