I have just updated my Elementary OS Luna (and some KXStudio elements with it) and after restart the system I realised that I have no audio output (not sound at all)
So I open Claudia and try to force a restart of jack, with no lucky at all... I check the log and this is what is shows:
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Tue Dec 31 22:41:14 2013: Starting jack server...
Tue Dec 31 22:41:14 2013: JACK server starting in realtime mode with priority 10
Tue Dec 31 22:41:14 2013: ERROR: cannot register object path "/org/freedesktop/ReserveDevice1/Audio1": A handler is already registered for /org/freedesktop/ReserveDevice1/Audio1
Tue Dec 31 22:41:14 2013: ERROR: Failed to acquire device name : Audio1 error : A handler is already registered for /org/freedesktop/ReserveDevice1/Audio1
Tue Dec 31 22:41:14 2013: ERROR: Audio device hw:1 cannot be acquired...
Tue Dec 31 22:41:14 2013: ERROR: Cannot initialize driver
Tue Dec 31 22:41:14 2013: ERROR: JackServer::Open failed with -1
Tue Dec 31 22:41:14 2013: ERROR: Failed to open server
Tue Dec 31 22:41:20 2013: ------------------
Tue Dec 31 22:41:20 2013: Controller activated. Version 1.9.10 (unknown) built on Wed Aug 28 10:21:52 2013
Tue Dec 31 22:41:20 2013: Loading settings from "/home/diego/.config/jack/conf.xml" using expat_2.0.1 ...
Tue Dec 31 22:41:20 2013: setting parameter 'engine':'driver':'(null)' to value "alsa"
Tue Dec 31 22:41:20 2013: setting parameter 'engine':'realtime':'(null)' to value "true"
Tue Dec 31 22:41:20 2013: setting parameter 'engine':'verbose':'(null)' to value "false"
Tue Dec 31 22:41:20 2013: setting parameter 'engine':'client-timeout':'(null)' to value "500"
Tue Dec 31 22:41:20 2013: setting parameter 'drivers':'dummy':'rate' to value "44100"
Tue Dec 31 22:41:20 2013: setting parameter 'drivers':'dummy':'period' to value "1024"
Tue Dec 31 22:41:20 2013: setting parameter 'drivers':'dummy':'wait' to value "21333"
Tue Dec 31 22:41:20 2013: setting parameter 'drivers':'alsa':'device' to value "hw:1"
Tue Dec 31 22:41:20 2013: setting parameter 'drivers':'alsa':'rate' to value "44100"
Tue Dec 31 22:41:20 2013: setting parameter 'drivers':'alsa':'period' to value "1024"
Tue Dec 31 22:41:20 2013: setting parameter 'drivers':'alsa':'nperiods' to value "2"
Tue Dec 31 22:41:20 2013: setting parameter 'drivers':'alsa':'hwmon' to value "false"
Tue Dec 31 22:41:20 2013: setting parameter 'drivers':'alsa':'hwmeter' to value "false"
Tue Dec 31 22:41:20 2013: setting parameter 'drivers':'alsa':'duplex' to value "false"
Tue Dec 31 22:41:20 2013: setting parameter 'drivers':'alsa':'softmode' to value "false"
Tue Dec 31 22:41:20 2013: setting parameter 'drivers':'alsa':'monitor' to value "false"
Tue Dec 31 22:41:20 2013: setting parameter 'drivers':'alsa':'dither' to value "n"
Tue Dec 31 22:41:20 2013: setting parameter 'drivers':'alsa':'shorts' to value "false"
Tue Dec 31 22:41:20 2013: setting parameter 'drivers':'alsa':'hw-alias' to value "true"
Tue Dec 31 22:41:20 2013: Listening for D-Bus messages
Tue Dec 31 22:41:21 2013: Starting jack server...
Tue Dec 31 22:41:21 2013: JACK server starting in realtime mode with priority 10
Tue Dec 31 22:41:21 2013: Acquired audio card Audio1
Tue Dec 31 22:41:21 2013: creating alsa driver ... hw:1|hw:1|1024|2|44100|0|0|nomon|swmeter|-|32bit
Tue Dec 31 22:41:21 2013: Using ALSA driver HDA-Intel running on card 1 - HDA Intel PCH at 0xdfc00000 irq 51
Tue Dec 31 22:41:21 2013: ERROR: ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to capture-only mode
Tue Dec 31 22:41:21 2013: ERROR: Cannot initialize driver
Tue Dec 31 22:41:21 2013: ERROR: JackServer::Open failed with -1
Tue Dec 31 22:41:21 2013: ERROR: Failed to open serverHere is a sreenshot of my config:
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cat ~/.jackdrc
/usr/bin/jackd -dalsa -dhw:0 -r44100 -p1024 -n2Thanks!