On Tue, Oct 7, 2008 at 12:07 PM, Takashi Iwai <tiwai@xxxxxxx> wrote: > At Tue, 7 Oct 2008 11:46:58 +0200, > Klaas De Craemer wrote: >> >> On Tue, Oct 7, 2008 at 7:44 AM, Takashi Iwai <tiwai@xxxxxxx> wrote: >> > At Mon, 6 Oct 2008 19:10:14 +0200, >> > Klaas De Craemer wrote: >> >> >> >> On Mon, Oct 6, 2008 at 12:57 PM, Takashi Iwai <tiwai@xxxxxxx> wrote: >> >> > [please don't drop Cc to alsa-devel ML] >> >> > >> >> > At Mon, 6 Oct 2008 12:48:43 +0200, >> >> > Klaas De Craemer wrote: >> >> >> >> >> >> Hello, >> >> >> >> >> >> I'm sure that the audioquality will degrade somewhat because of the additional amplification, >> >> >> but before, the HP-out was not usable at all. I had to use an external ampli just to use my >> >> >> headphones, even after turning all volume sliders to 100%. Then again, when removing the HP, >> >> >> the volume though the internal speakers was way too loud... >> >> >> >> >> >> I'm not sure what you mean with the output pin and headphone control, but I have uploaded the >> >> >> output of the codegraph tool before and after my modification here: >> >> >> http://users.vtk.be/~s0159120/codec_original.svg >> >> >> http://users.vtk.be/~s0159120/codec_final.svg >> >> >> >> >> >> Below is the output of alsa-info with the patched module >> >> >> Klaas >> >> > >> >> > Thanks. >> >> > >> >> > So, if I understand correctly, when the pin 0x0a is connected directly >> >> > from DAC0 0x10, the output level is too low even if you set the all >> >> > volumes maximal. >> >> >> >> That is correct. >> >> >> >> >> >> > In the alsa-info.sh output, I see the following: >> >> >> Node 0x10 [Audio Output] wcaps 0xd0c05: Stereo Amp-Out R/L >> >> >> Amp-Out caps: N/A >> >> >> Amp-Out vals: [0x5e 0x5e] >> >> > >> >> > which means that you decrease the output level intentionally. >> >> > Is the HP output still too low even if you set to the higher value? >> >> >> >> >> >> No, after the patch I don't need 100% anymore. >> > >> > Of course not :) >> > >> >> The HP output is fine >> >> now, and I can tune it up and down a bit. Before using the mixer-amp, >> >> going from 90 to 100 resulted in going from no sound to little sound. >> >> Now the range is more useful. >> > >> > Could you check the raw value of the widget 0x10 without your patch? >> > The percent doesn't tell you exactly what you changed. >> > >> > >> > Takashi >> > >> >> I have pasted the output of /proc/asound/card0/codec#0 below, without >> the patch. However, I'm not sure what you're exactly looking for? I'm >> quite new to all this stuff , but I'd be more than happy to help out >> more, so feel free to ask anything. > > The mixer volume level in percentage might be different from the raw > value of the NID 0x10 (or 0x11?) amps because of volume-knob stuff. > I just wanted to make sure that a really high value is set to the > amp. > > OTOH, if it happens only with the headphone (I suppose the loud enough > output from the speaker after unplugging the headphone), this isn't a > matter of the DAC amp value. But, with this information, can something be done about it in future releases? Maybe a model-option? I also checked the output by connecting earplugs and by using the jack as lineout to my hifi, but it is again quite low-volume. So that rules out a "bad" headphone. Klaas ps: it also seems like most of this conversation is not listed in the alsa-devel list? >> Also related, in windows (yeah i know), using the IDT drivers, the >> volume is extremely high :) So I went searching in the driver files >> and it seems that the widget configuration is specified there in an >> ini file. As far as I can see, the mixer is not configured, but an >> external amp is mentioned. Could it be that the external amp of 0x0A >> is not used in snd-hda-intel? Or maybe it refers to the "+3dBV output >> option on headphone capable ports" as mentioned in the datasheet... > > This seems to be the normal pin control bit 7 to me. And we already > set it. > > BTW, you can use hda-verb program to change the verb dynamically. > Build the driver with CONFIG_SND_HDA_HWDEP=y, and you'll have the > access to hwdep device, e.g. /dev/snd/hwC0D0. The device number > depends on the codec slot. > ftp://ftp.suse.com/pub/people/tiwai/misc/hda-verb-0.2.tar.bz2 > > > thanks, > > Takashi > >> Klaas >> _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
