[ltp] Re: Brightness keys broken with 2.6.28

Derrick Karpo linux-thinkpad@linux-thinkpad.org
Thu, 1 Jan 2009 13:38:23 -0700


On Thu, Jan 1, 2009 at 11:50 AM, Tino Keitel <tino.keitel@tikei.de> wrote:
> On Thu, Jan 01, 2009 at 11:29:46 -0700, Derrick Karpo wrote:
>
> [...]
>
>> No problem here with a T400 and 2.6.28.  Both the Fn-<brightness> keys
>> and xbacklight work as expected.
>
> How do you use the keys? Via ACPI directly or via input key events (so
> that you see them in xev)?
>
>> If you switch back to 2.6.27 is it working?
>
> Yes.

Although I can see the events in xev, I appear to be using ACPI
directly.  I see no events via `input-events' on my AT keyboard.  Are
you perhaps running into this bug?

  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/280646

Derrick


Here is my xev output for Fn-BrightnessUp and Fn-BrightnessDown:

KeyPress event, serial 34, synthetic NO, window 0x2000001,
    root 0x69, subw 0x0, time 7165573, (-222,184), root:(646,452),
    state 0x0, keycode 212 (keysym 0x0, NoSymbol), same_screen YES,
    XLookupString gives 0 bytes:
    XmbLookupString gives 0 bytes:
    XFilterEvent returns: False

KeyRelease event, serial 34, synthetic NO, window 0x2000001,
    root 0x69, subw 0x0, time 7165573, (-222,184), root:(646,452),
    state 0x0, keycode 212 (keysym 0x0, NoSymbol), same_screen YES,
    XLookupString gives 0 bytes:
    XFilterEvent returns: False

KeyPress event, serial 34, synthetic NO, window 0x2000001,
    root 0x69, subw 0x0, time 7168864, (-222,184), root:(646,452),
    state 0x0, keycode 101 (keysym 0x0, NoSymbol), same_screen YES,
    XLookupString gives 0 bytes:
    XmbLookupString gives 0 bytes:
    XFilterEvent returns: False

KeyRelease event, serial 34, synthetic NO, window 0x2000001,
    root 0x69, subw 0x0, time 7168864, (-222,184), root:(646,452),
    state 0x0, keycode 101 (keysym 0x0, NoSymbol), same_screen YES,
    XLookupString gives 0 bytes:
    XFilterEvent returns: False