On Wed, 26 Apr 2017 09:04:46 +0200, Takashi Iwai wrote: > > On Wed, 26 Apr 2017 03:58:57 +0200, > Pierre-Louis Bossart wrote: > > > > On 04/25/2017 03:27 PM, ville.syrjala@xxxxxxxxxxxxxxx wrote: > > > From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > > > > > > Now that everything is in place let's register a PCM device for > > > each pipe of the display engine. This will make it possible to > > > actually output audio to multiple displays at the same time. And > > > it avoids modesets on unrelated displays from clobbering up the > > > ELD and whatnot for the display currently doing the playback. > > > > > > The alternative would be to have a PCM device per port, but per-pipe > > > is easier since the hardware actually works that way. > > Very nice. I just tested on a CHT Zotac box which has two connectors > > (1 HDMI and 1 DP), and I get sound concurrently on both, with hdmi > > being listed as device 2 and DP as device 0. > > I thought there were hardware restrictions but you proved me wrong. Kudos. > > > > The only point that I find weird is that the jacks are reported as > > 'on' on the 3 pipes, is there a way to tie them to an actual cable > > being used? > > The pdata check was changed to check port=-1 as the monitor off in the > patch 6. Maybe the initialization is missing? I guess the problem is that the hotplug wq is called at the initialization to retrieve the pdata for all pipes. It's called with uninitialized port=0, so all flags are on at init. And it implies the potential problem: the pdata contains the information only for a single pipe. Maybe it should keep the status/ELD for all three pipes. Takashi _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
