Open Bug 1671069 Opened 6 months ago Updated 6 months ago

Playback of certain Youtube videos freeze video (not audio) in full screen on Linux


(Core :: Graphics, defect)

Firefox 82





(Reporter: rsramkis, Unassigned)




User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:81.0) Gecko/20100101 Firefox/81.0

Steps to reproduce:

When trying to play certain video in 1080p60 on youtube the video playback will freeze in full screen mode but play correctly in regular/theater mode.

System Details:

Laptop: Thinkpad T450

Name Firefox
Version 81.0
Build ID 20200924173244
Distribution ID Manjaro
User Agent Mozilla/5.0 (X11; Linux x86_64; rv:81.0) Gecko/20100101 Firefox/81.0
OS Linux 5.4.67-1-MANJARO #1 SMP PREEMPT Wed Sep 23 14:20:18 UTC 2020

Linux Details:
Kernel: 5.4.67-1-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.0
parameters: BOOT_IMAGE=/boot/vmlinuz-5.4-x86_64
root=UUID=913cf2e6-0ad6-4897-ac14-92ec4ba23a9a rw
Desktop: GNOME 3.36.6 tk: GTK 3.24.23 wm: gnome-shell dm: GDM 3.36.3
Distro: Manjaro Linux

Video used to reproduce:


(1) Navigate to Test video (
(2) Set the resolution to 1080p60
(3) Choose Fullscreen mode in youtube.

Other steps to troubleshoot:

(1) You can then go back to windowed\Theater mode and the video will work properly.

(2) Checked in Vivaldi and full screen mode and the video

Vivaldi 3.3.2022.47 (Stable channel) (64-bit)
Revision 0ccf6997c3958ed4378f4fdea56f2dcf01757962
OS Linux
JavaScript V8
Flash (Disabled)
User Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.123 Safari/537.36
Command Line /usr/bin/vivaldi-stable --flag-switches-begin --flag-switches-end --save-page-as-mhtml
Executable Path /opt/vivaldi/vivaldi
Profile Path /home/rsruser/.config/vivaldi/Default

Actual results:

Once you enter full screen you will see the video stop rendering. You will hear the audio continue to play.

Expected results:

The video should play from beginning to end in full screen mode in HD.

Has STR: --- → yes
Component: Untriaged → Audio/Video: Playback
OS: Unspecified → Linux
Product: Firefox → Core
Hardware: Unspecified → x86_64

No luck reproducing this locally, but fullscreen-only issues tend to be graphics related, so I'm moving this to that component.

Component: Audio/Video: Playback → Graphics
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