Finally found a fix for this while setting up a fresh KDE4 install on
new laptop (Dell XPS M1330), although I'm not sure *why* it fixes the
situation with KDE3 playing audio cd's and KDE4 not.
The current ubuntu kernel package as of this date (2.6.24-18-generic)
seems to ship with poor support for CD/DVD drives as follows... (SCSI
related ??)
*-cdrom
description: DVD writer
product: DVD+-RW UJ-857G
vendor: MATSHITA
physical id: 0.0.0
bus info: [EMAIL PROTECTED]:0.0.0
logical name: /dev/cdrom
logical name: /dev/dvd
logical name: /dev/scd0
logical name: /dev/sr0
version: Z111
capabilities: removable audio cd-r cd-rw dvd dvd-r
configuration: ansiversion=5 status=ready
*-medium
physical id: 0
logical name: /dev/cdrom
... meaning that the drive doesn't work out of the box for things like
audio cd (non existent) and dvd playback (very choppy), although install
from a CD ISO was ok ...
The solution was to install "sdparm" package (no configuration needed)
which then enabled playback. Again, why this was working ok in KDE3 but
not in KDE4 is a mystery given that this solution seems to be in the
underlying OS. Maybe KDE3 has some kind of internal compensation hack
for allowing playback ? who knows..
The only thing that isn't happening is the drive does not appear as a
device in Dolphin, but then then media:/ ioslave isn't working either,
whcih may explain that - looks like another unrelated issue.
HTH anyone else having a similar issue..
--
CD audio disks not detected in KDE4, works perfectly in KDE3
https://bugs.launchpad.net/bugs/230985
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