On Sun, 28 Mar 2010 22:29:29 +0200 Janusz Krzysztofik <jkrzyszt@xxxxxxxxxxxx> wrote: > With recent (2.6.34) chnages in PCM handling, capture stopped working on my > OMAP1510 based Amstrad Delta videophone. > > Using 2.6.34-rc2, I was able to correct the problem in 3 different ways: > > 1. reverting commit 7b3a177b0d4f92b3431b8dca777313a07533a710, > 2. enabling additional jiffies check with > echo 4 >/proc/asound/card0/pcm0c0/xrun_debug > 3. applying the patch below. > > Since I wasn't able to reproduce the problem on my i686 PC, I guess the > problem is probably machine specific. > > The patch reuses the method for software emulation of missing hardware > pointer, already implemented for playback on OMAP1510. It's possible that > event if a hardware pointer is available for capture on this machine, its > behaviour may be not compatible with what upper layer expects. > > If you think the problem may be more general and should be solved differently, > on a higher level, I can try to work more on it if you give me a hint. > I don't have anything against this patch as it makes the playback/capture code uniform on 1510 but I don't understand why the capture broke now if it was working before. What I was thinking if there has been always some overruns which were not detected on 2.6.34-rc anymore and that caused somehow the capture not working on 1510. Could you try does a patch below have any effect? http://mailman.alsa-project.org/pipermail/alsa-devel/2010-March/026487.html -- Jarkko _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
