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#1 2011-10-10 18:03:34

caligo
Member
From: Stockholm
Registered: 2010-01-10
Posts: 79

[SOLVED] Lite-On DVD drive not detected by system

I recently built a new system, but I cannot get the system to detect the DVD drive. I am able to boot from an Ubuntu isntall disk, so I know the drive works on some level -- it's just not detected by the OS. The drive is a Lite-On DS-8A5S SATA drive, and I'm running Gnome 3.2.

It seems to me like the drive isn't even recognized by the kernel, as lsmod returns nothing even vaguely related to dvd or cdrom drives. After manually loading the cdrom kernel module, lsmod | grep cd returns

cdrom                  36329  0 
xhci_hcd               70783  0 
ehci_hcd               39543  0 
usbcore               142576  8 btusb,usb_storage,ath3k,uas,usbhid,xhci_hcd,ehci_hcd

However, cat /proc/sys/dev/cdrom/info just returns this

CD-ROM information, Id: cdrom.c 3.20 2003/12/17

drive name:	
drive speed:	
drive # of slots:
Can close tray:	
Can open tray:	
Can lock tray:	
Can change speed:
Can select disk:
Can read multisession:
Can read MCN:	
Reports media changed:
Can play audio:	
Can write CD-R:	
Can write CD-RW:
Can read DVD:	
Can write DVD-R:
Can write DVD-RAM:
Can read MRW:	
Can write MRW:	
Can write RAM:

And dmesg | grep cd gives this (i.e. nothing about any dvd drive

[    0.000000] found SMP MP-table at [ffff8800000fcd90] fcd90
[    0.619359] pci_root PNP0A08:00: address space collision: host bridge window [mem 0x000c8000-0x000dffff] conflicts with Video ROM [mem 0x000c0000-0x000cd7ff]
[    1.246670] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.246696] ehci_hcd 0000:00:1a.0: PCI INT A -> GSI 23 (level, low) -> IRQ 23
[    1.246713] ehci_hcd 0000:00:1a.0: setting latency timer to 64
[    1.246716] ehci_hcd 0000:00:1a.0: EHCI Host Controller
[    1.246739] ehci_hcd 0000:00:1a.0: new USB bus registered, assigned bus number 1
[    1.246806] ehci_hcd 0000:00:1a.0: debug port 2
[    1.250431] xhci_hcd 0000:04:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[    1.250453] xhci_hcd 0000:04:00.0: setting latency timer to 64
[    1.250456] xhci_hcd 0000:04:00.0: xHCI Host Controller
[    1.250464] xhci_hcd 0000:04:00.0: new USB bus registered, assigned bus number 2
[    1.250655] xhci_hcd 0000:04:00.0: irq 17, io mem 0xfe500000
[    1.250729] xhci_hcd 0000:04:00.0: irq 46 for MSI/MSI-X
[    1.250732] xhci_hcd 0000:04:00.0: irq 47 for MSI/MSI-X
[    1.250733] xhci_hcd 0000:04:00.0: irq 48 for MSI/MSI-X
[    1.250735] xhci_hcd 0000:04:00.0: irq 49 for MSI/MSI-X
[    1.250737] xhci_hcd 0000:04:00.0: irq 50 for MSI/MSI-X
[    1.250762] ehci_hcd 0000:00:1a.0: cache line size of 64 is not supported
[    1.250773] ehci_hcd 0000:00:1a.0: irq 23, io mem 0xfe706000
[    1.252203] xhci_hcd 0000:04:00.0: xHCI Host Controller
[    1.252208] xhci_hcd 0000:04:00.0: new USB bus registered, assigned bus number 3
[    1.254912] xhci_hcd 0000:06:00.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
[    1.254932] xhci_hcd 0000:06:00.0: setting latency timer to 64
[    1.254935] xhci_hcd 0000:06:00.0: xHCI Host Controller
[    1.254941] xhci_hcd 0000:06:00.0: new USB bus registered, assigned bus number 4
[    1.255108] xhci_hcd 0000:06:00.0: irq 19, io mem 0xfe400000
[    1.255163] xhci_hcd 0000:06:00.0: irq 51 for MSI/MSI-X
[    1.255165] xhci_hcd 0000:06:00.0: irq 52 for MSI/MSI-X
[    1.255167] xhci_hcd 0000:06:00.0: irq 53 for MSI/MSI-X
[    1.255169] xhci_hcd 0000:06:00.0: irq 54 for MSI/MSI-X
[    1.255170] xhci_hcd 0000:06:00.0: irq 55 for MSI/MSI-X
[    1.255752] xhci_hcd 0000:06:00.0: xHCI Host Controller
[    1.255757] xhci_hcd 0000:06:00.0: new USB bus registered, assigned bus number 5
[    1.264242] ehci_hcd 0000:00:1a.0: USB 2.0 started, EHCI 1.00
[    1.264410] ehci_hcd 0000:00:1d.0: PCI INT A -> GSI 23 (level, low) -> IRQ 23
[    1.264460] ehci_hcd 0000:00:1d.0: setting latency timer to 64
[    1.264462] ehci_hcd 0000:00:1d.0: EHCI Host Controller
[    1.264467] ehci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 6
[    1.264486] ehci_hcd 0000:00:1d.0: debug port 2
[    1.268379] ehci_hcd 0000:00:1d.0: cache line size of 64 is not supported
[    1.268383] ehci_hcd 0000:00:1d.0: irq 23, io mem 0xfe705000
[    1.280907] ehci_hcd 0000:00:1d.0: USB 2.0 started, EHCI 1.00
[    1.570828] usb 1-1: new high speed USB device number 2 using ehci_hcd
[    1.854081] usb 6-1: new high speed USB device number 2 using ehci_hcd
[    2.044126] usb 1-1.5: new full speed USB device number 3 using ehci_hcd
[    2.244083] usb 6-1.6: new high speed USB device number 3 using ehci_hcd
[    2.607360] usb 6-1.6.1: new high speed USB device number 4 using ehci_hcd
[    2.807307] usb 6-1.6.2: new full speed USB device number 5 using ehci_hcd
[    2.987260] usb 6-1.6.3: new full speed USB device number 6 using ehci_hcd
[   19.869232] usb 1-1.5: new full speed USB device number 4 using ehci_hcd
[17839.229368] usb 1-1.2: new high speed USB device number 5 using ehci_hcd
[18374.635317] usb 1-1.2: new high speed USB device number 6 using ehci_hcd
[18418.909781] usb 1-1.1: new high speed USB device number 7 using ehci_hcd

