[ltp] Thinkpad 600 CDROM woes

[Richard Neill]

This may be dreadfully obvious, but have you tried cleaning the lens?
I only say this because my 770 would play CDs, but stopped playing DVDs 
- it took me months to realise that it wasn't either drivers or hardware 
at fault. If you get intermittent failures as described, it may be worth 
  trying.

Richard




Martin Sanborn wrote:

> Perhaps someone can shed some light on my situation. My Thinkpad 600's CDROM
> drive appears to be on the verge of an untimely death. Whether audio or data
> CDs are inserted, most of the time the drive will spin up, sound like it is
> reading the disc, then abruptly stop, flashing its little yellow LED every
> second until the disc is removed. It will attempt this a few times, then
> ultimately fail. If by chance it does read an audio disc, playback is choppy
> and generally unlistenable. The kernel logs have messages like,
> 
> Nov  6 13:11:42 delirium kernel: hdc: packet command error: status=0x51 {
> DriveReady SeekComplete Error }
> Nov  6 13:11:42 delirium kernel: hdc: packet command error: error=0x30
> Nov  6 13:11:42 delirium kernel: ATAPI device hdc:
> Nov  6 13:11:42 delirium kernel:   Error: Medium error -- (Sense key=0x03)
> Nov  6 13:11:42 delirium kernel:   (reserved error code) -- (asc=0x57,
> ascq=0x00)
> Nov  6 13:11:42 delirium kernel:   The failed "Test Unit Ready" packet
> command was:
> Nov  6 13:11:42 delirium kernel:   "00 00 00 00 00 00 00 00 00 00 00 00 "
> Nov  6 13:11:42 delirium kernel: cdrom: open failed.
> 
> Anyone with similar experience? There were some reports with a bug in the
> kernel way back in the 2.2 series that may have caused some problems, but the
> bugs have since been fixed and I doubt this is a software problem.
> 
> I know these drives are pretty cheap - $25 on ebay - but I wanted a second
> opinon before I buy one.
> 
> I'm running kernel version 2.4.13 with the xfs patch and devfs. The machine
> has 196 MB of RAM. Curiously, it passes the CDROM self-test in the IBM BIOS.
> 
> Thanks for any information.
> 
> Marty Sanborn
> 
> --
> 
> | Martin Sanborn - Dept. of Chemical Engineering - Northwestern University |
> | m-sanborn@nwu.edu - (847)467-1653 - http://zeolites.cqe.nwu.edu/marty |
> 
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