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Thread: Inconsistent sound


this kubuntu 9.10.

of last week, haven't been getting sound in program. yet randomly decides work in every program after reboot. sticks through suspend/resume, doesn't. when sound dies, rebooting doesn't help. hear kde startup sound, no further sound after that. i've yet detect patterns.

i've tried xine , gstreamer phonon backends, makes no difference.

alsamixer showed muted , fixing helped work 1 time, it's failing again while alsamixer shows it's @ full volume.

"hda intel mid (alc272 analog)" 1 of output devices seems work, though stated doesn't. pulseaudio , esound options never do.

checks:
code:
pgk@pgk-laptop:~$ aplay -l **** list of playback hardware devices **** card 0: mid [hda intel mid], device 0: alc272 analog [alc272 analog]   subdevices: 0/1   subdevice #0: subdevice #0  pgk@pgk-laptop:~$ sudo lshw                                          pgk-laptop                                                    description: computer                                                product: ao751h                                                      vendor: acer                                                         version: not applicable                                              serial: lus850b239928161bc2500                                       width: 32 bits                                                       capabilities: smbios-2.5 dmi-2.5 smp-1.4 smp                         configuration: administrator_password=disabled boot=oem-specific cpus=1 frontpanel_password=unknown keyboard_password=unknown power-on_password=disabled uuid=40fa01d2-5935-de11-98f8-00238bf08aa6                                             *-core                                                                                description: motherboard                                                         product: jv11-ml                                                                 vendor: acer                                                                     physical id: 0                                                                   version: not applicable                                                          serial: 925jvjmbqtf08e62                                                       *-firmware                                                                            description: bios                                                                vendor: acer                                                                     physical id: 0                                                                   version: v0.3206 (06/23/2009)                                                    size: 100kib                                                                     capacity: 960kib                                                                 capabilities: isa pci pcmcia pnp upgrade shadowing escd cdboot acpi usb agp biosbootspecification                                                           *-cpu                                                                                 description: cpu                                                                 product: intel(r) atom(tm) cpu z520   @ 1.33ghz                                  vendor: intel corp.                                                              physical id: 4                                                                   bus info: cpu@0                                                                  version: 6.12.2                                                                  serial: 0001-06c2-0000-0000-0000-0000                                            slot: u3e1                                                                       size: 1333mhz                                                                    capacity: 1333mhz                                                                width: 32 bits                                                                   capabilities: boot fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon pebs bts pni dtes64 monitor ds_cpl vmx est tm2 ssse3 xtpr pdcm movbe lahf_lm tpr_shadow vnmi flexpriority cpufreq                                 configuration: id=0                                                            *-cache:0                                                                             description: l1 cache                                                            physical id: 5                                                                   slot: l1 cache                                                                   size: 64kib                                                                      capacity: 64kib                                                                  capabilities: asynchronous internal write-back                              *-cache:1                                                                             description: l2 cache                                                            physical id: 6                                                                   slot: l2 cache                                                                   size: 512kib                                                                     capacity: 512kib                                                                 capabilities: burst external write-back                                     *-logicalcpu:0                                                                        description: logical cpu                                                         physical id: 0.1                                                                 width: 32 bits                                                                   capabilities: logical                                                       *-logicalcpu:1                                                                        description: logical cpu                                                         physical id: 0.2                                                                 width: 32 bits                                                                   capabilities: logical                                                    *-memory                                                                              description: system memory                                                       physical id: 13                                                                  slot: system board or motherboard                                                size: 1gib                                                                       capacity: 1gib                                                                 *-bank                                                                                description: sodimm ddr2 synchronous                                             physical id: 0                                                                   slot: dimm0 j6d1                                                                 size: 1gib                                                                       width: 32 bits                                                           *-pci                                                                                 description: host bridge                                                         product: system controller hub (sch poulsbo)                                     vendor: intel corporation                                                        physical id: 100                                                                 bus info: pci@0000:00:00.0                                                       version: 07                                                                      width: 32 bits                                                                   clock: 33mhz                                                                   *-display                                                                             description: vga compatible controller                                           product: system controller hub (sch poulsbo) graphics controller                 vendor: intel corporation                                                        physical id: 2                                                                   bus info: pci@0000:00:02.0                                                       version: 07                                                                      width: 32 bits                                                                   clock: 33mhz                                                                     