[Since Jeff isn't the maintainer of the VIA audio driver I'm sending
this to linux-kernel]
Hi folks,
As the subject says, the audio is silenced a few minutes into playing
any DVD on my computer, using the via82cxxx_audio driver. My sound chip
is:
00:07.5 Multimedia audio controller: VIA Technologies, Inc. AC97 Audio Controller (rev 21)
Subsystem: Sigmatel Inc: Unknown device 7600
Flags: medium devsel, IRQ 9
I/O ports at dc00 [size=256]
I/O ports at e000 [size=4]
I/O ports at e400 [size=4]
Capabilities: [c0] Power Management version 2
It is 100% reproducable, and it usually happens around 4-6 minutes into
a DVD. After that has happened sounds in other programs will be silent
too. To get sound back I have to use a mixer app and just move the
master or pcm volume control one notch up and then back.
I have defined debugging in the VIA driver, and below is the output
written to /var/log/debug from the via driver when the sound silenced in
the movie. I have seen it happen once or twice while playing a mp3 too,
but with a DVD it's much easier to reproduce.
>From /var/log/debug:
Dec 28 19:40:35 sledgehammer kernel: via_dsp_write: ENTER, file=ce01c9a0, buffer=082cccf0, count=8192, ppos=0
Dec 28 19:40:35 sledgehammer kernel: via_chan_set_buffering: ENTER
Dec 28 19:40:35 sledgehammer kernel: via_chan_set_buffering: EXIT
Dec 28 19:40:35 sledgehammer kernel: via_chan_buffer_init: ENTER
Dec 28 19:40:35 sledgehammer kernel: via_chan_buffer_init: EXIT
Dec 28 19:40:35 sledgehammer kernel: via_dsp_do_write: Flushed block 6, sw_ptr now 7, n_frags now 1
Dec 28 19:40:35 sledgehammer kernel: via_dsp_do_write: regs==80 00 B7 0D100048 00000568 009A0000 00001000
Dec 28 19:40:35 sledgehammer kernel: via_dsp_do_write: Flushed block 7, sw_ptr now 8, n_frags now 0
Dec 28 19:40:35 sledgehammer kernel: via_dsp_do_write: regs==80 00 B7 0D100048 00000538 009A0000 00001000
Dec 28 19:40:35 sledgehammer kernel: via_dsp_write: EXIT, returning 8192
Dec 28 19:40:35 sledgehammer kernel: via_interrupt: intr, status32 == 0x00001001
Dec 28 19:40:35 sledgehammer kernel: via_intr_channel: PCM-OUT intr, status=0x01, hwptr=0xD100050, chan->hw_ptr=9
Dec 28 19:40:35 sledgehammer kernel: via_intr_channel: PCM-OUT intr, channel n_frags == 1
Dec 28 19:40:35 sledgehammer kernel: via_dsp_ioctl: DSP_GETODELAY
Dec 28 19:40:35 sledgehammer kernel: via_dsp_ioctl: GETODELAY EXIT, val = 123420 bytes
Dec 28 19:40:35 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:35 sledgehammer kernel: via_interrupt: intr, status32 == 0x00001001
Dec 28 19:40:35 sledgehammer kernel: via_intr_channel: PCM-OUT intr, status=0x01, hwptr=0xD100058, chan->hw_ptr=10
Dec 28 19:40:35 sledgehammer kernel: via_intr_channel: PCM-OUT intr, channel n_frags == 2
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETODELAY
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: GETODELAY EXIT, val = 119424 bytes
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETOSPACE
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl_space: EXIT, returning fragstotal=32, fragsize=4096, fragments=2, bytes=8192
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_interrupt: intr, status32 == 0x00001001
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, status=0x01, hwptr=0xD100060, chan->hw_ptr=11
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, channel n_frags == 3
Dec 28 19:40:36 sledgehammer kernel: via_dsp_write: ENTER, file=ce01c9a0, buffer=082cccf0, count=8192, ppos=0
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_chan_buffer_init: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_buffer_init: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: Flushed block 8, sw_ptr now 9, n_frags now 2
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: regs==80 00 B7 0D100060 00000E58 009A0000 00001000
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: Flushed block 9, sw_ptr now 10, n_frags now 1
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: regs==80 00 B7 0D100060 00000E28 009A0000 00001000
Dec 28 19:40:36 sledgehammer kernel: via_dsp_write: EXIT, returning 8192
Dec 28 19:40:36 sledgehammer kernel: via_interrupt: intr, status32 == 0x00001001
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, status=0x01, hwptr=0xD100068, chan->hw_ptr=12
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, channel n_frags == 2
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETODELAY
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: GETODELAY EXIT, val = 121732 bytes
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETODELAY
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: GETODELAY EXIT, val = 120280 bytes
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETOSPACE
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl_space: EXIT, returning fragstotal=32, fragsize=4096, fragments=2, bytes=8192
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_write: ENTER, file=ce01c9a0, buffer=082cccf0, count=8192, ppos=0
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_chan_buffer_init: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_buffer_init: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: Flushed block 10, sw_ptr now 11, n_frags now 1
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: regs==80 00 B7 0D100068 00000350 009A0000 00001000
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: Flushed block 11, sw_ptr now 12, n_frags now 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: regs==80 00 B7 0D100068 00000320 009A0000 00001000
