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Re: CD drive difficulty



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Le 05/12/2009 04:06, Carroll Grigsby a écrit :
> I'm just finishing installing F12 XFCE and encountered a problem
> with the CD drive: When I push the eject button, the tray is first
> extended fully outward and then is immediately retracted. I'm
> reasonably certain that this is not a hardware problem, but rather
> is some sort of misconfiguration issue.

I have the same issue with one of my CD drive.

I have 2 DVD drives:

/dev/sr0:ASUS    DVD-E616A
/dev/sr1:SONY    DVD RW DRU-810A

This problem happens with the ASUS drive when I want to eject a mounted
CD/DVD

Another problem is the SONY: sometimes it is impossible to open/eject
this drive. But the problem described here (eject then immediately
reload does not happens.


When I use these drives, I get this warning in the logwatch report:

- --------------------- Kernel Begin ------------------------


 WARNING:  Kernel Errors Present
    ata1.00: failed to IDENTIFY (I/O error, err_mask=0x40) ...:  1 Time(s)
    ata1.01: failed to IDENTIFY (I/O error, err_mask=0x4) ...:  3 Time(s)

 ---------------------- Kernel End -------------------------


When I cannot open/eject the SONY drive, there are messages in
/var/log/messages:

Nov 26 23:24:40 dipankar hald: mounted /dev/sr1 on behalf of uid 3025
Nov 26 23:24:58 dipankar hald: unmounted /dev/sr1 from '/media/UBCD410'
on behalf of uid 0
Nov 26 23:25:44 dipankar kernel: end_request: I/O error, dev sr1, sector 0
Nov 26 23:25:44 dipankar kernel: Buffer I/O error on device sr1, logical
block 0
Nov 26 23:25:44 dipankar kernel: end_request: I/O error, dev sr1, sector 4
Nov 26 23:25:44 dipankar kernel: Buffer I/O error on device sr1, logical
block 1
Nov 26 23:25:44 dipankar kernel: Buffer I/O error on device sr1, logical
block 2
Nov 26 23:25:44 dipankar kernel: Buffer I/O error on device sr1, logical
block 3
Nov 26 23:25:44 dipankar kernel: Buffer I/O error on device sr1, logical
block 4
Nov 26 23:25:44 dipankar kernel: Buffer I/O error on device sr1, logical
block 5
Nov 26 23:25:44 dipankar kernel: Buffer I/O error on device sr1, logical
block 6
Nov 26 23:25:44 dipankar kernel: Buffer I/O error on device sr1, logical
block 7
Nov 26 23:25:44 dipankar kernel: end_request: I/O error, dev sr1, sector 0
Nov 26 23:25:44 dipankar kernel: Buffer I/O error on device sr1, logical
block 0
Nov 26 23:25:44 dipankar kernel: Buffer I/O error on device sr1, logical
block 1
Nov 26 23:25:44 dipankar kernel: end_request: I/O error, dev sr1, sector 0
Nov 26 23:25:44 dipankar kernel: end_request: I/O error, dev sr1, sector 0
Nov 26 23:25:44 dipankar kernel: end_request: I/O error, dev sr1, sector 4
Nov 26 23:25:44 dipankar kernel: end_request: I/O error, dev sr1, sector 0
Nov 26 23:26:06 dipankar kernel: end_request: I/O error, dev sr1, sector 0
Nov 26 23:26:06 dipankar kernel: Buffer I/O error on device sr1, logical
block 0
Nov 26 23:26:06 dipankar kernel: end_request: I/O error, dev sr1, sector 0
Nov 26 23:26:06 dipankar kernel: Buffer I/O error on device sr1, logical
block 0

Then nothing...: the drive is completely ignored whatever are my
attempts to open it, I have to reboot.


- --
François Patte
UFR de mathématiques et informatique
Université Paris Descartes
45, rue des Saints Pères
F-75270 Paris Cedex 06
Tél. +33 (0)1 4286 2145
http://www.math-info.univ-paris5.fr/~patte
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