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Re: Volume control keys intercepted by materm

by Gautam Iyer-3 :: Rate this Message:

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On Tue, Jul 07, 2009 at 04:18:42AM -0400, Leo Alekseyev wrote:

> on my Windows laptop the volume control keys (Function-F8 and
> Function-F9) get intercepted by mrxvt have the equivalent of typing
> characters "b" and "c".  Oddly enough, other control keys (e.g. for
> brightness) don't get caught by mrxvt.  It gets annoying sometimes,
> but I don't know how I would start troubleshooting...  Let me know if
> you've got any hints!

Run some other X program (e.g. Xterm) and press these keys. I'm willing
to bet that they'll still be intercepted.

Mrxvt interprets whatever keys are sent to it by the X server. On most
laptops (or at least on *my* laptop) the brightness keys generate ACPI
events, not keystrokes. These are handled correctly by the X server /
display driver, and pressing them results in increasing / decreasing the
brightness respectively.

The volume control keys however generate keystrokes, which are supposed
to be handled by a client application. I'm not sure what you'll do with
this on Windows, but on Linux any reasonable window manager should be
able to intercept these keystrokes. For example, I use Fvwm and the
following do the trick for me:

    key XF86AudioMute     A N Exec exec amixer -q set Master toggle
    key XF86AudioRaiseVolume A N Exec exec amixer -q set PCM 2+
    key XF86AudioLowerVolume A N Exec exec amixer -q set PCM 2-

On windows, you're on your own. (Perhaps posting to a Cygwin list might
get you someone more knowledgeable).

GI

--
Yip yip yip yip yap yap yip *BANG* --- NO TERRIER


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