Dec 28 19:40:36 sledgehammer kernel: via_dsp_write: EXIT, returning 8192
Dec 28 19:40:36 sledgehammer kernel: via_interrupt: intr, status32 == 0x00001001
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, status=0x01, hwptr=0xD100070, chan->hw_ptr=13
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, channel n_frags == 1
Dec 28 19:40:36 sledgehammer kernel: via_interrupt: intr, status32 == 0x00001001
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, status=0x01, hwptr=0xD100078, chan->hw_ptr=14
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, channel n_frags == 2
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETODELAY
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: GETODELAY EXIT, val = 121920 bytes
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETODELAY
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: GETODELAY EXIT, val = 120472 bytes
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETOSPACE
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl_space: EXIT, returning fragstotal=32, fragsize=4096, fragments=2, bytes=8192
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_write: ENTER, file=ce01c9a0, buffer=082cccf0, count=8192, ppos=0
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_chan_buffer_init: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_buffer_init: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: Flushed block 12, sw_ptr now 13, n_frags now 1
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: regs==80 00 B7 0D100078 00000268 009A0000 00001000
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: Flushed block 13, sw_ptr now 14, n_frags now 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: regs==80 00 B7 0D100078 0000023C 009A0000 00001000
Dec 28 19:40:36 sledgehammer kernel: via_dsp_write: EXIT, returning 8192
Dec 28 19:40:36 sledgehammer kernel: via_interrupt: intr, status32 == 0x00001001
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, status=0x01, hwptr=0xD100080, chan->hw_ptr=15
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, channel n_frags == 1
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETODELAY
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: GETODELAY EXIT, val = 122920 bytes
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_interrupt: intr, status32 == 0x00001001
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, status=0x01, hwptr=0xD100088, chan->hw_ptr=16
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, channel n_frags == 2
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETODELAY
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: GETODELAY EXIT, val = 121440 bytes
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETOSPACE
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl_space: EXIT, returning fragstotal=32, fragsize=4096, fragments=2, bytes=8192
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_write: ENTER, file=ce01c9a0, buffer=082cccf0, count=8192, ppos=0
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_chan_buffer_init: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_buffer_init: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: Flushed block 14, sw_ptr now 15, n_frags now 1
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: regs==80 00 B7 0D100088 000003EC 009A0000 00001000
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: Flushed block 15, sw_ptr now 16, n_frags now 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: regs==80 00 B7 0D100088 000003B8 009A0000 00001000
Dec 28 19:40:36 sledgehammer kernel: via_dsp_write: EXIT, returning 8192
Dec 28 19:40:36 sledgehammer kernel: via_interrupt: intr, status32 == 0x00001001
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, status=0x01, hwptr=0xD100090, chan->hw_ptr=17
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, channel n_frags == 1
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETODELAY
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: GETODELAY EXIT, val = 123308 bytes
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_interrupt: intr, status32 == 0x00001001
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, status=0x01, hwptr=0xD100098, chan->hw_ptr=18
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, channel n_frags == 2
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETODELAY
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: GETODELAY EXIT, val = 121780 bytes
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETOSPACE
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl_space: EXIT, returning fragstotal=32, fragsize=4096, fragments=2, bytes=8192
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_write: ENTER, file=ce01c9a0, buffer=082cccf0, count=8192, ppos=0
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_chan_buffer_init: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_buffer_init: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: Flushed block 16, sw_ptr now 17, n_frags now 1
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: regs==80 00 B7 0D100098 00000958 009A0000 00001000
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: Flushed block 17, sw_ptr now 18, n_frags now 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: regs==80 00 B7 0D100098 0000092C 009A0000 00001000
Dec 28 19:40:36 sledgehammer kernel: via_dsp_write: EXIT, returning 8192
Dec 28 19:40:36 sledgehammer kernel: via_interrupt: intr, status32 == 0x00001001
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, status=0x01, hwptr=0xD1000A0, chan->hw_ptr=19
