Public bug reported:
dper...@argos$ alsamixer
No mixer elems found
With linux-backports-modules-alsa-2.6.31-17-generic, sound just worked.
Now it has an unknown symbol error when trying to load the backported
"snd.ko"
TROUBLESHOOTING:
dper...@argos$ lsmod | grep '^(snd|sound)' | awk '{print "rmmod "$1}' |
sudo bash
dper...@argos$ sudo insmod /lib/modules/2.6.31-18-generic/updates/alsa/snd.ko
FATAL: Error inserting snd
(/lib/modules/2.6.31-18-generic/updates/alsa/snd.ko): Unknown symbol in module,
or unknown parameter (see dmesg)
FATAL: Error running install command for snd
dper...@argos$ dmesg | grep snd
[15159.601963] snd: Unknown symbol unregister_sound_special
[15159.602343] snd: Unknown symbol register_sound_special_device
[15159.603482] snd: Unknown symbol sound_class
NOTE:
I listed my specific system, but believe the noted bug will stop any of
the backported alsa drivers from loading.
** Affects: linux-meta (Ubuntu)
Importance: Undecided
Status: New
--
linux-backports-modules-alsa-2.6.31-18-generic in proposed no longer works on a
macbook pro 5,3
https://bugs.launchpad.net/bugs/506622
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