W dniu 19.06.2011 18:20, Colin Guthrie pisze: > 'Twas brillig, and Julian Sikorski at 19/06/11 09:38 did gyre and gimble: >> Hi, >> >> this should be the final thread concerning this laptop. As I mentioned >> earlier, it has 2.1 speakers, a built-in microphone and the following >> connectors: >> - headphone out >> - microphone in; can be switched to center/lfe out >> - spdif out; can be switched to rear speaker out >> - line in; can be switched to side speaker out >> pavucontrol offers more options, some of which seem superfluous. In the >> output devices tab, you can pick from analog speakers, analog output and >> analog headphones (last 2 seem the same). > > These elements come directly from ALSA. Your amixer -c0 output will > probably show that the relevant kcontrols exist to enable all these > ports. It's perhaps something that needs to be removed from alsa to > prevent it bubbling up to PA? > >> In the input devices tab, you >> can pick microphone 1, microphone 2 and linear input. While it seems >> technically right (I don't have an external mic here to test), could it >> be possible to rename them to internal and external mic? #2 is the >> internal one. > > Yeah, this is actually already the case in git master. The original > reasoning is that the ALSA controls are very often mislabelled or > lacking sufficient information to determine which is which (even if some > hardware is labelled fine, we aim to provide a consistent experience to > everyone even if that's not as perfect as it could be on some given > hardware!). > > David has been pushing a lot of fixes to the ALSA layer to fix the > naming and thus Internal vs External Mic labels are now what is shown in > PA too. > >> Finally, the profiles in the Configuration tab do not seem to reflect >> that the machine is capable of up to 7.1 sound. I have >> - analog stereo duplex >> - analog stereo output >> - digital stereo output (iec598) and analog stereo input >> - digital stereo duplex (iec598) >> - analog stereo input >> - off >> in there. This seems to be completely off what windows offers, so I hope >> the information I provided will be enough to fix the profiles. >> Otherwise, I am happy to provide more data. > > We simply try to open the alsa "devices" surround51, surround71 etc. to > work out if the card is capable of 5.1 or 7.1 sound. If this fails the > profiles are not offered. I would suggest that there may be some special > switch you need to turn on in alsa to enable surround51 to work properly > (I have seen this on some h/w). At the moment we don't handle this too > well, so we probably need to work out a way of doing this. > > The output from amixer -c0 would likely offer some clues. > > Cheers > > Col > I am attaching the screenshot of alsamixer -c0 Julian -------------- next part -------------- A non-text attachment was scrubbed... Name: alsamixer.png Type: image/png Size: 62303 bytes Desc: not available URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20110619/298465c3/attachment-0001.png>
