Hello. Sorry I haven't been able to follow on this before. Thanks for
looking at this, Martin.

Right now, my optical drive is not working. Blank CDs and DVDs are not
recognized, I've tried using Gnomebaker but it didn't "see" the disks
either. Also, I've tried inserting data DVDs and an audio CD, and they
were not mounted either. The green LED lights up for a bit, but then I
can hear the drive stops spinning and the disks are not mounted.

Of course I've wondered if it's a hardware failure, so I've rebooted
into Windows XP (dual boot machine). When running Windows XP, the drive
works correctly, I can read data DVDs, audio CDs and burn DVDs with
InfraRecorder. I made the tests in Windows with the same disks I was
trying to mount under Ubuntu, so I know it's not a problem with the
disks themselves.

Until a few weeks ago the drive was working correctly with Karmic, both
for reading and burning.

In my original bug report I said I could mount data DVDs. Now I think I
was mistaken, I had a memory of mounting DVDs but actually I last did it
with Karmic. I'm 90% sure I haven't been able to mount data DVDs since
installing Lucid. I'm 100% sure blank CDs and DVDs haven't ever been
recognized by this machine since installing Lucid. I'm really sorry for
the confusion.

Anyway, here's the output to the commands you asked.

amatri...@amatriain-desktop:~$ ps aux|grep udisks.*poll
root      2094  0.0  0.0   5176   968 ?        S    19:38   0:00 udisks-daemon: 
polling /dev/sdg /dev/sr0 /dev/sr1 /dev/sdf /dev/sdh
1000      2749  0.0  0.0   3328   884 pts/0    S+   19:52   0:00 grep 
--color=auto udisks.*poll


amatri...@amatriain-desktop:~$ sudo /lib/udev/cdrom_id --debug /dev/sr0
[sudo] password for amatriain: 
main: probing: '/dev/sr0'
cd_media_compat: CDROM_DRIVE_STATUS != CDS_DISC_OK
info_scsi_cmd_err: INQUIRY failed
ID_CDROM=1
ID_CDROM_CD_R=1
ID_CDROM_CD_RW=1
ID_CDROM_DVD=1
ID_CDROM_DVD_R=1
ID_CDROM_DVD_RAM=1
ID_CDROM_MRW=1
ID_CDROM_MRW_W=1


I also tried inserting a blank DVD and running udevadm, as you suggested to 
Tastyracer. This is the output:

amatri...@amatriain-desktop:~$ sudo udevadm trigger --verbose 
--sysname-match=sr0
/sys/devices/pci0000:00/0000:00:0f.1/host3/target3:0:0/3:0:0:0/block/sr0

After running udevadm the blank DVD still did not appear in nautilus or
the Desktop, and Brasero wasn't aware a blank DVD had been inserted.


Anything else I can do to give you clues to what's happening?

-- 
Blank DVD not recognized when inserted
https://bugs.launchpad.net/bugs/581925
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