Re: Sound layout broken on dist-upgrade
On Fri, 23 Sep 2005 18:03:33 -0400 (EDT)
Brandon Kuczenski <brandon@301south.net> wrote:
> I just dist-upgraded a laptop that had been running Sarge from pre-release
> days to the current testing distribution. It has a custom 2.6.8 kernel
> (the customization was just including an APM option that is specific for
> Thinkpad laptops).
>
> The sound, pre-upgrade, was a little tenuous, I suppose, but it worked.
> I cannot recall if it was using alsa or not, but I think it was (xmms was
> set to libalsa output plugin). I think I had to blacklist the i810_audio
> module in /etc/discover.conf to get it to work (i added the line 'skip
> i810_audio' to the bottom of discover.conf).
>
> Now, post-upgrade, the only audio I can hear is PC-speaker beeps when I,
> e.g., press the down-arrow when I am at the bottom of a file in less. I
> could not hear these beeps before and I do not wish to hear them; I don't
> know where they came from or how to turn them off. When XMMS plays, the
> level bars bounce up and down but no sound comes out. I can run or not
> run esd -- the effect is the same regardless of which output plugin I have
> selected for XMMS. Xine also fails to generate sound, as does the gnome
> CD player, so I don't think it's an application problem.
>
> I never understood linux sound very well in the first place and now I
> don't know where to look to begin to fix this problem. I am asking in
> this forum because I believe it is the role of the distro to handle sound
> output, particularly to maintain its functionality across upgrades.
> However, if there's a better forum to ask, I'd appreciate a redirect from
> anyone here.
>
> Basically:
> 1) should I be using alsa? if not, I assume OSS?
> 2) whatever the answer to (1) is, how do I tell if it's working?
> 3) once whatever (1) is is working according to (2), how do I get
> applications to play sound?
>
> Here is the output of lsmod:
> Module Size Used by
> af_packet 20744 2
> md5 4096 1
> ipv6 230020 10
> ds 17796 4
> lp 10436 2
> apm 19816 2
> openafs 461828 1
> parport_pc 31936 1
> parport 37448 2 lp,parport_pc
> floppy 55124 0
> irtty_sir 8320 0
> sir_dev 18092 1 irtty_sir
> irda 167488 2 irtty_sir,sir_dev
> crc_ccitt 2432 1 irda
> pcspkr 3816 0
> e100 30208 0
> mii 4864 1 e100
> yenta_socket 19328 0
> pcmcia_core 63684 2 ds,yenta_socket
> snd_intel8x0 33068 1
> snd_ac97_codec 59652 1 snd_intel8x0
> snd_pcm_oss 48168 0
> snd_mixer_oss 17152 1 snd_pcm_oss
> snd_pcm 86052 2 snd_intel8x0,snd_pcm_oss
> snd_timer 23300 1 snd_pcm
> snd_page_alloc 11144 2 snd_intel8x0,snd_pcm
> gameport 4736 1 snd_intel8x0
> snd_mpu401_uart 7296 1 snd_intel8x0
> snd_rawmidi 23232 1 snd_mpu401_uart
> snd_seq_device 7944 1 snd_rawmidi
> snd 51940 11 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device
> soundcore 9824 1 snd
> hw_random 5524 0
> uhci_hcd 29200 0
> usbcore 104676 3 uhci_hcd
> intel_agp 20512 1
> agpgart 31784 1 intel_agp
> tsdev 7168 0
> evdev 9088 0
> psmouse 17928 0
> mousedev 9996 2
> ide_cd 38276 0
> cdrom 35744 1 ide_cd
> rtc 11960 0
> ext3 109800 1
> jbd 54424 1 ext3
> ide_generic 1664 0
> piix 12448 1
> ide_disk 16768 3
> ide_core 125400 4 ide_cd,ide_generic,piix,ide_disk
> unix 25904 428
>
> Regards,
> Brandon
>
>
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Hi Brandon,
I'm not an expert, but I think Alsa is THE choice.
Calling alsamixer (a terminal GUI to adjust volume), you should check that the output is not muted : at the bottom of each channel bar, there is either a "OO" (sound is enabled) or a "MM" (muted). Pressing the M key should unmute the previously muted channel(s).
Maybe it is your problem..? I give this hint as it happens very frequently.
Regards,
Dimitri
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