Since it's now almost certainly too late to fix in Gutsy, I've added the hardy kernel as 'Incomplete'. I've also done a little research into the problem; it appears to be a known problem with libata and certain chipsets: http://linux-ata.org/faq.html#combined
The link above suggests several remedies to the problem: * Recommended (where BIOS permits): Change BIOS IDE mode from "legacy" or "combined" mode to "AHCI" (recommended), "RAID" or "native". * Boot with the kernel commandline parameter "combined_mode=libata" or "combined_mode=ide" to allow the specified driver to claim all IDE ports. * Disable libata (CONFIG_ATA) entirely, and enable CONFIG_BLK_DEV_IDE_SATA. * (newer choice, with less field testing) Disable CONFIG_IDE, and permit libata to run all your IDE and SATA ports. What we need now is confirmation that these workarounds - *particularly* the recommended one - work with the bug. Since Hardy is now the development version, it would be most helpful to receive notification that the bug is still present *IN HARDY*, *AFTER* the fixes are in place - although I'm sure we'd prefer to hear that this *does* fix it. ** Changed in: linux (Ubuntu) Sourcepackagename: linux-source-2.6.24 => linux Status: New => Incomplete -- hdparm - cannot set dma on IDE hard drive that works via pata https://bugs.launchpad.net/bugs/110636 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs