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Firefox doesn't play sound in Ubuntu 18.04.1 LTS after disconnection of HDMI.

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System: Ubuntu 18.04.1 LTS Firefox Quantum 62.0 (64 bity)

PC was connected to the TV via HDMI. After disconnection Firefox stopped playing sound. Before connecting it was working perfectly.

Other browser and apps are working fine.

System: Ubuntu 18.04.1 LTS Firefox Quantum 62.0 (64 bity) PC was connected to the TV via HDMI. After disconnection Firefox stopped playing sound. Before connecting it was working perfectly. Other browser and apps are working fine.

Additional System Details

Application

  • User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36 OPR/55.0.2994.44

More Information

Shadow110 1072 solutions 14836 answers

VIDEO AUDIO

SAFE MODE

In Firefox Safe mode these changes are effective:

  • all extensions are disabled (about:addons)
  • default theme is used (no persona)
  • userChrome.css and userContent.css are ignored (chrome folder)
  • default toolbar layout is used (file: localstore-safe.rdf)
  • Javascript JIT compilers are disabled (prefs: javascript.options.*jit)
  • hardware acceleration is disabled (Options > Performance > Uncheck to view)
  • plugins are not affected
  • preferences are not affected

TEST''''is issue still there ?

VIDEO AUDIO *https://support.google.com/youtube/topic/3014746 - Youtube *https://www.youtube.com/html5/ - Can you support HTML5 *https://support.mozilla.org/en-US/kb/fix-common-audio-and-video-issues *https://support.mozilla.org/en-US/kb/html5-audio-and-video-firefox SAFE MODE *https://support.mozilla.org/kb/Safe+Mode *https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes In Firefox Safe mode these changes are effective: *all extensions are disabled (about:addons) *default theme is used (no persona) *userChrome.css and userContent.css are ignored (chrome folder) *default toolbar layout is used (file: localstore-safe.rdf) *Javascript JIT compilers are disabled (prefs: javascript.options.*jit) *hardware acceleration is disabled (Options > Performance > Uncheck to view) *plugins are not affected *preferences are not affected TEST'''''''''is issue still there ?
James
  • Top 25 Contributor
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1602 solutions 11345 answers

scorpio_90 said

System: Ubuntu 18.04.1 LTS Firefox Quantum 62.0 (64 bity) PC was connected to the TV via HDMI. After disconnection Firefox stopped playing sound. Before connecting it was working perfectly. Other browser and apps are working fine.

Was Firefox still running when you disconnected HDMI connection? if so is sound fine after restarting Firefox?

Did you make sure sound for Firefox was not muted?

''scorpio_90 [[#question-1233176|said]]'' <blockquote> System: Ubuntu 18.04.1 LTS Firefox Quantum 62.0 (64 bity) PC was connected to the TV via HDMI. After disconnection Firefox stopped playing sound. Before connecting it was working perfectly. Other browser and apps are working fine. </blockquote> Was Firefox still running when you disconnected HDMI connection? if so is sound fine after restarting Firefox? Did you make sure sound for Firefox was not muted?

Question owner

@James Firefox was still running when HDMI was disconnected. After: restart, reboot, reinstall it's still not working. Of course sound is not muted :) I've tried on several services as YouTube, Netflix etc. Video is working fine but not audio.

@Pkshadow Firefox is supporting HTML5 and all other stuff. Nothing helps.

As I said it was working for some time. Then I want to watch netflix on TV and it happened.

@James Firefox was still running when HDMI was disconnected. After: restart, reboot, reinstall it's still not working. Of course sound is not muted :) I've tried on several services as YouTube, Netflix etc. Video is working fine but not audio. @Pkshadow Firefox is supporting HTML5 and all other stuff. Nothing helps. As I said it was working for some time. Then I want to watch netflix on TV and it happened.