2009/6/5 Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>: >> Adding more information. A user on the openSUSE forum which is trying >> out openSUSE 11.2 milestone 2 (with kernel 2.6.30-rc6-git3) is having >> the same problems. His computer is using the pata_amd driver instead >> of pata_via like mine and he too gets limiting to UDMA33 during boot >> >> Link: http://forums.opensuse.org/pre-release-beta/415373-hd-speed.html > > Different problem. However that Nvidia one it would be worth trying this > so that we just rely upon the ACPI/BIOS data for Nvidia. > > diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c > index 33a74f1..c9c5fad 100644 > --- a/drivers/ata/pata_amd.c > +++ b/drivers/ata/pata_amd.c > @@ -424,7 +424,7 @@ static struct ata_port_operations amd133_port_ops = { > > static const struct ata_port_operations nv_base_port_ops = { > .inherits = &ata_bmdma_port_ops, > - .cable_detect = ata_cable_ignore, > + .cable_detect = ata_cable_80wire, > .mode_filter = nv_mode_filter, > .prereset = nv_pre_reset, > .host_stop = nv_host_stop, > Hi Alan, I've relayed your reply to the pata_amd user on the forum. As for my case with pata_via, until this is fixed, is there any way to force it to use a higher UDMA? Is there a flag that can be passed in, for example, in /sys somewhere? hdparm fails to set a higher UDMA and I looked at sdparm but don't see anything in it to increase UDMA... -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html