I'm kind of at a loss here -- could it be a hardware problem, is it a kernel bug or have I just messed up my configs somehow?

EDIT: The problem was due to the SATA 3 gbit DVD drive being connected to a SATA 6 gbit port on the motherboard. Having connected the drive to a 3 mbit port everything works as it should.

Last edited by caligo (2011-10-10 23:08:37)

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#2 2011-10-10 20:51:20

lagagnon
Member
From: an Island in the Pacific...
Registered: 2009-12-10
Posts: 1,087
Website

Re: [SOLVED] Lite-On DVD drive not detected by system

Try "sudo wodim -scanbus". Does it find anything?

Philosophy is looking for a black cat in a dark room. Metaphysics is looking for a black cat in a dark room that isn't there. Religion is looking for a black cat in a dark room that isn't there and shouting "I found it!". Science is looking for a black cat in a dark room with a flashlight.

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#3 2011-10-10 22:17:14

caligo
Member
From: Stockholm
Registered: 2010-01-10
Posts: 79

Re: [SOLVED] Lite-On DVD drive not detected by system

$sudo wodim scanbus
Password: 
wodim: No write mode specified.
wodim: Assuming -tao mode.
wodim: Future versions of wodim may have different drive dependent defaults.
Device was not specified. Trying to find an appropriate drive...
wodim: Cannot do inquiry for CD/DVD-Recorder.
Errno: 5 (Input/output error), test unit ready scsi sendcmd: fatal error
CDB:  00 E0 00 00 00 00
cmd finished after 0.000s timeout 40s

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#4 2011-10-10 22:49:08

caligo
Member
From: Stockholm
Registered: 2010-01-10
Posts: 79

Re: [SOLVED] Lite-On DVD drive not detected by system

Hm, forgot that dmesg is case sensitive... Writing DVD in caps instead resulted in this:

$dmesg | grep DVD
[    1.610969] ata2.00: ATAPI: Slimtype DVD A  DS8A5S, WP56, max UDMA/100

I also looked through the dmesg output more carefully, and found these

[    6.629435] ata2.00: TEST_UNIT_READY failed (err_mask=0x4)
[   11.814737] ata2.00: TEST_UNIT_READY failed (err_mask=0x4)
[   16.999954] ata2.00: TEST_UNIT_READY failed (err_mask=0x4)

A quick google search indicates that this whole thing is a known problem when connecting a SATA 3 gbit DVD-drive to a SATA 6 gbit port, which is probably exactly what I've done. I'll just have to switch some cables around.

Thanks for the help lagagnon. Marking the topic as solved.

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