[mythtv-users] "something is currently using: /dev/dsp"
Simon Starr
lists at ruffest.org
Fri Sep 19 14:34:15 EDT 2003
Hi,
Whenever I try and watch live TV, mythbackend seg faults while mythfrontend
quits with the following error:
Opening OSS audio device '/dev/dsp'.
ERROR: something is currently using: /dev/dsp
fuser -v /dev/dsp before, during and after running mythback/frontend comes
back empty and I'm running twm with all traces of esd and arts removed.
The mythtv user has full permissions on /dev/dsp etc.
This has only started happening since I installed ALSA - with the OSS driver I
was using before I could watch live tv but the sound was out of sync so I
installed ALSA as per the instructions in the HOWTO.
xawtv works fine - I have a cable from tv card output to soundcard line in so
if i unmute the line in with alsamixer I can hear the audio. If I mute it
then run aplay /dev/dsp I can hear it a couple of seconds out of sync.
xmms works fine with the ALSA 1.2.8 output plugin.
I'm running Debian unstable on kernel 2.4.22 with a WinTV capture card and
ymfpci based sound card.
root at saunton:/home/simon# lspci
00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 03)
00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP]
00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev
40)
00:07.1 IDE interface: VIA Technologies, Inc. VT82C586/B/686A/B PIPC Bus
Master IDE (rev 06)
00:07.2 USB Controller: VIA Technologies, Inc. USB (rev 16)
00:07.3 USB Controller: VIA Technologies, Inc. USB (rev 16)
00:07.4 Bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 40)
00:09.0 Multimedia audio controller: Yamaha Corporation YMF-744B [DS-1S Audio
Controller] (rev 02)
00:0b.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 08)
00:0f.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture
(rev 02)
00:0f.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev
02)
01:00.0 VGA compatible controller: nVidia Corporation NV15 [GeForce2 GTS/Pro]
(rev a4)
root at saunton:/home/simon# lsmod
Module Size Used by Tainted: P
snd-pcm-oss 38308 0 (unused)
snd-mixer-oss 13304 0 [snd-pcm-oss]
nvidia 1629600 11
snd-ymfpci 41792 1
snd-pcm 57828 0 [snd-pcm-oss snd-ymfpci]
snd-page-alloc 6164 0 [snd-ymfpci snd-pcm]
snd-opl3-lib 6564 0 [snd-ymfpci]
snd-hwdep 5088 0 [snd-opl3-lib]
snd-timer 14212 0 [snd-pcm snd-opl3-lib]
snd-mpu401-uart 3312 0 [snd-ymfpci]
snd-rawmidi 13440 0 [snd-mpu401-uart]
snd-seq-device 4208 0 [snd-opl3-lib snd-rawmidi]
snd-ac97-codec 39576 0 [snd-ymfpci]
snd 28836 1 [snd-pcm-oss snd-mixer-oss snd-ymfpci
snd-pcm snd-opl3-lib snd-hwdep snd-timer snd-mpu401-uart snd-rawmidi
snd-seq-device snd-ac97-codec]
I've spent about 10 hours in the last couple of days searching google and the
mailing list archives to try and find a solution so any help would be very
welcome as this is in danger of driving me mad :/
Cheers
Simon
--
Simon Starr
www.ruffest.org
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