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