Why CD audio reproduction stop working after about 20 minutes

Why CD audio reproduction stop working after about 20 minutes.
The energy saving options seem to be ok

Welcome to Apple Support Communities marimonf. We are sorry you are having problems with what sounds like you burning a CD.  These documents may provide some useful information:
iTunes 12 for Mac: If you have trouble burning a disc
iTunes 12 for Mac: Burn settings
iTunes 12 for Mac: Create your own CDs and DVDs

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  • USB audio DAC stops working after suspend

    I didn't update my mediacenter running arch for a few months so I figured i'd reinstall it because of the filesystem, /lib and grub changes. Now after reinstalling I'm running into the issue that my USB audio DAC stops working after a suspend.
    After a suspend speaker-test gives me the following error:
    [user@mediacenter ~]$ speaker-test -c 2
    speaker-test 1.0.25
    Playback device is default
    Stream parameters are 48000Hz, S16_LE, 2 channels
    Using 16 octaves of pink noise
    ALSA lib pcm_dmix.c:1068:(snd_pcm_dmix_open) unable to open slave
    Playback open error: -77,File descriptor in bad state
    I've tried replugging my DAC and restarting ALSA, without any success. I have to reboot to get sound again.
    Output of /var/log/pm-suspend.log
    za jul 21 19:20:24 CEST 2012: performing suspend
    Initial commandline parameters:
    za jul 21 19:22:06 CEST 2012: Running hooks for suspend.
    Running hook /usr/lib/pm-utils/sleep.d/00logging suspend suspend:
    Linux mediacenter 3.4.6-1-ARCH #1 SMP PREEMPT Fri Jul 20 08:21:26 CEST 2012 x86_64 GNU/Linux
    Module Size Used by
    rfcomm 33627 0
    bluetooth 190551 3 rfcomm
    rfkill 15604 1 bluetooth
    r8169 49386 0
    acpi_cpufreq 5933 0
    mperf 1267 1 acpi_cpufreq
    snd_usb_audio 93519 2
    snd_hwdep 6300 1 snd_usb_audio
    snd_usbmidi_lib 18744 1 snd_usb_audio
    snd_rawmidi 18479 1 snd_usbmidi_lib
    snd_seq_device 5300 1 snd_rawmidi
    snd_pcm 74958 2 snd_usb_audio
    snd_page_alloc 7217 1 snd_pcm
    snd_timer 18966 2 snd_pcm
    mei 32152 0
    snd 58997 9 snd_usb_audio,snd_hwdep,snd_timer,snd_pcm,snd_rawmidi,snd_usbmidi_lib,snd_seq_device
    usb_storage 44760 0
    uas 9285 0
    i2c_i801 8180 0
    microcode 12185 0
    iTCO_wdt 12813 0
    coretemp 5654 0
    iTCO_vendor_support 1929 1 iTCO_wdt
    crc32c_intel 1987 0
    joydev 9991 0
    soundcore 5410 1 snd
    mii 4123 1 r8169
    firewire_ohci 31677 0
    firewire_core 51552 1 firewire_ohci
    pcspkr 1899 0
    serio_raw 4653 0
    processor 26567 1 acpi_cpufreq
    crc_itu_t 1363 1 firewire_core
    evdev 9754 5
    ext4 424175 3
    crc16 1359 2 ext4,bluetooth
    jbd2 73919 1 ext4
    mbcache 5977 1 ext4
    sr_mod 14823 0
    sd_mod 29239 5
    cdrom 35648 1 sr_mod
    usbhid 36430 0
    hid 85477 1 usbhid
    ahci 20549 4
    libahci 20023 1 ahci
    uhci_hcd 23404 0
    pata_jmicron 2480 0
    pata_acpi 3408 0
    ata_generic 3295 0
    ehci_hcd 41026 0
    libata 167611 5 ahci,pata_acpi,libahci,ata_generic,pata_jmicron
    scsi_mod 132974 5 uas,usb_storage,libata,sd_mod,sr_mod
    usbcore 147565 8 uas,uhci_hcd,snd_usb_audio,usb_storage,snd_usbmidi_lib,ehci_hcd,usbhid
    usb_common 954 1 usbcore
    i915 438144 4
    video 11307 1 i915
    button 4502 1 i915
    i2c_algo_bit 5391 1 i915
    intel_agp 10936 1 i915
    intel_gtt 14047 3 i915,intel_agp
    drm_kms_helper 33051 1 i915
    drm 208958 5 i915,drm_kms_helper
    i2c_core 20369 5 drm,i915,i2c_i801,drm_kms_helper,i2c_algo_bit
    total used free shared buffers cached
    Mem: 3721220 336284 3384936 0 16624 156204
    -/+ buffers/cache: 163456 3557764
    Swap: 265068 0 265068
    /usr/lib/pm-utils/sleep.d/00logging suspend suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/00powersave suspend suspend:
    /usr/lib/pm-utils/sleep.d/00powersave suspend suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/01grub suspend suspend:
    /usr/lib/pm-utils/sleep.d/01grub suspend suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/49bluetooth suspend suspend:
    /usr/lib/pm-utils/sleep.d/49bluetooth suspend suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/75modules suspend suspend:
    /usr/lib/pm-utils/sleep.d/75modules suspend suspend: success.
    Running hook /etc/pm/sleep.d/90alsa suspend suspend:
    /etc/pm/sleep.d/90alsa suspend suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/90clock suspend suspend:
    /usr/lib/pm-utils/sleep.d/90clock suspend suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/94cpufreq suspend suspend:
    /usr/lib/pm-utils/sleep.d/94cpufreq suspend suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/95led suspend suspend:
    /usr/lib/pm-utils/sleep.d/95led suspend suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/98video-quirk-db-handler suspend suspend:
    Kernel modesetting video driver detected, not using quirks.
    /usr/lib/pm-utils/sleep.d/98video-quirk-db-handler suspend suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/99video suspend suspend:
    kernel.acpi_video_flags = 0
    /usr/lib/pm-utils/sleep.d/99video suspend suspend: success.
    za jul 21 19:22:07 CEST 2012: performing suspend
    za jul 21 19:22:22 CEST 2012: Awake.
    za jul 21 19:22:22 CEST 2012: Running hooks for resume
    Running hook /usr/lib/pm-utils/sleep.d/99video resume suspend:
    /usr/lib/pm-utils/sleep.d/99video resume suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/98video-quirk-db-handler resume suspend:
    /usr/lib/pm-utils/sleep.d/98video-quirk-db-handler resume suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/95led resume suspend:
    /usr/lib/pm-utils/sleep.d/95led resume suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/94cpufreq resume suspend:
    /usr/lib/pm-utils/sleep.d/94cpufreq resume suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/90clock resume suspend:
    /usr/lib/pm-utils/sleep.d/90clock resume suspend: success.
    Running hook /etc/pm/sleep.d/90alsa resume suspend:
    ALSA lib pcm_dmix.c:1068:(snd_pcm_dmix_open) unable to open slave
    aplay: main:682: audio open error: File descriptor in bad state
    /etc/pm/sleep.d/90alsa resume suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/75modules resume suspend:
    Reloaded unloaded modules.
    /usr/lib/pm-utils/sleep.d/75modules resume suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/49bluetooth resume suspend:
    /usr/lib/pm-utils/sleep.d/49bluetooth resume suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/01grub resume suspend:
    /usr/lib/pm-utils/sleep.d/01grub resume suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/00powersave resume suspend:
    /usr/lib/pm-utils/sleep.d/00powersave resume suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/00logging resume suspend:
    /usr/lib/pm-utils/sleep.d/00logging resume suspend: success.
    za jul 21 19:22:23 CEST 2012: Finished.
    Output of aplay -l
    [user@mediacenter ~]$ aplay -l
    **** List of PLAYBACK Hardware Devices ****
    card 0: DAC [USB Audio DAC], device 0: USB Audio [USB Audio]
    Subdevices: 0/1
    Subdevice #0: subdevice #0
    What I'm noticing is that after a suspend "Subdevices: 0/1" gets changed to "Subdevices: 1/1".
    Any help is much appreciated!
    Last edited by Quaith (2012-07-21 17:33:59)

