Comment 23 for bug 646293

I have the same problem on 3 different machines running Ubuntu 10.10 x64, kernel 2.6.39.1.

The symptoms are: the cd or dvd in the drive is shown in nautilus, but attempting to open, mount, or eject it sends a dbus error message, "DBus error org.gtk.Private.RemoteVolumeMonitor.Failed: An operation is already pending." Ejecting a disk manually works, but afterward gparted won't start, and disk utility shows a blank window. I've googled trying to solve this problem for several days, and am glad to have finally found this thread now.

Each machine has 1 cd/dvd, each used to work in ubuntu 10.10, and each continues to work in alternative OSs (mac os10.6.8, windows 7x64).

On 2 systems, older installations of linux also work. The drive is fine as I write this on one of these machines after booting into ubuntu 10.10 kernel 2.6.38.3, udev 163. (I'll update this when I check the udev version on the failing system).

The working system shows cd-rom mounted on sr 7:0:0:0: , while the failing systems show the cdrom pointing to sr0 (to be updated).

If any of you find a work around (other than using an old kernel, which I'm not sure will work on the broken systems), please do post.

Thanks,
Matthew

Installing 11.04 did not help, changing to more recent 2.6.38 kernels did not help. For some reason 2.6.39.2 will not install on these machines -- some dependency is not upgradeable. I mention all of this to help with debugging.