[Desktop] Youtube playback lag on fullscreen mode

[GitGuuuud]

Description

Lag/Slow playback on full screen

Steps to Reproduce

1. Enable "Use hardware acceleration when available" on Browser Setting
2. Play any 1080p/4K on youtube
3. Press Full Screen mode
4. After YouTube player interface gone, video start to lag

Actual result:

Playback lagging

Expected result:

Smooth playback

Reproduces how often:

Easily reproduced

Brave version (brave://version info)

Brave	1.12.91 Chromium: 84.0.4147.89 (Official Build) beta (64-bit)
Revision	19abfe7bcba9318a0b2a6bc6634a67fc834aa592-refs/branch-heads/4147@{#852}
OS	Windows 10 OS Version 1909 (Build 18363.900)

Version/Channel Information:

• Can you reproduce this issue with the current release? Yes
• Can you reproduce this issue with the beta channel? Yes
• Can you reproduce this issue with the dev channel? Yes
• Can you reproduce this issue with the nightly channel? Yes

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields? No
• Does the issue resolve itself when disabling Brave Rewards? No
• Is the issue reproducible on the latest version of Chrome? No

[rebron]

@GitGuuuud Can you try again with 1.13.82 our latest release? Smoother playback if you disable hardware acceleration?

[rebron]

@GitGuuuud Also, can you point to a specific video where you're seeing the issue?

[GitGuuuud]

https://www.youtube.com/watch?v=LXb3EKWsInQ

Playback become lag when play any 4K, when GSync is on (1.13.82).

[rebron]

@GitGuuuud If you don't mind, would you be able to copy and paste the info from brave://gpu and also go to Chrome and chrome://gpu so we can compare.

[GitGuuuud]

@rebron
https://pastebin.com/8BetJqsR

https://pastebin.com/byyT8dfS

[Adriansun]

I have the same problem, but maybe a bit different.

1. I have 3 monitors.
2. Assume that I have 3 Brave browsers open. 1 browser and 1 tab per 1 monitor, with 1 stream / video running on each. So 3 videos running in total.

The story:
Imagine that I have 1 Twitch stream running on each of my two smaller screens, that I have on the sides of my middle (and bigger) monitor and I keep the streams in full-screen. I can observe a small lag to them from time to time. If I then open a YouTube video (eg: https://youtu.be/gmUFBTNjG4Q) on my big middle monitor and make it full screen then that video will lag all the time like crazy, and the smaller monitors will lag less, but also always.

Half-solution:
If I keep my middle monitor in full-screen, but exit the full-screen from the other two running Twitch screens, then the middle screen will work to 100% without the crazy lag, except that the video will display a noticeable ghosting.

Does this information help? Need more information?

Edit: Disabling Hardware acc and restart solved all of the problems. Heh

[perkel666]

I can confirm same thing happens here. When i go full screen and when ui disappears YouTube videos start to run in like 10fps.

AMD Ryzen 5600X
AMD Radeon 6600XT
32GB 3600Mhz RAM