I use xubuntu 12.04 with 3.5.0-22 kernel
$ uname -a
Linux Acer 3.5.0-22-generic #34~precise1-Ubuntu SMP Wed Jan 9 21:45:40 UTC 2013
x86_64 x86_64 x86_64 GNU/Linux
I found that kernel polling does not work with some optical drives, even if I
do:
echo 2000 > /sys/block/sr?/events_poll_msecs
echo 2000 > /sys/module/block/parameters/events_dfl_poll_msecs
I can't eject my embedded notebook drive
(ID_SERIAL=HL-DT-STDVDRAM_GT31N_KZLAC5D2847) with eject button, but eject
/dev/sr0 is working, and eject -i 0 /dev/sr0 is working to.
And no udev events is generated while pressing eject button.
I test this with external USB drive to
(ID_SERIAL=TS8XDVDR_Transcend_613143333435363738394B4C-0:0).
But with this drive eject button is working, and udev events is generated.
Ok, but I found more. With those external USB drive eject button stops
working while disk is mounted. And while disk is mounted udev receive no
eject event from drive eject button. But if I unmount disk by hands
after pressing drive eject button, drive ejects itself (and udev receive
change event). Seems like while disk is mounted, kernel eject event is
waits in some kind of queue.
For workaround I was trying to restore udisks polling (11.04 behavior)
writing some udev rules to set ATTR{events_poll_msecs}="-1" and disable
tray locking on my devices. It's working, udisks polling is enabled, but
again while disk is mounted I can eject it with drive eject button, but
no udisks/udev events is generated, and no unmount is performed, I have
to unmount it manually.
I even cannot enable old udisks behavior that was working fine for me in
11.04.
Fix it please! Two years is passed.
** Tags added: apport-collected
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https://bugs.launchpad.net/bugs/890592
Title:
CD drive eject button does not work
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