Hello all, I've been trying to deal with this problem for a while now, and it has me stumped. Hopefully somebody here can help point me in the right direction. First some background, which might be relevant: I'm using the integrated audio on a MSI H55M-E33 motherboard to play sound over HDMI. This goes to a surround-sound amplifier (a Sony STR-DH520) and the video continues on to a projector. This all worked beautifully until I made a change to my config: unfortunately the amplifier modifies the EDID of the projector and corrupts it, causing the wrong video mode to be set by KMS, breaking all VTs. X corrects this later - but naturally I wanted use of my VTs as well. To correct the issue, I used the kernel option to override the EDID with one I hand-corrected to include the appropiate video modes, leaving the audio information that the amplifier inserted intact, naturally. This worked and my video modes are now working perfectly. However, the following started happening: I can play 6 channel audio just fine using "speaker-test -D hdmi -c 6 -t w", _if_ my video output is off (ie: X on auto-standby). Naturally, since HDMI isn't active, this doesn't actually produce any audio on the amplifier, as expected. If I switch the video back on, I hear everything in surround sound and everything works just fine, again as expected. Using the very same command with the video already active, throws an error: "Channels count (6) not available for playbacks: Invalid argument" Using 2 channels instead of 6, does work. It seems like ALSA refuses to initiate 6 channel audio with the video active, but has no problem using it as long as it was initiated with the video off. Note: I'm not sure if this all is related to the EDID change or not. It seems to have happened at around the same time, and I doubt that's coincidence... Any help would be much appreciated! My apologies if this is the wrong mailing list - I thought this would be the most appropriate location to ask for assistance, but please do point me towards somewhere else if this is not the right place. - Jaron ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
