Created attachment 350592 [details] emerge --info firefox Firefox refuses to play sounds (i.e. HTML5 without flash) when a .asoundrc using plugins is used. All the other applications and the flash plugin work as expected. The following .asoundrc works: pcm.!default { type plug slave { pcm "hw:0,0" } } But if we use an alsa plugin like dmix it won't work, for example: pcm.!default { type plug slave { pcm "dmixer" } } pcm.dmixer { type dmix ipc_key 1037 ipc_key_add_uid false ipc_perm 0666 slave { pcm "hw:0,0" } }
Ok delving a little bit more in it it seems that the issue only arises when pcm.dmixer contains: pcm.dmixer { type dmix ipc_key 1037 # must be unique! ipc_key_add_uid false # let multiple users share ipc_perm 0666 # IPC permissions for multi-user sharing (octal, default 0600) slave { pcm "hw:0,0" # you cannot use a "plug" device here, darn. # period_time 0 #period_size 2048 # must be power of 2 # buffer_size 8192 # dito. It format "S32_LE" # periods 128 # dito. #rate 192000 # with rate 8000 you *will* hear, rate 48000 # with rate 8000 you *will* hear, # if ossmix is used :) } # bindings are cool. This says, that only the first # two channels are to be used by dmix, which is # enough for (most) oss apps and also lets # multichannel chios work much faster: bindings { 0 0 # from 0 => to 0 1 1 # from 1 => to 1 } } Changing format "S32_LE" to format "S16_LE" fixes the issue. The thing is that only firefox has issues with this output format.
User reports problem is resolved for the moment.