    Odysseus wrote:
    Unless you can find a way to stop XBMC from using your DAC, I would try hunting down the update which broke it and file a bug report with the appropriate project. https://wiki.archlinux.org/index.php/Do … g_Packages.
    I suspect it would be the kernel.
    Yes I am suspecting the kernel as well. I'll try to change some options in XBMC to maybe get this working, and if not I'll see how far I can downgrade with the kernel. My last installation was a few months old so I hope it broke not that long ago.
    Thanks for the help

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    Hold down Shift–Control while opening iTunes. You should see a dialog that says "iTunes is running in safe mode" before iTunes finishes starting up.
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    See if the issue you're experiencing persists in Safe Mode.
    If you have the same issue while iTunes is in Safe Mode, proceed to the "Create a new user account" section. If you don't experience the same issue, follow these steps to remove third-party plug-ins.
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  • My lightroom 4 stops working after a minute or so every time I turn it on.  What can I do?

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    Hi rob
    I tried reinstalling and the same thing happened.  After about 30 seconds, it just stops working?  any ideas?
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    Date: Mon, 10 Dec 2012 22:35:27 -0700
    From: [email protected]
    To: [email protected]
    Subject: My lightroom 4 stops working after a minute or so every time I turn it on.  What can I do?
    Re: My lightroom 4 stops working after a minute or so every time I turn it on. What can I do? created by Rob Cole in Photoshop Lightroom - View the full discussion
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    Please note that the Adobe Forums do not accept email attachments. If you want to embed a screen image in your message please visit the thread in the forum to embed the image at http://forums.adobe.com/message/4911298#4911298
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    Start a new discussion in Photoshop Lightroom by email or at Adobe Community
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