From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lee Revell Subject: Re: potential emu10k1 bug/issue for Audigy2 ZS Platinum Pro Date: Thu, 10 Feb 2005 15:26:46 -0500 Message-ID: <1108067206.10310.7.camel@krustophenia.net> References: <420B8B23.2090404@vt.edu> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit In-Reply-To: <420B8B23.2090404@vt.edu> Sender: alsa-devel-admin@lists.sourceforge.net Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Rick Wright Cc: alsa-devel List-Id: alsa-devel@alsa-project.org [forwarding to alsa-devel] On Thu, 2005-02-10 at 11:26 -0500, Rick Wright wrote: > Hi Lee, > > Sorry to keep bothering you re the emu10k1 driver, but I've finally had > some success with multichannel I/O and now think I have found some > bugs. I really want to thank you for your efforts in maturing this driver. > > I've never filed a bug report for anything in Linux, but I would like to > contribute to the community. Could you give me an overview of the > process so that I can use that avenue for all future issues I find? > > I've finally gotten the multichannel capture to show me 16 channels by > default like everyone assured me it should do. Not sure how this > happened. I was fooling with trying to use ALSA CVS and apply your v009 > patch (per your suggestions), but couldn't get it to compile (newb > problem..). Anyway, I finally reverted to ALSA 1.0.8 patched with your > v008 and suddenly it gave me 16 capture channels using the original > asound.state file that I previously had only 2 cpature channels with (I > had backed it up, then copied it back after reinstalling the patched > 1.0.8). I've no idea what happened to make it work, but work it does! > > The problem: > The Left & Right PCM channel volume controls (gnome-control-volume) are > reversed for each of the L/R stereo output signals. > > I remember you mentioned that you couldn't guarantee all the correct > channel mapping for every card out there, so here is my contribution. > I've done some thorough testing to map capture/playback ports to > physical channels on my Audigy2 Platinum Pro card w/external connection > box and here are my results (this is both FYI and relevant info to the > bug/issue I believe I've found): > > Inputs to PCM Capture ports: (with my 5.1 setup -- I tried to > keep the input routing is consistent with the 5.1 output routing) > Line In #1 Left = capture_10 (LF) > Line In #1 Right = capture_9 (RF) > Line In #2 Left = capture_12 (LR) > Line In #2 Right = capture_11 (RR) > Line In #3 Left = capture_13 (Cen) > Line In #3 Right = capture_14 (LFE) > > Outputs to PCM Playback ports: (5.1 setup > described in Audigy2 product literature) > Stereo Output #1 Left = playback_10 (LF) > Stereo Output #1 Right = playback_9 (RF) > Stereo Output #2 Left = playback_4 (LR) > Stereo Output #2 Right = playback_3 (RR) > Stereo Output #3 Left = playback_8 (Cen) > Stereo Output #3 Right = playback_7 (LFE) > > The first observation is that it's odd that all of the L/R channel pairs > are backwards from the typical Left-comes-first configuration (except > Line In #3) > > The real problem is that the PCM output volume control sliders are > backwards (or perhaps the remapping the channels to L/R, rather than R/L > will fix this). For example: PCM Front L slider controls the volume of > playback_9 which is the RIGHT Front signal, PCM Front R slider controls > playback_10 which is the LEFT Front signal. This is true for all of the > Stereo Output channel pairs. If you think about it, the PCM sliders are > actually controlling the correct physical L & R outputs on the card, but > the alsa_pcm:playback signals being routed to those physical channels > are reversed, make sense? > > Is this a bug? If so, what is the proper place/way to report it so that > I don't use any more of your time? Has it already been fixed? I know > you mentioned v008 still had problems... > > Many thanks for both your work and your advice, > -Rick > ISTR that this is a hardware bug, and the kX driver works around it. I will look into it. Are the channels reversed if you use JACK with the default stereo PCM, hw:0,0? Lee ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click