brightness keys misfunction by looping on Thinkpads

[Hubert Figuiere]

Binary package hint: hotkey-setup

brightness keys misfunction.

In Dapper, I could have several level of brightness (Fn-Home and Fn-End) by pressing one or the other. Now I only have Low and High. When I press "brighter" it goes up to the top. If I press "darker" it goes down to the bottom.

[Hubert Figuiere (hub)]

I forgot. Laptop is Thinkpad Z60t and

versions are:
linux-image-2.6.17-10-386 2.6.17-10.26
hotkey-setup 0.1-17ubuntu3

[Simon Law (sfllaw)]

Confirmed and reproducible. This is a regression from Dapper.

Running xev tells me:
1) When brightness is at maximum, hitting Fn-Home returns keycode 212 only once
2) When brightness is at minimum, hitting Fn-Home causes keycode 212 to be hit multiple times until the brightness is at maximum.

I suspect that thinkpad-keys is noticing the screen brightness going up and interpreting that as a key press.

[Matthew Garrett (mjg59)]

hal has an entry that fixes this behaviour for Thinkpads, but I don't think the table is sufficiently populated.