At Wed, 11 May 2011 07:31:37 -0700 CentOS mailing list centos@centos.org wrote:
At 01:35 PM 5/7/2011, you wrote:
On 07/05/11 20:32, David wrote:
I got two recommendations: a) Used 'alsamixer' to unmute all channels. The were, as a responder suggested, muted. b) Installed kmod-alsa from elrepo. It produced a bunch of warnings which I ignored. c) I performed lspci | grep -i audio, and got
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06) 01:00.1 Audio device: nVidia Corporation High Definition Audio Controller (rev a1)
# lspci -n | grep '00:1b.0' 00:1b.0 0403: 8086:293e (rev 02)
and take the Vendor:Device ID pairing (8086:293e in my example) and search for a matching driver supporting that device:
# grep -i 8086 /lib/modules/*/modules.alias | grep -i 293e /lib/modules/2.6.18-128.el5/modules.alias:alias pci:v00008086d0000293Esv*sd*bc*sc*i* snd-hda-intel /lib/modules/2.6.18-164.el5/modules.alias:alias pci:v00008086d0000293Esv*sd*bc*sc*i* snd-hda-intel /lib/modules/2.6.18-194.el5/modules.alias:alias pci:v00008086d0000293Esv*sd*bc*sc*i* snd-hda-intel /lib/modules/2.6.18-238.9.1.el5/modules.alias:alias pci:v00008086d0000293Esv*sd*bc*sc*i* snd-hda-intel /lib/modules/2.6.18-238.el5/modules.alias:alias pci:v00008086d0000293Esv*sd*bc*sc*i* snd-hda-intel /lib/modules/2.6.18-53.el5/modules.alias:alias pci:v00008086d0000293Esv*sd*bc*sc*i* snd-hda-intel /lib/modules/2.6.18-92.el5/modules.alias:alias pci:v00008086d0000293Esv*sd*bc*sc*i* snd-hda-intel
which shows me the snd-hda-intel driver present in kernel-2.6.18-53.el5 onwards supports my hardware.
Now do the same for your hardware and show us the results.
I performed the tests as you indicated. Here's what I got...
#lspci -n | grep -i '00:1b,0' 00:1b:0 0403: 8086:3b56 (rev06) #grep '8086' /lib/modules/*/modules.alias | grep -i '3b56'
No output from the above
The test on the other device #lspci -n | grep -i '01:00.1' 01:00.1 0403: 10de:0be2 (rev a1) #grep '10de' /lib/modules/*/modules.alias | grep -i '0be2'
Try:
sauron.deepsoft.com% grep -i '10de' /lib/modules/*/modules.alias | grep bc04sc03 /lib/modules/2.6.18-238.9.1.el5/modules.alias:alias pci:v000010DEd*sv*sd*bc04sc03i00* snd-hda-intel /lib/modules/2.6.18-238.9.1.el5xen/modules.alias:alias pci:v000010DEd*sv*sd*bc04sc03i00* snd-hda-intel
It appears that *ALL* nVidia motherboard sound controllers use the same Intel chip. The *device* ID is wildcarded. The 'bc04sc03' selects sound devices as opposed to SATA, Network, etc. controllers. Oh, and the alias files have the letters in uppercase and grep *by default* is case sensitive... sauron.deepsoft.com has a nVidia-chipset motherboard and the snd-hda-intel driver works just fine. sauron.deepsoft.com is a desktop machine and I have a set of external powered speakers jacked into the audio output port.
No output from the above.
(not lookin' good?)
Just needed a more clever set of grep expressions...
It appears that you do have the proper driver for at least one of your sound controllers. The question remains: which one (if either) is connected to the internal speakers...
Question: does this laptop have a headphone/speaker jack? If so, what happens when you plug in a set of speakers or headphones in and play a test sound?
David
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos