Hi All,

I have a similar problem in Ubuntu 10.10(Marevrick). 

I meet the same situation when I plug a DVD drive to SATA 3.0 port and set SATA controlloer to IDE mode.

If I plug DVD drive to SATA 2.0 port and set SATA controlloer to IDE mode, DVD drive can be detected.

If I plug DVD drive to SATA 3.0 port and set SATA controlloer to AHCI mode, DVD drive can be detected, too.

I am failed to file a bug. Can somebody help me?

Thanks

dmesg:
[ 1.892198] ata1: SATA max UDMA/133 cmd 0x3098 ctl 0x30ac bmdma 0x3070 irq 19
[ 3.309652] ata1.01: failed to resume link (SControl 0)
[ 3.469636] ata1.00: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 3.469777] ata1.01: SATA link down (SStatus 4 SControl 0)
[ 3.469899] ata1.01: link offline, clearing class 3 to NONE
[ 3.489703] ata1.00: ATAPI: HL-DT-ST DVDRAM GH22NS40, NL02, max UDMA/100
[ 3.529740] ata1.00: configured for UDMA/100
[ 8.526759] ata1.00: qc timeout (cmd 0xa0)
[ 8.526872] ata1.00: TEST_UNIT_READY failed (err_mask=0x4)
[ 9.945970] ata1.01: failed to resume link (SControl 0)
[ 10.105952] ata1.00: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 10.106074] ata1.01: SATA link down (SStatus 4 SControl 0)
[ 10.106188] ata1.01: link offline, clearing class 3 to NONE
[ 10.165978] ata1.00: configured for UDMA/100
[ 15.163063] ata1.00: qc timeout (cmd 0xa0)
[ 15.163171] ata1.00: TEST_UNIT_READY failed (err_mask=0x4)
[ 15.163277] ata1.00: limiting SATA link speed to 1.5 Gbps
[ 15.163382] ata1.00: limiting speed to UDMA/100:PIO3
[ 16.582272] ata1.01: failed to resume link (SControl 0)
[ 16.742249] ata1.00: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
[ 16.742371] ata1.01: SATA link down (SStatus 4 SControl 0)
[ 16.742486] ata1.01: link offline, clearing class 3 to NONE
[ 16.802290] ata1.00: configured for UDMA/100
[ 21.799369] ata1.00: qc timeout (cmd 0xa0)
[ 21.799478] ata1.00: TEST_UNIT_READY failed (err_mask=0x4)
[ 21.799583] ata1.00: disabled
[ 21.799693] ata1.00: hard resetting link
[ 22.149176] ata1.01: hard resetting link
[ 23.218581] ata1.01: failed to resume link (SControl 0)
[ 23.378554] ata1.00: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
[ 23.378676] ata1.01: SATA link down (SStatus 4 SControl 0)
[ 23.378790] ata1.01: link offline, clearing class 3 to NONE
[ 23.378793] ata1: EH complete

lspci:
00:1f.2 IDE interface: Intel Corporation Cougar Point 4 port SATA IDE Controller (rev 04) (prog-if 8f [Master SecP SecO PriP PriO])
Subsystem: Intel Corporation Cougar Point 4 port SATA IDE Controller
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 19
Region 0: I/O ports at 3098 [size=8]
Region 1: I/O ports at 30ac [size=4]
Region 2: I/O ports at 3090 [size=8]
Region 3: I/O ports at 30a8 [size=4]
Region 4: I/O ports at 3070 [size=16]
Region 5: I/O ports at 3060 [size=16]
Capabilities: [70] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [b0] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: ata_piix