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Am Dienstag 09 August 2011, 07:32:34 schrieb meino.cramer@×××.de: |
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> Hi, |
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> |
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> my PC consists -- beside other things -- of a AMD Phenom II X6 1090T, |
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> a ASUS Crossfire Formula IV and a NVidia GeForce GT 430 by MSI (PCIe). |
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> Furthermore I am using the vanilla Linux kernel 3.0.1. . |
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> |
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> I browsed through the output of dmesg and found these lines: |
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> |
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> Checking aperture... |
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> No AGP bridge found |
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> Node 0: aperture @ c4000000 size 32 MB |
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> Aperture pointing to e820 RAM. Ignoring. |
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> Your BIOS doesn't leave a aperture memory hole |
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> Please enable the IOMMU option in the BIOS setup |
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> This costs you 64 MB of RAM |
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> Mapping aperture over 65536 KB of RAM @ c4000000 |
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> |
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> The kernel is not configured with any AGP-related (as far as I now) |
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> feature/config. |
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> |
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> Why does it look for an AGP-bridge??? |
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> |
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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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> |
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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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> |
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> For your information I attached the compressed dmesg output |
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> to this mail. |
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> |
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> Thank you very much for your help in advance! |
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> Best regards |
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> mcc |
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|
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see also this: |
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|
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http://marc.info/?l=linux-kernel&m=107764033904042&w=2 |
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|
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-- |
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#163933 |
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