Mailinglist Archive: opensuse (2731 mails)

[David <dcorking@xxxxxxxx>]

On Wed, 06 Aug 2003, Rohit wrote:

> Has anyone observed this before? My Samsung 348 DVD/CD-rw combo driver
> works flawlessly on Windows. Copying, CD-writing etc all works just fine.
> What pains is that accessing the drive in Linux causes regular
> read-errors. If I am playing a file/avi in mplayer, mplayer aborts. If I
> try to copy it in Linux, the file copy operation aborts. The same is done
> fantastically in Windows.

Got a new UDMA motherboard last year and started getting burn problems
with CD-RW ide-scsi emulation that I never had before (with the same
drive and same Linux on my old slow EIDE motherboard.)  No consistent
error messages, tried lots of different CD-R and CD-RW blanks

So I had to disable UDMA on the CD-RW to get it to burn
using

hdparm -d1 X34 /dev/hdc

which I put in 
/etc/init.d/boot.local

(the LSB script for local admins to edit which executes immediately
after booting.)

Worked flawlessly since then.  X34 might not be right for your drive.
Sadly I don't know where if anywhere I documented my reasoning.  AFAIR
the docs for hdparm give most of the info you need, but there may be a
more specific howto somewhere that googling might bring up.

Hope this helps.  David