[CentOS] C6.5 KDE - no more audio (yesterday it was ok)

[Patrick Bervoets]

op 04-06-14 20:58, schreef Patrick Bervoets:
> Hi,
>
> I've got an HP ZBook with C6.5 and KDE. Yesterday I was able to play music, today I can't get any sound out of my pc.
>
> lspci -v
> 00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 04)
> Subsystem: Hewlett-Packard Company Device 1909
> Flags: bus master, fast devsel, latency 0, IRQ 34
> Memory at cca30000 (64-bit, non-prefetchable) [size=16K]
> Capabilities: [50] Power Management version 2
> Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
> Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
> Capabilities: [100] Virtual Channel
> Kernel driver in use: snd_hda_intel
> Kernel modules: snd-hda-intel
>
> grep snd /var/log/messages (latest boot):
> Jun 4 19:45:20 Antisana kernel: snd_hda_intel 0000:00:1b.0: power state changed by ACPI to D0
> Jun 4 19:45:20 Antisana kernel: snd_hda_intel 0000:00:1b.0: power state changed by ACPI to D0
> Jun 4 19:45:20 Antisana kernel: snd_hda_intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
>
>
> Elsewhere in messages I find a occurences of
> Jun 3 17:50:56 Antisana pulseaudio[3454]: alsa-sink.c: Waarschijnlijk is dit een fout in het ALSA-stuurprogramma ‘snd_hda_intel’. Meld dit probleem alstublieft aan de ALSA-ontwikkelaars.
> Jun 3 17:50:56 Antisana pulseaudio[3454]: alsa-sink.c: We werden gewekt met POLLOUT ingesteld -- echter een opvolgende snd_pcm_avail() gaf 0 terug of een andere waarde < min_avail.
> (but the sound worked at that moment)
>
> I tried with alsmixer, alsunmute and PCM and Master are unmuted and maxed.
>
> Any ideas?
> Thanks
>
>
>
>
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Now wait a minute, after a reboot sounds works again... feels like I'm back to standard Windows troubleshooting :-)

Anyway solved for now, sorry for the noise

Greetings
Patrick