On Fri, 09 Mar 2018 08:56:08 +0100, Jorge Fernandez Monteagudo wrote: > > Hi all! > > > I've updated my system from a 3.16.7 kernel to a 4.14.24 kernel and sound stops working. > > I have a Cirrus logic CS4207 codec. I've tracked down the problem using the '/proc/asound/card0/codec\#0' > > info. With the 3.16.7 kernel all nodes power states are: > > > Node 0x03: Power: setting=D0, actual=D0 > Node 0x0a: Power: setting=D0, actual=D0 > > and with 4.14.24 they are on > > > Node 0x03: Power: setting=D0, actual=D3 > Node 0x0a: Power: setting=D3, actual=D3 And what nodes are these? At best, please give alsa-info.sh output. > Once in this situation I'm able to go to D0 again and make the sound works. I've used > hda-verb 0.4 to SET_POWER_STATE to 0 with no luck. Finally, I've patched the 4.14.24 > to avoid changing to D3 and now the sound is working again. I know it's not the way to go > but I need the sound... It's the feature of power-saving, and can be turned off by passing the hint via "patch" firmware. If you can compile, the easiest way would be the oneliner like: --- a/sound/pci/hda/patch_cirrus.c +++ b/sound/pci/hda/patch_cirrus.c @@ -589,7 +589,7 @@ static struct cs_spec *cs_alloc_spec(struct hda_codec *codec, int vendor_nid) return NULL; codec->spec = spec; spec->vendor_nid = vendor_nid; - codec->power_save_node = 1; + // codec->power_save_node = 1; snd_hda_gen_spec_init(&spec->gen); return spec; If the widgets 0x03 and/or 0x0a have to be always turned on, we can keep them on. There are several ways to do that. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
