New CD/DVD drive - 80-wire cable detection failure

Nick Warne
2007-10-18T17:32:53Z

Hi all,

Please CC, not subscribed.

kernel 2.6.23

My DVD/CDrom stopped reading DVD's, so I purchased a new one today.

Old:
Oct 10 21:01:01 linuxamd kernel: ide0: BM-DMA at 0xd000-0xd007, BIOS
settings: hda:DMA, hdb:DMA
Oct 10 21:01:01 linuxamd kernel: ide1: BM-DMA at 0xd008-0xd00f, BIOS
settings: hdc:DMA, hdd:DMA

Oct 10 21:01:01 linuxamd kernel: hdd: ATAPI 48X DVD-ROM DVD-R CD-R/RW drive,
2048kB Cache, UDMA(66)
Oct 10 21:01:01 linuxamd kernel: Uniform CD-ROM driver Revision: 3.20

New:
Oct 18 17:32:20 linuxamd kernel: ide0: BM-DMA at 0xd000-0xd007, BIOS
settings: hda:DMA, hdb:DMA
Oct 18 17:32:20 linuxamd kernel: ide1: BM-DMA at 0xd008-0xd00f, BIOS
settings: hdc:DMA, hdd:DMA

Oct 18 17:32:20 linuxamd kernel: hdd: ATAPI 48X DVD-ROM DVD-R-RAM CD-R/RW
drive, 2048kB Cache, UDMA(33)
Oct 18 17:32:20 linuxamd kernel: Uniform CD-ROM driver Revision: 3.20

For some reason the new drive produces:

hdd: TSSTcorp CDDVDW SH-S202J, ATAPI CD/DVD-ROM drive
hdd: drive side 80-wire cable detection failed, limiting max speed to UDMA33

I boot with hdd=ide-cd

How to debug this to find out what is going on?

Thanks,