[arch-general] DVD's won't read

[Nilesh Govindarajan]

On 03/20/2010 03:57 AM, Mauro Santos wrote:
> On 03/19/2010 09:52 PM, Felipe Tanus wrote:
>> Finally, I ask again: Does someone has at least a thought about
>> why a 40-wired cable works in the boot of the computer but not in the OS,
>> and a 80-wired cable could fix the issue?
>
> Maybe because the bios sets some conservative settings and the latest
> kernel then overrides them with more aggressive (faster) settings.
>
> Maybe you have a drive that supports ata66 (or claims to support), the
> kernel then tries to set things to work at that speed but the cable
> can't handle it.
>
> Maybe you can try to force a slower speed in the bios or try to tell the
> libata module to force a slower speed.
> Check the output of 'modinfo libata' and go from there.
>
> However I guess that if the problem is the cable you should see lots of
> errors on the output of dmesg when trying to read a cd or dvd.

How to change the settings ?

I don't think this is a speed issue because CD-R and DVD+-R work whereas 
CD-RW and DVD+-RW do not. I'll also try this :)

-- 
Nilesh Govindarajan
Site & Server Administrator
www.itech7.com