[mythtv-users] SOLVED Boot Sound Volume Set to Zero, Realtek ALC888, GA-EP31-DS3L
Christopher Kerr
mythtv at theseekerr.com
Mon Mar 1 21:59:19 UTC 2010
On Tue, Mar 2, 2010 at 8:20 AM, Josh White <jaw1959 at gmail.com> wrote:
>
>
> On Mon, Mar 1, 2010 at 3:55 PM, <f-myth-users at media.mit.edu> wrote:
>>
>> > Date: Sat, 27 Feb 2010 14:00:45 +0000
>> > From: Mike Perkins <mikep at randomtraveller.org.uk>
>>
>> > Tortise wrote:
>> > [...]
>> > > 1. Open Terminal from "Applications->Accessories->Terminal"
>> > > 2. copy-paste the following command into the Terminal:
>> > > gksudo gedit /etc/init.d/alsa-utils
>> > > 3. Replace the following line (which is line 372 in the
>> > > /etc/init.d/alsa-utils file):
>> > > mute_and_zero_levels "$TARGET_CARD" || EXITSTATUS=1
>> > > with the following line:
>> > > # mute_and_zero_levels "$TARGET_CARD" || EXITSTATUS=1
>> > > So you need to comment out that line to prevent the script from
>> muting
>> > > your soundcard during boot.
>> > > 4. Reboot and recheck mixer settings
>> > >
>> > Unbelievable. Who on earth thought that resetting sound levels to
>> zero on shut
>> > down *and muting them* was a good idea in the first place?
>>
>> But wait a minute here. Below is what appears to be the relevant
>> section from /etc/init.d/alsa-utils in my Ubuntu 9.10 (-not-
>> MythBuntu; I don't know if that makes a difference).
>>
>> Yes, it looks like they're muting when alsa is stopped. But it also
>> appears that they're attempting to reset the levels on start; there's
>> a bunch of other logic in there to save/restore. (I have done zero
>> other debugging on this since it's not my issue, but it shouldn't be
>> hard for someone to trace through the calls in the init script.)
>>
>> In short, while muting on shutdown does seem weird, it looks like the
>> real bug is the failure to restore levels on reboot. (Unless the OP
>> is shutting down alsa and -not- rebooting and then checking levels,
>> but I don't think he said he was doing this.)
>>
>> I still think something's buggy either in restoration in general (but
>> I suspect there'd be a ton of bug reports lodged against it) or on the
>> OP's machine in particular (file permissions? something else?)
>>
>> I'd imagine other MythBuntu users would be complaining of this, too,
>> if the problem was that muting wasn't being undone on reboot. Are they?
>>
>> case "$1" in
>> start)
>> EXITSTATUS=0
>> TARGET_CARD="$2"
>> case "$TARGET_CARD" in
>> ""|all) TARGET_CARD=all ; log_action_begin_msg "Setting up ALSA"
>> ;;
>> esac
>> if ! card_OK "$TARGET_CARD"; then
>> [ "$TARGET_CARD" = "all" ] && log_action_end_msg "$( [ !
>> "$2" ] ; echo $? ; )" "none loaded"
>> exit $?
>> fi
>> preinit_levels "$TARGET_CARD" || EXITSTATUS=1
>> if ! restore_levels "$TARGET_CARD" ; then
>> sanify_levels "$TARGET_CARD" || EXITSTATUS=1
>> restore_levels "$TARGET_CARD" >/dev/null 2>&1 || :
>> fi
>> [ "$TARGET_CARD" = "all" ] && log_action_end_msg_and_exit
>> "$EXITSTATUS"
>> exit $EXITSTATUS
>> ;;
>> stop)
>> EXITSTATUS=0
>> TARGET_CARD="$2"
>> case "$TARGET_CARD" in
>> ""|all) TARGET_CARD=all ; log_action_begin_msg "Shutting down
>> ALSA" ;;
>> *) log_action_begin_msg "Shutting down ALSA card ${TARGET_CARD}"
>> ;;
>> esac
>> card_OK "$TARGET_CARD" || log_action_end_msg_and_exit "$( [ ! "$2"
>> ] ; echo $? ; )" "none loaded"
>> store_levels "$TARGET_CARD" || EXITSTATUS=1
>> mute_and_zero_levels "$TARGET_CARD" || EXITSTATUS=1
>> log_action_end_msg_and_exit "$EXITSTATUS"
>> ;;
>> restart|force-reload)
>> EXITSTATUS=0
>> $0 stop || EXITSTATUS=1
>> $0 start || EXITSTATUS=1
>> exit $EXITSTATUS
>> ;;
>> reset)
>> TARGET_CARD="$2"
>> case "$TARGET_CARD" in
>> ""|all) TARGET_CARD=all ; log_action_begin_msg "Resetting ALSA"
>> ;;
>> *) log_action_begin_msg "Resetting ALSA card ${TARGET_CARD}" ;;
>> esac
>> card_OK "$TARGET_CARD" || log_action_end_msg_and_exit "$( [ ! "$2"
>> ] ; echo $? ; )" "none loaded"
>> preinit_levels "$TARGET_CARD"
>> sanify_levels "$TARGET_CARD"
>> log_action_end_msg_and_exit "$?"
>> ;;
>> *)
>> echo "Usage: $MYNAME {start [CARD]|stop [CARD]|restart [CARD]|reset
>> [CARD]}" >&2
>> exit 3
>> ;;
>> esac
>> _______________________________________________
>> mythtv-users mailing list
>> mythtv-users at mythtv.org
>> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
>
>
> I've had similar trouble on two different ubutnu machines. One of them
> seemed to solve the problem by itself, and almost immediately thereafter, my
> other machine that was not exhibiting the behavior, started exhibiting the
> behavior. Sounds like a ghost to me. The one that had the problem and
> solved it by itself was an ASUS board (I'm not sure who makes the on board
> sound card) and the one that began doing it afterword, is a Zotac ion B
> board (also not sure what sound chip that has). So it could be related, or
> not. I've done nothing to affect the sound other than to unmute it with
> alsamixer whenever I reboot (which isn't all that often). When I do reboot,
> it's normally at an inconvenient time, and definitely has an impact on the
> WAF.
Mine started to do it yesterday (gigabyte G31M-ES2L, Mythbuntu 9.10).
Most annoying.
- Chris
More information about the mythtv-users
mailing list