Re: PIONEER DVD-RW DVRTD08 is disabled if there is no disc present at boot time

[Peter Klotz <peter.klotz@aon.at>]

Tejun Heo wrote:
>> * and the error log when a CD can't be read looks like this (dmesg tail)
>> [  227.213893] sr 1:0:0:0: [sr0] Result: hostbyte=DID_OK
>> driverbyte=DRIVER_SENSE,SUGGEST_OK
>> [  227.213914] sr 1:0:0:0: [sr0] Sense Key : Medium Error [current] 
>> [  227.213926] Info fld=0x2e81
>> [  227.213930] sr 1:0:0:0: [sr0] Add. Sense: L-EC uncorrectable error
>> [  227.213942] end_request: I/O error, dev sr0, sector 47616
>> [  227.213954] Buffer I/O error on device sr0, logical block 5952
>> [  234.227424] sr 1:0:0:0: [sr0] Result: hostbyte=DID_OK
>> driverbyte=DRIVER_SENSE,SUGGEST_OK
>> [  234.227446] sr 1:0:0:0: [sr0] Sense Key : Medium Error [current] 
>> [  234.227457] Info fld=0x2e81
>> [  234.227461] sr 1:0:0:0: [sr0] Add. Sense: L-EC uncorrectable error
>> [  234.227473] end_request: I/O error, dev sr0, sector 47616
>> [  234.227484] Buffer I/O error on device sr0, logical block 5952
>> [  241.163142] sr 1:0:0:0: [sr0] Result: hostbyte=DID_OK
>> driverbyte=DRIVER_SENSE,SUGGEST_OK
> ...
> 
> Those errors shouldn't have much to do with how the transport is
> configured.  These are the drive failing to read the media and these
> errors can be quite indetermininstic, so it's possible that the
> pattern really isn't a pattern but then again the drive doesn't seem
> to have much problem being peculiar.  Can you please test more times
> and verify the pattern?
> 

These errors remind me of this Ubuntu 8.10 bug:

https://bugs.launchpad.net/ubuntu/+bug/295795

This bug only shows up on discs burnt with Brasero, never on discs burnt 
with K3b.

Regards, Peter.