Sound problems on a C3600
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Quoted 6 lines · Julian Stecklina
Hello,
I am trying to get my HP Visualize C3600 to output some sound, but without luck so far. Both the onboard AD1889 sound chip and a Soundblaster Live! PCI only produce highly distorted noises with the 2.6.20.1 kernel.
That "sounds" like an old alsa-on-parisc bug that I thought was fixed, but could you try using the OSS emulation instead of native ALSA, see if it does any better?
Thanks
Signature · 6 lines
Thibaut VARENE http://www.parisc-linux.org/~varenet/ _______________________________________________ parisc-linux mailing list [email protected] http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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Quoted 11 lines · Thibaut VARENE
Quoted 6 lines · Julian Stecklina
Hello,
I am trying to get my HP Visualize C3600 to output some sound, but without luck so far. Both the onboard AD1889 sound chip and a Soundblaster Live! PCI only produce highly distorted noises with the 2.6.20.1 kernel.
That "sounds" like an old alsa-on-parisc bug that I thought was fixed, but could you try using the OSS emulation instead of native ALSA, see if it does any better?
Tests done using the onboard AD1889 without any .asoundrc:
Quoted 1 line
mplayer -ao oss ...
...
AO: [oss] 44100Hz 2ch s16be (2 bytes per sample)
...
Works!
Quoted 1 line
mplayer -ao alsa ...
alsa-init: requested format: 44100 Hz, 2 channels, 8
alsa-init: using ALSA 1.0.14rc1
alsa-init: setup for 1/2 channel(s)
alsa-init: using device default
alsa-init: pcm opened in blocking mode
alsa-init: chunksize set to 1024
alsa-init: fragcount=16
alsa-init: got buffersize=65536
alsa-init: got period size 1024
alsa: 44100 Hz/2 channels/4 bpf/65536 bytes buffer/Signed 16 bit Big Endian
AO: [alsa] 44100Hz 2ch s16be (2 bytes per sample)
Doesn't work, noise. (Endian problem? Mplayer's fault?)
Quoted 1 line
mplayer -ao alsa:device=hw=0,0 ...
...
alsa-init: requested format: 44100 Hz, 2 channels, 8
alsa-init: using ALSA 1.0.14rc1
alsa-init: setup for 1/2 channel(s)
alsa-init: using device hw:0
alsa-init: pcm opened in blocking mode
[AO_ALSA] Format s16be is not supported by hardware, trying default.
alsa-init: chunksize set to 1024
alsa-init: fragcount=16
alsa-init: got buffersize=65536
alsa-init: got period size 1024
alsa: 44100 Hz/2 channels/4 bpf/65536 bytes buffer/Signed 16 bit Little Endian
AO: [alsa] 44100Hz 2ch s16le (2 bytes per sample)
...
Works?!
I then did some tests using mpg123:
An mpg123 using OSS produces only noise as well (seems to be the endian issue again). An ALSA mpg123 produces some "cracks" and "scritches" (my English is probably not good enough to properly describe this), unless I
cause some disk access, then it produces distorted (but sometimes
recognizable) sound...
uname -a:
Linux efficio 2.6.20.1-hppa #12 Mon May 7 17:40:45 CEST 2007 parisc PA8600 (PCX-W+) 9000/785/C3600 GNU/Linux
I am happy to supply any needed debugging information. And btw, is the signaling issue mentioned in http://wiki.parisc-linux.org/AD1889 fixed, yet?
Regards,
Julian
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Quoted 7 lines · Julian Stecklina
Tests done using the onboard AD1889 without any .asoundrc:
Quoted 1 line
mplayer -ao oss ...
...
AO: [oss] 44100Hz 2ch s16be (2 bytes per sample)
...
Works!
Expected
Quoted 3 lines
Quoted 1 line
mplayer -ao alsa ...
Doesn't work, noise. (Endian problem? Mplayer's fault?)
Expected
Quoted 3 lines
Quoted 1 line
mplayer -ao alsa:device=hw=0,0 ...
Works?!
Unexpected ;)
Quoted 6 lines
I then did some tests using mpg123:
An mpg123 using OSS produces only noise as well (seems to be the endian issue again). An ALSA mpg123 produces some "cracks" and "scritches" (my English is probably not good enough to properly describe this), unless I
cause some disk access, then it produces distorted (but sometimes
recognizable) sound...
Last time I tried, mpg123 was working for me. The noise issue is unfortunately a known one without a clear explanation yet, making hard (if not impossible) to fix...
Quoted 6 lines
uname -a:
Linux efficio 2.6.20.1-hppa #12 Mon May 7 17:40:45 CEST 2007 parisc PA8600 (PCX-W+) 9000/785/C3600 GNU/LinuxI am happy to supply any needed debugging information. And btw, is the signaling issue mentioned in http://wiki.parisc-linux.org/AD1889 fixed, yet?
If by 'signaling issue' you mean the random crash when doing ctrl-C, I don't know if it's fixed. The best way to check is to try ;)
Signature · 6 lines
Thibaut VARENE http://www.parisc-linux.org/~varenet/ _______________________________________________ parisc-linux mailing list [email protected] http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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Quoted 9 lines · Thibaut VARENE
Quoted 7 lines · Julian Stecklina
Tests done using the onboard AD1889 without any .asoundrc:
Quoted 1 line
mplayer -ao oss ...
...
AO: [oss] 44100Hz 2ch s16be (2 bytes per sample)
...
Works!
Quoted 7 lines
Expected
Quoted 3 lines
Quoted 1 line
mplayer -ao alsa ...
Doesn't work, noise. (Endian problem? Mplayer's fault?)
Expected
Why is that?
Quoted 2 lines
If by 'signaling issue' you mean the random crash when doing ctrl-C, I don't know if it's fixed. The best way to check is to try ;)
My kernel crashes. :-/
Regards,
Julian
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A message that is not in the archive (sent off-list or not yet received): [email protected]
Quoted 9 lines · Julian Stecklina
Quoted 5 lines · Thibaut VARENE
Quoted 3 lines
Quoted 1 line
mplayer -ao alsa ...
Doesn't work, noise. (Endian problem? Mplayer's fault?)
Expected
Why is that?
Because it never worked in the first place, and I asserted the driver wasn't at fault by testing it on another platform (namely PowerPC).
Quoted 4 lines
Quoted 2 lines
If by 'signaling issue' you mean the random crash when doing ctrl-C, I don't know if it's fixed. The best way to check is to try ;)
My kernel crashes. :-/
Well then, that's one more bug we still have... ;-P
Signature · 6 lines
Thibaut VARENE http://www.parisc-linux.org/~varenet/ _______________________________________________ parisc-linux mailing list [email protected] http://lists.parisc-linux.org/mailman/listinfo/parisc-linux