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, channel n_frags == 1
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETODELAY
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: GETODELAY EXIT, val = 123744 bytes
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_interrupt: intr, status32 == 0x00001001
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, status=0x01, hwptr=0xD1000A8, chan->hw_ptr=20
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, channel n_frags == 2
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETODELAY
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: GETODELAY EXIT, val = 122212 bytes
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETOSPACE
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl_space: EXIT, returning fragstotal=32, fragsize=4096, fragments=2, bytes=8192
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_write: ENTER, file=ce01c9a0, buffer=082cccf0, count=8192, ppos=0
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_set_buffering: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_chan_buffer_init: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_buffer_init: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: Flushed block 18, sw_ptr now 19, n_frags now 1
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: regs==80 00 B7 0D1000A8 00000A18 009A0000 00001000
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: Flushed block 19, sw_ptr now 20, n_frags now 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_do_write: regs==80 00 B7 0D1000A8 000009E8 009A0000 00001000
Dec 28 19:40:36 sledgehammer kernel: via_dsp_write: EXIT, returning 8192
Dec 28 19:40:36 sledgehammer kernel: via_interrupt: intr, status32 == 0x00001001
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, status=0x01, hwptr=0xD1000B0, chan->hw_ptr=21
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, channel n_frags == 1
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETODELAY
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: GETODELAY EXIT, val = 125032 bytes
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_interrupt: intr, status32 == 0x00001001
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, status=0x01, hwptr=0xD1000B8, chan->hw_ptr=22
Dec 28 19:40:36 sledgehammer kernel: via_intr_channel: PCM-OUT intr, channel n_frags == 2
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_GETODELAY
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: GETODELAY EXIT, val = 120956 bytes
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: DSP_RESET
Dec 28 19:40:36 sledgehammer kernel: via_chan_clear: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_buffer_free: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_ac97_wait_idle: ENTER/EXIT
Dec 28 19:40:36 sledgehammer kernel: via_chan_buffer_free: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_chan_clear: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_dsp_ioctl: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_release: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_dsp_drain_playback: ENTER, nonblock = 0
Dec 28 19:40:36 sledgehammer kernel: via_dsp_drain_playback: EXIT, returning 0
Dec 28 19:40:36 sledgehammer kernel: via_chan_free: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_chan_free: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_chan_buffer_free: ENTER
Dec 28 19:40:36 sledgehammer kernel: via_ac97_wait_idle: ENTER/EXIT
Dec 28 19:40:36 sledgehammer kernel: via_chan_buffer_free: EXIT
Dec 28 19:40:36 sledgehammer kernel: via_dsp_release: EXIT, returning 0
Let me know if more data from the log is needed. I have attached some
additional system information with this mail.
--
Andr? Dahlqvist <[email protected]>
> 00:07.5 Multimedia audio controller: VIA Technologies, Inc. AC97 Audio Controller (rev 21)
> Subsystem: Sigmatel Inc: Unknown device 7600
> Flags: medium devsel, IRQ 9
> I/O ports at dc00 [size=256]
> I/O ports at e000 [size=4]
> I/O ports at e400 [size=4]
> Capabilities: [c0] Power Management version 2
>
> It is 100% reproducable, and it usually happens around 4-6 minutes into
> a DVD. After that has happened sounds in other programs will be silent
Random guess of the week. Disable ACPI support and turn off APM in the BIOS
then repeat the test. If that stops it then it sounds like some kind of
power management is turning off the codec.
Let us know what it shows
Alan
Alan Cox <[email protected]> wrote:
> Random guess of the week. Disable ACPI support and turn off APM in the BIOS
> then repeat the test. If that stops it then it sounds like some kind of
> power management is turning off the codec.
>
> Let us know what it shows
Sadly that didn't help. ACPI was not enabled, but APM was. I disabled
Power Management altogether in the kernel, and set all power management
features in the bios to disabled, but still the same thing happens. I'm
starting to think that someting has gone wrong with the DVD-drive,
especially since the same thing happens in that other OS.
Thanks for the tip though Alan,
--
Andr? Dahlqvist <[email protected]>
> features in the bios to disabled, but still the same thing happens. I'm
> starting to think that someting has gone wrong with the DVD-drive,
> especially since the same thing happens in that other OS.
It doesn't sound like the DVD drive. The fact that poking the ac97 side of
things wakes it up is strange. When you are playing DVD movies the actual
audio decode is coming off the processor.
Alan