Same problem for me, master volume does nothing!
It doesn't raise or lower volume and neither mute or unmute.
Only the PCM volume seems to work.
Fedora 8 and Arch Linux also affected by the same problem!
My hardware is an HP Pavilion dv5000(dv5245ea)
here comes some info:
[EMAIL PROTECTED] ~]# lspci -n | grep `lspci | grep Audio | awk '{print $1}'`
00:1b.0 0403: 8086:27d8 (rev 01)
[EMAIL PROTECTED] ~]# uname -a
Linux neurone 2.6.23-ARCH #1 SMP PREEMPT Sat Oct 27 09:04:14 UTC 2007 i686
Genuine Intel(R) CPU T2050 @ 1.60GHz GenuineIntel GNU/Linux
[EMAIL PROTECTED] ~]# hwdetect --show-modules
AGP : agpgart intel-agp
ACPI : ac battery button processor thermal video
PATA : ata_generic
SCSI : sd_mod sr_mod st
SATA : ahci ata_piix
USB : usbcore ehci-hcd uhci-hcd
FW : firewire-core firewire-ohci firewire-core firewire-ohci ieee1394 ohci1394
NET : e100 mii ieee80211_crypt ieee80211 ipw3945
INPUT : evdev joydev pcspkr psmouse serio_raw tsdev
PCMCIA : pcmcia_core rsrc_nonstatic yenta_socket
SOUND : snd-mixer-oss snd-pcm-oss snd-hwdep snd snd-page-alloc snd-pcm
snd-timer snd-hda-intel soundcore
VIDEO : fb_ddc nvidia nvidiafb output vgastate
OTHER : cdrom intel-rng i2c-algo-bit i2c-i801 i2c-core tifm_7xx1 tifm_core
mmc_core sdhci pci_hotplug shpchp rtc-cmos rtc-core rtc-lib crc-itu-t
[EMAIL PROTECTED] ~]# aplay --list-devices
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: Conexant Digital [Conexant Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
[EMAIL PROTECTED] ~]# lspci | grep Audio
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition
Audio Controller (rev 01)
[EMAIL PROTECTED] ~]# lsmod | grep ^snd
snd_hda_intel 286624 1
snd_seq_oss 29312 0
snd_seq_midi_event 6528 1 snd_seq_oss
snd_seq 46800 4 snd_seq_oss,snd_seq_midi_event
snd_seq_device 6924 2 snd_seq_oss,snd_seq
snd_hwdep 7300 1 snd_hda_intel
snd_pcm_oss 36896 0
snd_pcm 68996 2 snd_hda_intel,snd_pcm_oss
snd_timer 19332 2 snd_seq,snd_pcm
snd_page_alloc 8072 2 snd_hda_intel,snd_pcm
snd_mixer_oss 14464 1 snd_pcm_oss
snd 44644 11
snd_hda_intel,snd_seq_oss,snd_seq,snd_seq_device,snd_hwdep,snd_pcm_oss,snd_pcm,snd_timer,snd_mixer_oss
[EMAIL PROTECTED] ~]# cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xd2400000 irq 21
[EMAIL PROTECTED] ~]# cat /proc/asound/card0/codec#0 | grep Codec
Codec: Conexant CX20551 (Waikiki)
--
snd-hda-intel master volume doesn't control volume
https://bugs.launchpad.net/bugs/149722
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