I've got the same problem with AGPGART on my PT880Ultra chipset Asus P4V800D-X mainboard. It needs a small fix in via-agp.c
It's fixed in 2.6.17 kernel: commit 7dd1d9b85cfb63eebf48fa13d3c5d25a3deb3a25 Author: Magnus Kessler <[EMAIL PROTECTED]> Date: Mon May 22 10:53:10 2006 +0100 [AGPGART] VIA PT880 Ultra support. This patch enables agpgart on a Via "PT880 Ultra" based motherboard (Asus P4V800D-X). The PCI ID of the PT880 Ultra is 0x0308 instead of 0x0258 of the PT880. The patched via-agp passes testgart. Signed-off-by: Magnus Kessler <[EMAIL PROTECTED]> Signed-off-by: Dave Jones <[EMAIL PROTECTED]> Could you include this fix in Dapper Drake 2.6.15 kernel? -- no support for VIA PT880ULTRA on amd64/xeon https://launchpad.net/bugs/32968 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs