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Date: Mon, 10 Mar 2008 20:34:24 +1300 From: Michael Cree <mcree@...on.net.nz> To: Bob Tracy <rct@...s.com> CC: Ivan Kokshaysky <ink@...assic.park.msu.ru>, linux-kernel@...r.kernel.org, linux-alpha@...r.kernel.org Subject: Re: [regression] 2.6.25-rc4 snd-es18xx broken on Alpha Bob Tracy wrote: > Supposedly with the ES1888, dma1 is for capture, dma2 is for > playback. dma2 == 5 is a 16-bit channel, yes? That could explain > much... > > As for the values "chosen" for dma1 and dma2, they are the ones that > keep showing up in the Alpha sound "howto" postings/documents. Running 'show config' in SRM on my Alphas (PWS500au and XP1000) reveals the settings (except possibly for mpu_port) for the ESS1888 sound chip. I recall that they are as reported in Alpha sound howtos. I hadn't been using the ESS1888 for awhile, but have just tried it out since you reported problems. I am running kernel 2.6.24.3 and Debian testing on the XP1000. I tried playing a number of wav files with alsa's aplay, sox's play and with mocp. I found that aplay and mocp worked reliably through the ESS1888. Sox's play on some files did play back a small extra segment of the file - particularly on short files and usually some section near the end of the file - once it had completed playing the file once; maybe this is what you are also observing. More onerously, my testing eventually ended in a complete system lock up! I ran play (or was it aplay - sorry can't remember now) and the system locked up. Got a response with ping across the network but couldn't log in via ssh. Have been playing mplayer through the ESS1888 for the last couple of days (don't like it though - the sound quality of the ESS1888 is not good enough for my ears) and haven't had another one of those lockups since. Cheerz Michael. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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