Ubuntu 16.04: Sound and video problems - Ask Ubuntu


i updated ubuntu 16.04 while ago , haven't gotten sound work ever since. oddly enough, there's sound when start computer, none afterwards. there no sound output devices detected:

(click image)

in addition, @ point, volume indicator disappeared task bar, , there's no check box in sound settings put back.

when run aplay -i, nothing appears. @ 1 point, tried suggested in this article on unixmen.com, including unmuting in alsamixer, reinstalling alsa , pulseaudio, , updating sound drivers (although i'm really, worried might have made problem worse), , got sound work while, when restarted later, stopped working again.

how can fix this?

please let me know if there's other information can provide - problem has been plaguing me past few months.

  • the command display soundcards aplay -l not aplay -i
  • as there sound @ startup , try disable speech-dispatcher running
    sudo update-rc.d -f speech-dispatcher remove
    , reboot
  • if no luck, disable pulseaudio testing, can check if underlaying alsa driver works fine. run 3 commands::
    mkdir ~/.pulse
    echo autospawn=no > ~/.pulse/client.conf
    pulseaudio -k
    audio softwares use alsa: test sound (check volumes , mute using alsamixer or install "alsamixergui ").
    if ok, pulseaudio broken : reset with
    mv ~/.config/pulse ~/.config/pulseold
    echo autospawn=yes > ~/.pulse/client.conf
    pulseaudio
    launch pulseaudio new configuration ,test again.

Comments

Post a Comment

Popular posts from this blog

download - Firefox cannot save files (most of the time), how to solve? - Super User

this not full duplicate of this question or this question , though base question same. however, questions have no answers. for on half year have problems downloading files firefox. when click on download link, download dialog opened asking me do, save or open it. immediately, there error/warning pop-up (twice, can see 1 @ first) ok button. looks this message : "c:\users\%user%\appdata\local\temp\wbbdv9k8.zip.part not saved because source file not read. try again later or contact server administrator." replace '%user%' name of user trying download. after closing pop-up, download dialog disappears , have minimize firefox , open again, see other pop-up. downloading exact same file internet explorer work, not desired. i tried solutions here . tried solutions here . tried disabling extensions. tried fixing permissions on temp folder. tried making files , folder in profile directory non-readonly. tried running firefox administrator. tried
Read more

windows - "-2146893807 NTE_NOT_FOUND" when repair certificate store - Super User

i try repair certificate store in windows 10 doing c:\windows\system32>certutil -store -user ‎330000019dba8d5dddb98062a900000000019d "personal" certutil: -store command failed: 0x80090011 (-2146893807 nte_not_found) certutil: object not found. i have double check mmc, certificate details serial number of certificate. still fail repair certificate store. can please help? i getting same error when trying export pfx. turns out had export c:\cert.pfx instead of cert.pfx (it trying export file cert store ( cert:\localmachine\my ).
Read more

sql server - "Configuration file does not exist", Event ID 274 - Super User

sql server 2014 standard in server 2012 r2 i installed sql server 2014 in drive d: i following error: microsoft ssis service: registry setting specifying configuration file not exist. attempting load default config file. simply add c:\program files\microsoft sql server\1?0\dts\binn\msdtssrvr.ini.xml to default reg_sz value in: hkey_local_machine\software\microsoft\microsoft sql server\1?0\ssis\serviceconfigfile where ? replaced matching sql server version
Read more