Udev? Or my DVD gone bad?

enorbet · 12-20-2013, 10:22 AM

Recently after upgrading my systems my SATA Plextor PX-716SA has begun to act oddly. The first I noticed was when I launched the upgraded K3B and it couldn't find a burner. Then I discovered the drawer was locked and of course it would no longer read disks, even ones it created.

At first I wondered if somehow moving my residence had "shaken it up" as I have it in a powered (and cooled) external SATA box along with an SATA hard drive. The hdd works as always. I removed the Plextor and made sure all connectors were clean and tight. No change. I removed it altogether and placed it in another older PC - WORKS!

Then I put it back in the powered external box and reconnected and it sometimes works and sometimes doesn't, mostly not.

This is dmesg |tail

Code:

 dmesg |tail
[  579.586562] ata10: SError: { CommWake DevExch }
[  579.586570] ata10: limiting SATA link speed to 1.5 Gbps
[  579.586573] ata10: hard resetting link
[  581.789086] ata10: SATA link down (SStatus 1 SControl 310)
[  581.789105] ata10: EH complete
[  581.798957] ata10: exception Emask 0x10 SAct 0x0 SErr 0x4040000 action 0xe frozen
[  581.798962] ata10: irq_stat 0x00000040, connection status changed
[  581.798965] ata10: SError: { CommWake DevExch }
[  581.798973] ata10: limiting SATA link speed to 1.5 Gbps
[  581.798976] ata10: hard resetting link

Is it likely bad? Have I missed something silly? Or is this Udev nonsense?

hitest · 12-20-2013, 10:48 AM

Quote:

Originally Posted by enorbet

I removed it altogether and placed it in another older PC - WORKS!

That is indeed odd. It is hard to say what is going on. If it works properly on your older box perhaps the connection on the box that is failing is intermittent. I have had DVD drives fail. Good luck, man!

allend · 12-20-2013, 10:52 AM

Have you checked the jumper settings?

number22 · 12-20-2013, 02:13 PM

Quote:

Originally Posted by allend

Have you checked the jumper settings?

SATA drive usually doesn't have extra jumpers like PATA does.
Problems are likely cables, connectors, then power supply, lack current on 5v or 12v.
I always use shielded sata cables.

metaschima · 12-20-2013, 04:12 PM

I would suspect the enclosure. Try switching the HDD and DVD drives in the enclosure if possible.

enorbet · 12-20-2013, 06:54 PM

Quote:

Originally Posted by metaschima

I would suspect the enclosure. Try switching the HDD and DVD drives in the enclosure if possible.

Yes I had tried this as an obvious A/B comparison since the hdd worked. It worked on the other connector/cable set too. DVD, as I reported... sometimes. I've ordered another unit since this one is past warranty but I hate throwing it out without knowing what has gone wrong. It just doesn't have many hours on it despite it's age. I put the hdd and the Plextor in the external enclosure as a repair tool where (with a PCI Sata card) I can boot either hdd or DVD, do file system recovery, backups, etc. and frankly it turned out to be rare that I needed it.

Anyone know what the hard link reset is?