Please read carefully!
I've changed the way of providing the sound driver. Now I'm using the
DKMS framework so there is no need to wait for my updates. Your system
will be always updated with the correct sound driver.
I've created a package called 'lenovo-conexant-dkms'. It's a repack of
the package provided by Ubuntu Audio Development Team (Brad Figg's link
at #36).
I'm still using my old ppa (link at #39) so there is no need to change
your repositories. Just install the new package called 'lenovo-conexant-
dkms'.
A description of the changes are in my ppa. I've also included some
minor upstream changes.
One issue is remaining to resolve. After the updgrade there is still a
crackling (popping) sound when rebooting or shutting down the computer
although the crackling sound when suspending the computer was
eliminated. I'm using the following workaround to also eliminate it:
- fire up Terminal and follow the instructions
- create a script file amixer-master-mute (or download the attached one)
gksudo gedit /etc/init.d/amixer-master-mute
- insert the following code to mute the master mixer
#!/bin/sh -e
### BEGIN INIT INFO
# Provides: amixer-master-mute
# Required-Start:
# Required-Stop:
# Default-Start:
# Default-Stop: 0 6
# Short-Description: Mute the Master mixer
# Description: Mute the Master mixer to avoid
# a crackling (popping) sound
# from the speakers when rebooting
# or shutting down the computer.
### END INIT INFO
case "$1" in
start)
;;
restart|reload|force-reload)
echo "Error: argument '$1' not supported" >&2
exit 3
;;
stop)
amixer set Master mute > /dev/null
;;
*)
echo "Usage: $0 start|stop" >&2
exit 3
;;
esac
exit 0
- save the script and set the execute flag on it
sudo chmod 755 /etc/init.d/amixer-master-mute
- set to start the script when rebooting or shutting down the computer
(arguments are terminated by ".")
sudo update-rc.d amixer-master-mute start 20 0 6 .
- to remove the workaround
sudo update-rc.d -f amixer-master-mute remove
sudo rm /etc/init.d/amixer-master-mute
** Attachment added: "amixer-master-mute"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/886975/+attachment/3162181/+files/amixer-master-mute
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/886975
Title:
Lenovo sound chip Conexant CX20549 Venice doesn't work correctly.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/886975/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
