Bug 1307136 - Audio & Video lag when HDMI is plugged in to a booted system with a recent Intel CPU
Audio & Video lag when HDMI is plugged in to a booted system with a recent In...
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
x86_64 Linux
unspecified Severity high
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Assigned To: Kernel Maintainer List
Fedora Extras Quality Assurance
Depends On:
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Reported: 2016-02-12 14:10 EST by Matt
Modified: 2016-03-14 16:52 EDT (History)
8 users (show)

See Also:
Fixed In Version: 4.4.4
Doc Type: Bug Fix
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Last Closed: 2016-03-14 16:52:07 EDT
Type: Bug
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RHEL 7.3 requirements from Atomic Host:
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Description Matt 2016-02-12 14:10:26 EST
Description of problem:

When a HDMI lead is plugged into my laptop to use the TV for audio and video playback, the audio and video lags. If the laptop is rebooted with the HDMI cable plugged in all is fine.

How reproducible:

Other mentions of this found on other Fedora related websites.

Steps to Reproduce:
1. Laptop with Intel i3/5/7-5XXX i3/5/7 6XXX series (no separate GFX card)
2. Kernel 4.3.5-300.FC23.x86_64
3. Boot system then plug in HDMI lead and switch audio to HDMI output.

Actual results:

Audio & Video playback at reduced speed, independent of player, even the "test speakers" voice in system settings is lagged.

Expected results:

Normal sound output through TV.

Additional info:

This didn't happen around a month or two ago, I was directed to report this via the IRC channel as kernel is most likely culprit apparently.
Comment 1 Matt 2016-03-14 14:39:46 EDT
This appears to be fixed with kernel 4.4.4*

Thanks to whoever did it!
Comment 2 Laura Abbott 2016-03-14 16:52:07 EDT
Thanks for confirming

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