capabilities: pm msi bus_master cap_list rom                                     configuration: driver=psb latency=0                                              resources: irq:16 memory:b0080000-b00fffff ioport:1800(size=8) memory:c0000000-cfffffff memory:b0000000-b003ffff                                            *-multimedia                                                                          description: audio device                                                        product: system controller hub (sch poulsbo) hd audio controller                 vendor: intel corporation                                                        physical id: 1b                                                                  bus info: pci@0000:00:1b.0                                                       version: 07                                                                      width: 64 bits                                                                   clock: 33mhz                                                                     capabilities: pm pciexpress bus_master cap_list                                  configuration: driver=hda intel latency=0                                        resources: irq:22 memory:b0050000-b0053fff                                  *-pci:0                                                                               description: pci bridge                                                          product: system controller hub (sch poulsbo) pci express port 1                  vendor: intel corporation                                                        physical id: 1c                                                                  bus info: pci@0000:00:1c.0                                                       version: 07                                                                      width: 32 bits                                                                   clock: 33mhz                                                                     capabilities: pci pciexpress pm bus_master cap_list                              configuration: driver=pcieport-driver                                            resources: irq:17 ioport:2000(size=4096) memory:40000000-400fffff memory:d0100000-d01fffff(prefetchable)                                                       *-network                                                                             description: ethernet interface                                                  product: rtl8101e/rtl8102e pci express fast ethernet controller                  vendor: realtek semiconductor co., ltd.                                          physical id: 0                                                                   bus info: pci@0000:02:00.0                                                       logical name: eth0                                                               version: 02                                                                      serial: 00:23:8b:f0:8a:a6                                                        size: 10mb/s                                                                     capacity: 100mb/s                                                                width: 64 bits                                                                   clock: 33mhz                                                                     capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation                            configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3lk-napi duplex=half latency=0 link=no multicast=yes port=mii speed=10mb/s                                                                                          resources: irq:24 ioport:2000(size=256) memory:d0110000-d0110fff(prefetchable) memory:d0100000-d010ffff(prefetchable) memory:d0120000-d012ffff(prefetchable)                                                                             *-pci:1                                                                               description: pci bridge                                                          product: system controller hub (sch poulsbo) pci express port 2                  vendor: intel corporation                                                        physical id: 1c.1                                                                bus info: pci@0000:00:1c.1                                                       version: 07                                                                      width: 32 bits                                                                   clock: 33mhz                                                                     capabilities: pci pciexpress pm bus_master cap_list                              configuration: driver=pcieport-driver                                            resources: irq:16 memory:d0000000-d00fffff                                     *-network                                                                             description: wireless interface                                                  product: ar5001 wireless network adapter                                         vendor: atheros communications inc.                                              physical id: 0                                                                   bus info: pci@0000:03:00.0                                                       logical name: wmaster0                                                           version: 01                                                                      serial: 00:26:5e:1f:af:0f                                                        width: 64 bits                                                                   clock: 33mhz                                                                     capabilities: pm msi pciexpress msix bus_master cap_list logical ethernet physical wireless                                                                      configuration: broadcast=yes driver=ath5k ip=172.16.1.33 latency=0 multicast=yes wireless=ieee 802.11bg                                                          resources: irq:17 memory:d0000000-d000ffff                               *-usb:0                                                                               description: usb controller                                                      product: system controller hub (sch poulsbo) usb uhci #1                         vendor: intel corporation                                                        physical id: 1d                                                                  bus info: pci@0000:00:1d.0                                                       version: 07                                                                      width: 32 bits                                                                   clock: 33mhz                                                                     capabilities: bus_master                                                         configuration: driver=uhci_hcd latency=0                                         resources: irq:23 ioport:1820(size=32)                                      *-usb:1                                                                               description: usb controller                                                      product: system controller hub (sch poulsbo) usb uhci #2                         vendor: intel corporation                                                        physical id: 1d.1                                                                bus info: pci@0000:00:1d.1                                                       version: 07                                                                      width: 32 bits                                                                   clock: 33mhz                                                                     capabilities: bus_master                                                         configuration: driver=uhci_hcd latency=0                                         resources: irq:19 ioport:1840(size=32)                                      *-usb:2                                                                               description: usb controller                                                      product: system controller hub (sch poulsbo) usb uhci #3                         vendor: intel corporation                                                        physical id: 1d.2                                                                bus info: pci@0000:00:1d.2                                                       