Re: [BUG REPORT] 260.19.36 64-bit Linux driver conflicts with AMD 890FX IOMMU
Just to add a little more to this:
Currently running on ArchLinux,
Motherboard: Sabertooth 990FX (bios: 0901)
CPU: Phenom II X4 965
With both IOMMU and the 64Mb option enabled, the xorg driver fails to load, giving the same error as mentioned before. If I pass "iommu=pt" as a boot option, Xorg starts up correctly.