OK, here's what I've done to workaround the problem on my Thinkpad T30
until it's correctly fixed:
$ sudoedit /usr/share/hal/fdi/policy/10osvendor/10-laptop-panel-mgmt-
policy.fdi
I then added this stanza near the bottom:
<device>
<match key="info.category" string="laptop_panel">
<match
key="/org/freedesktop/Hal/devices/computer:smbios.system.manufacturer"
string="IBM">
<match
key="/org/freedesktop/Hal/devices/computer:smbios.system.product"
contains="2366">
<merge key="laptop_panel.brightness_in_hardware"
type="bool">true</merge>
</match>
</match>
</match>
</device>
Note that my smbios.system.project was optained from my product number from
lshal (236697U). Then I did
$ sudo invokerc.d dbus restart
gnome-power-manager crashed, so I restarted it, and now the brightness
buttons work and the brightness policy from g-p-m works, too.
The only problem that remains is that the brightness popup (the box with
the sun icon and meter) always stays zeroed regardless of how high I
turn up the brightness.
--
[Feisty] Thinkpad (all models) LCD brightness control cycles between lowest
settings only
https://launchpad.net/bugs/81407
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