2012-8-22 下午5:13 於 "David Henningsson" <<a href="mailto:david.henningsson@canonical.com">david.henningsson@canonical.com</a>> 寫道： > > On 08/22/2012 10:08 AM, Mikel Astiz wrote: >> >> From: Mikel Astiz <<a href="mailto:mikel.astiz@bmw-carit.de">mikel.astiz@bmw-carit.de</a>> >> >> A port with the availability state flag set to unknown should not be >> considered an active port. >> --- >> src/modules/module-switch-on-port-available.c | 2 +- >> 1 files changed, 1 insertions(+), 1 deletions(-) >> >> diff --git a/src/modules/module-switch-on-port-available.c b/src/modules/module-switch-on-port-available.c >> index 1da612d..8c16821 100644 >> --- a/src/modules/module-switch-on-port-available.c >> +++ b/src/modules/module-switch-on-port-available.c >> @@ -85,7 +85,7 @@ static pa_bool_t try_to_switch_profile(pa_card *card, pa_device_port *port) { >> PA_IDXSET_FOREACH(sink, card->sinks, state2) { >> if (!sink->active_port) >> continue; >> - if (sink->active_port->available != PA_PORT_AVAILABLE_NO) >> + if (sink->active_port->available == PA_PORT_AVAILABLE_YES) >> found_active_port = TRUE; >> } >> >> > > I think this will break the following use case (on a normal laptop) : > > Assume we plug in HDMI. With this patch we will get inconsistent behaviour: if headphones are plugged in (available = yes), we won't switch to HDMI, but if not (speakers are available = unknown), we will switch to HDMI. > > if you look at those bug reports of no sound for those on-board ac97 codecs with ubuntu 12.04 <a href="https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1033996">https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1033996</a> how does pulseaudio determine which controls are effective in the headphone path and speaker path of those ac97 codecs ? the analog-output-stereo profile for the line out jack is missing ( 0.056| 0.000) D: [pulseaudio] alsa-mixer.c: Removing path 'analog-output' as it is a subset of 'analog-output-headphone is there any solution for those snd-intel8x0 and those onboard ac97 codecs with headphone playback volume control ( no ctljack control and no phantom port)? <a href="http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/src/modules/alsa/alsa-mixer.c?id=91b25005978d343a989c9485e226dc9a18a2fb28">http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/src/modules/alsa/alsa-mixer.c?id=91b25005978d343a989c9485e226dc9a18a2fb28</a> <a href="http://git.freedesktop.org/pulseaudio/pulseaudio/commit/src/modules/alsa/alsa-mixer.c?id=5c832a5b8a2bc2ce7447eab10acaeed30cd3ed78">http://git.freedesktop.org/pulseaudio/pulseaudio/commit/src/modules/alsa/alsa-mixer.c?id=5c832a5b8a2bc2ce7447eab10acaeed30cd3ed78</a>