I've got a Mitsumi SR243T 24x CD-ROM drive, and each time I put in a disc, be it audio or data, the disc gets ejected after a certain (random) amount of time. It doesn't matter if something is read from the disc, or if the disc is idle. There are some situations where the volume can't get unmounted, because some file is still open; in these cases I get a pop-up message from Nautilus, and the disc stays in the drive. However, listening to audio CDs, or grabbing them using sound-juicer is nearly impossible, because after a few tracks the drive ejects the disc unexpectedly. If I kill hald-addon-storage responsible for polling the device, and mount everything manually, the problem disappears for data CDs, but then sound-juicer doesn't find any available CD-ROM devices.
I modified addon-storage.c to output detailed response buffer information at the part where the eject button press is checked (see attached patch). Then restarted hald, adding "--daemon=no --verbose=yes" to the command line. According to the output of hald, it seems that the drive responds to the "get event/status notification" command with various event/status notification responses which are unrelated to the original "Media" event type. As you can see from the hald log snippet below, the responses don't have the notification class field set as 4 (Media). (I used the SCSI MMC-3 working draft from www.t10.org as a guide to find out what the bytes in the response buffer mean.) However, they still contain 0x01 on the lower 4 bits of byte 4 of the buffer (didn't check this explicitly, but since we are inside an 'if' block which checks for this condition, I assume this is the case), and therefore are treated as an eject request. Using Ubuntu Hardy Alpha with hal version 0.5.10. --------8<------------------------------- --- data CD 19:07:24.249 [I] device.c:1836: Removing locks from ':1.63' [2295]: 19:12:05.938 [D] addon-storage.c:462: emitting condition 'EjectPressed' for /dev/scd0 [2295]: 19:12:05.938 [D] addon-storage.c:468: NEA: 0, Notification Class: 0, Supported Event Classes: 0 19:12:05.938 [D] hald_dbus.c:3072: udi=/org/freedesktop/Hal/devices/storage_model_CD_ROM_SR243T [2295]: 19:12:07.936 [I] addon-storage.c:346: Checking whether device /dev/scd0 is locked on HAL [2295]: 19:12:07.937 [I] addon-storage.c:354: ... device /dev/scd0 is not locked on HAL 19:12:24.622 [I] device.c:1836: Removing locks from ':1.64' [2295]: 19:15:11.972 [D] addon-storage.c:462: emitting condition 'EjectPressed' for /dev/scd0 [2295]: 19:15:11.972 [D] addon-storage.c:468: NEA: 0, Notification Class: 2, Supported Event Classes: 0 19:15:11.973 [D] hald_dbus.c:3072: udi=/org/freedesktop/Hal/devices/storage_model_CD_ROM_SR243T [2295]: 19:15:13.968 [I] addon-storage.c:346: Checking whether device /dev/scd0 is locked on HAL [2295]: 19:15:13.969 [I] addon-storage.c:354: ... device /dev/scd0 is not locked on HAL 19:15:32.541 [I] device.c:1836: Removing locks from ':1.65' --- audio CD [2295]: 19:52:30.980 [I] addon-storage.c:346: Checking whether device /dev/scd0 is locked on HAL [2295]: 19:52:30.981 [I] addon-storage.c:354: ... device /dev/scd0 is not locked on HAL [2295]: 19:53:37.432 [I] addon-storage.c:346: Checking whether device /dev/scd0 is locked on HAL [2295]: 19:53:37.433 [I] addon-storage.c:354: ... device /dev/scd0 is not locked on HAL 19:55:59.555 [I] device.c:1836: Removing locks from ':1.72' 19:56:05.894 [I] device.c:1836: Removing locks from ':1.73' [2295]: 19:56:10.620 [D] addon-storage.c:462: emitting condition 'EjectPressed' for /dev/scd0 [2295]: 19:56:10.620 [D] addon-storage.c:468: NEA: 0, Notification Class: 1, Supported Event Classes: 8 19:56:10.621 [D] hald_dbus.c:3072: udi=/org/freedesktop/Hal/devices/storage_model_CD_ROM_SR243T [2295]: 19:56:12.492 [I] addon-storage.c:346: Checking whether device /dev/scd0 is locked on HAL [2295]: 19:56:12.493 [I] addon-storage.c:354: ... device /dev/scd0 is not locked on HAL ** Attachment added: "addon-storage-detailed-buffer.patch" http://launchpadlibrarian.net/11338997/addon-storage-detailed-buffer.patch -- CDROM drive eject disc after randomly seconds of use https://bugs.launchpad.net/bugs/47516 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
