On Fri, 26 Mar 2010, Lars Bjørndal wrote:
The volume buttons up, down and mute, doesn't work from within the console. How could that be fixed? Please note that I use Fedora 12, and I don't use X.
It's a bit different thing. The ACPI events are translated as key-press events to the /dev/input/event* interface. So you need an application (daemon) watching for these key-press events and modifying the volume using the ALSA mixer interface. The GUI programs do this.
Here is a short program in python reading input events and translating them to amixer calls:
=========== cut here =================== #!/usr/bin/python import struct import os
# use 'evtest' program to determine right /dev/input device and code acpievents = "/dev/input/event1" fmt = 'iihhi' fd = open(acpievents, "rb") event = fd.read(16) while event: (time1, time2, type, code, value) = struct.unpack(fmt, event) if type == 1: if code == 115: # keypress VOLUMEUP os.system("amixer -q -c 0 set PCM 10%+") elif code == 114: # keypress VOLUMEDOWN os.system("amixer -q -c 0 set PCM 10%-") event = fd.read(16) fd.close() ================ cut here =============
Jaroslav
----- Jaroslav Kysela perex@perex.cz Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc.