Viewing youtube video has video show but soundless

[ccy]

Hi,

I install Fedora Core 9 with default setting running GNOME GUI. At first, the sounds doesn't work at all. All system sounds doesn't work too.

I type "dmesg |grep -i sound" and get the following messages:

ALSA sound/pci/hda/hda_intel.c:1810: chipset global capabilities = 0x4401
ALSA sound/pci/hda/hda_intel.c:749: codec_mask = 0x4
ALSA sound/pci/hda/patch_sigmatel.c:3564: hda_codec: Unknown model forSTAC927x, using BIOS defaults
ALSA sound/pci/hda/patch_sigmatel.c:1685: hda_codec: pin nid 0a bios pin config 0221401f
ALSA sound/pci/hda/patch_sigmatel.c:1685: hda_codec: pin nid 0b bios pin config 02a19040
ALSA sound/pci/hda/patch_sigmatel.c:1685: hda_codec: pin nid 0c bios pin config 400000fd
ALSA sound/pci/hda/patch_sigmatel.c:1685: hda_codec: pin nid 0d bios pin config 01114010
ALSA sound/pci/hda/patch_sigmatel.c:1685: hda_codec: pin nid 0e bios pin config 01119011
ALSA sound/pci/hda/patch_sigmatel.c:1685: hda_codec: pin nid 0f bios pin config 01113012
ALSA sound/pci/hda/patch_sigmatel.c:1685: hda_codec: pin nid 10 bios pin config 400000fc
ALSA sound/pci/hda/patch_sigmatel.c:1685: hda_codec: pin nid 11 bios pin config 400000fb
ALSA sound/pci/hda/patch_sigmatel.c:1685: hda_codec: pin nid 12 bios pin config 400000fa
ALSA sound/pci/hda/patch_sigmatel.c:1685: hda_codec: pin nid 13 bios pin config 50a001f0
ALSA sound/pci/hda/patch_sigmatel.c:1685: hda_codec: pin nid 14 bios pin config 50a001f0
ALSA sound/pci/hda/patch_sigmatel.c:1685: hda_codec: pin nid 21 bios pin config 400000f9
ALSA sound/pci/hda/patch_sigmatel.c:1685: hda_codec: pin nid 22 bios pin config 400000ff
ALSA sound/pci/hda/patch_sigmatel.c:1685: hda_codec: pin nid 23 bios pin config 00000000
ALSA sound/pci/hda/hda_codec.c:2857: autoconfig: line_outs=3 (0xd/0xf/0xe/0x0/0x0)
ALSA sound/pci/hda/hda_codec.c:2861: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
ALSA sound/pci/hda/hda_codec.c:2865: hp_outs=1 (0xa/0x0/0x0/0x0/0x0)
ALSA sound/pci/hda/hda_codec.c:2866: mono: mono_out=0x0
ALSA sound/pci/hda/hda_codec.c:2874: inputs: mic=0xb, fmic=0x0, line=0x0, fline=0x0, cd=0x0, aux=0x0
ALSA sound/pci/hda/patch_sigmatel.c:2080: stac92xx_add_dyn_out_pins: total dac count=4
ALSA sound/pci/hda/patch_sigmatel.c:2202: dac_nids=3 (0x2/0x5/0x4/0x0/0x0)
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Side Playback Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Headphone Playback Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Headphone Playback Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Speaker Playback Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave External Speaker Playback Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Speaker2 Playback Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Side Playback Switch, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Headphone Playback Switch, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Headphone Playback Switch, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Speaker Playback Switch, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave External Speaker Playback Switch, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Speaker2 Playback Switch, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave IEC958 Playback Switch, skipped

I am not sure if my built-in sound card has problems with that but it works on my windows vista.

I then simply install "alsa-oss.i386" package and the sound work. All system sounds work now.

However, if I go to youtube to play some video but those video are all silent. I am sure the sound volume has switch on. Any ideas? Please advice.

Thank you.

[trigpoint]

yum install libflashsupport