version: 07                                                                      width: 32 bits                                                                   clock: 33mhz                                                                     capabilities: bus_master                                                         configuration: driver=uhci_hcd latency=0                                         resources: irq:18 ioport:1860(size=32)                                      *-usb:3                                                                               description: usb controller                                                      product: system controller hub (sch poulsbo) usb ehci #1                         vendor: intel corporation                                                        physical id: 1d.7                                                                bus info: pci@0000:00:1d.7                                                       version: 07                                                                      width: 32 bits                                                                   clock: 33mhz                                                                     capabilities: pm debug bus_master cap_list                                       configuration: driver=ehci_hcd latency=0                                         resources: irq:21 memory:b0054000-b00543ff                                  *-isa                                                                                 description: isa bridge                                                          product: system controller hub (sch poulsbo) lpc bridge                          vendor: intel corporation                                                        physical id: 1f                                                                  bus info: pci@0000:00:1f.0                                                       version: 07                                                                      width: 32 bits                                                                   clock: 33mhz                                                                     capabilities: isa                                                                configuration: driver=isch_smbus latency=0                                       resources: irq:0                                                            *-ide                                                                                 description: ide interface                                                       product: system controller hub (sch poulsbo) ide controller                      vendor: intel corporation                                                        physical id: 1f.1                                                                bus info: pci@0000:00:1f.1                                                       logical name: scsi0                                                              version: 07                                                                      width: 32 bits                                                                   clock: 33mhz                                                                     capabilities: ide bus_master emulated                                            configuration: driver=pata_sch latency=0                                         resources: irq:0 ioport:1f0(size=8) ioport:3f6 ioport:170(size=8) ioport:376 ioport:1810(size=16)                                                              *-disk                                                                                description: ata disk                                                            product: toshiba mk1655gs                                                        vendor: toshiba                                                                  physical id: 0.0.0                                                               bus info: scsi@0:0.0.0                                                           logical name: /dev/sda                                                           version: fg01                                                                    serial: 7921f4bxs                                                                size: 149gib (160gb)                                                             capabilities: partitioned partitioned:dos                                        configuration: ansiversion=5 signature=1647b2fc                                *-volume:0                                                                            description: windows ntfs volume                                                 physical id: 1                                                                   bus info: scsi@0:0.0.0,1                                                         logical name: /dev/sda1                                                          version: 3.1                                                                     serial: 7448-3978                                                                size: 8190mib                                                                    capacity: 8gib                                                                   capabilities: primary bootable boot ntfs initialized                             configuration: clustersize=4096 created=2009-07-10 05:52:27 filesystem=ntfs label=pqservice state=clean                                                     *-volume:1                                                                            description: windows ntfs volume                                                 physical id: 2                                                                   bus info: scsi@0:0.0.0,2                                                         logical name: /dev/sda2                                                          version: 3.1                                                                     serial: d602e119-a040-5248-b0cf-e88ad05419e9                                     size: 25gib                                                                      capacity: 25gib                                                                  capabilities: primary ntfs initialized                                           configuration: clustersize=4096 created=2009-07-10 06:11:19 filesystem=ntfs label=acer modified_by_chkdsk=true mounted_on_nt4=true resize_log_file=true state=dirty upgrade_on_mount=true                                                   *-volume:2                                                                            description: extended partition                                                  physical id: 3                                                                   bus info: scsi@0:0.0.0,3                                                         logical name: /dev/sda3                                                          size: 115gib                                                                     capacity: 115gib                                                                 capabilities: primary extended partitioned partitioned:extended                                                                                                *-logicalvolume:0                                                                     description: linux filesystem partition                                          physical id: 5                       logical name: /dev/sda5                       capacity: 74gib                  *-logicalvolume:1                       description: linux swap / solaris partition                       physical id: 6                       logical name: /dev/sda6                       capacity: 1906mib                       capabilities: nofs                  *-logicalvolume:2                       description: linux filesystem partition                       physical id: 7                       logical name: /dev/sda7                       logical name: /                       capacity: 39gib                       configuration: mount.fstype=ext4 mount.options=rw,relatime,errors=remount-ro,barrier=1,data=ordered state=mounted   *-remoteaccess unclaimed        vendor: intel        physical id: 1        capabilities: inbound
i'm running psb 2d (not 3d) video driver, if that's relevant.

maybe error realplayer gives on trying play file gives idea:
code:
opening alsa pcm device default /usr/bin/realplayer: line 57:  2877 floating point exception$helix_libs/realplay.bin "$@"
it doesn't crash @ times when sound works.


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