Comment 4 for bug 213639

I have the same bug with pata_amd module.
After upgrade my Gutsy to Hardy RC the devices changes from hdx to sdx and my DVD RW (ASUS DRW-1608P3S) became unusable. Impossible to read a CD or DVD.
In dmesg :
[ 29.104185] pata_amd 0000:00:09.0: version 0.3.10
[ 29.104274] PCI: Setting latency timer of device 0000:00:09.0 to 64
[ 29.105408] scsi0 : pata_amd
[ 29.106175] scsi1 : pata_amd
[ 29.107533] ata1: PATA max UDMA/133 cmd 0x1f0 ctl 0x3f6 bmdma 0xffa0 irq 14
[ 29.107537] ata2: PATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0xffa8 irq 15
[ 29.276189] ata1.00: ATA-7: HDS728080PLAT20, PF2OA21B, max UDMA/133
[ 29.276194] ata1.00: 160836480 sectors, multi 16: LBA48
[ 29.300095] ata1.00: configured for UDMA/133
[ 29.620040] ata2.00: ATAPI: ASUS DRW-1608P3S, 1.24, max UDMA/66
[ 29.671662] usb 1-2: new low speed USB device using ohci_hcd and address 3
[ 29.791954] ata2.00: configured for UDMA/66
[ 29.792097] scsi 0:0:0:0: Direct-Access ATA HDS728080PLAT20 PF2O PQ: 0 ANSI: 5
[ 29.798662] scsi 1:0:0:0: CD-ROM ASUS DRW-1608P3S 1.24 PQ: 0 ANSI: 5
[ 29.817518] Driver 'sd' needs updating - please use bus_type methods
[ 29.817626] sd 0:0:0:0: [sda] 160836480 512-byte hardware sectors (82348 MB)
[ 29.817644] sd 0:0:0:0: [sda] Write Protect is off
[ 29.817647] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 29.817671] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 29.817727] sd 0:0:0:0: [sda] 160836480 512-byte hardware sectors (82348 MB)
[ 29.817739] sd 0:0:0:0: [sda] Write Protect is off
[ 29.817742] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 29.817762] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 29.817767] sda:<4>Driver 'sr' needs updating - please use bus_type methods
[ 29.829683] sda1 sda2 < sda5 > sda3
[ 29.852122] sd 0:0:0:0: [sda] Attached SCSI disk
[ 29.859371] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 29.859395] sr 1:0:0:0: Attached scsi generic sg1 type 5
[ 29.884688] usb 1-2: configuration #1 chosen from 1 choice
[ 29.888383] sr0: scsi3-mmc drive: 40x/40x writer dvd-ram cd/rw xa/form2 cdda tray
[ 29.888392] Uniform CD-ROM driver Revision: 3.20
[ 29.888457] sr 1:0:0:0: Attached scsi CD-ROM sr0

And when i try to read a DVD :
Apr 23 10:14:53 lion kernel: [ 5035.278597] end_request: I/O error, dev sr0, sector 1391324
Apr 23 10:14:53 lion kernel: [ 5035.308557] sr 1:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
Apr 23 10:14:53 lion kernel: [ 5035.308567] sr 1:0:0:0: [sr0] Sense Key : Hardware Error [current]
Apr 23 10:14:53 lion kernel: [ 5035.308572] sr 1:0:0:0: [sr0] Add. Sense: Logical unit communication CRC error (Ultra-DMA
/32)
Apr 23 10:14:53 lion kernel: [ 5035.308579] end_request: I/O error, dev sr0, sector 1391320
Apr 23 10:14:53 lion kernel: [ 5035.345547] sr 1:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
Apr 23 10:14:53 lion kernel: [ 5035.345558] sr 1:0:0:0: [sr0] Sense Key : Hardware Error [current]
Apr 23 10:14:53 lion kernel: [ 5035.345563] sr 1:0:0:0: [sr0] Add. Sense: Logical unit communication CRC error (Ultra-DMA
/32)