On Sun, 27 Mar 2011 21:23:16 +0000 Allen Weiner <alweiner7@xxxxxxxxxxx> wrote: > > My 133 MB/s PATA HDD is being configured for 33 MB/s due to incorrect detection of a 40-wire cable. You can force this (See Documentation) > Q1: Is this problem most likely a faulty cable (I don't currently have a second cable to try a substitution), a BIOS bug, or a Linux bug? It's probably some weird combination of things. The board seems to have a real mix of devices and it's possible that in the case of a VIA PATA add on chip on an ATI chipset the rules are different somewhere. > Q2: What additional steps can I take to debug this problem? Adding debug to drivers/ata/pata_via:via_cable_detect to see which path it takes might be instructive. (I assume the disk is on the VIA controller). Cable clearly is ok as the BIOS detects both states properly. -- 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
