Public bug reported:
I made a clean Ubuntu 9.04 Beta installation on my IBM Thinkpad R50e on
the 10th of April. All hotkeys worked fine, including volume up/down,
brightness up/down. The popups provided accurate information, and
everything was set up fine.
After updating Ubuntu sometime between the 10th and the 13th of April,
the volume, brightness and power buttons stopped producing any graphical
response. The keys themselves are functional thanks to the BIOS, but
they do not produce events neither under "input-events" or "acpi_listen"
or "xev".
The kernel does seem to recognize the existence of these hotkeys, as
evidenced by the output of "lshal" (which I've attached, along with
other information), but there seems to be no way of accessing them as
keyevents.
I've attached information which I hope will be helpful in finding the
cause of this bug.
** Affects: linux-meta (Ubuntu)
Importance: Undecided
Status: New
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Thinkpad hotkeys do not work after updating from 9.04 Beta
https://bugs.launchpad.net/bugs/362969
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