1759328 - video blinking when play two video in two window on two screen with vastly different refresh rate (60Hz and 160Hz) at same time on Radeon RX 6900 XT

Status: RESOLVED INVALID

(Core :: Graphics: WebRender, defect)

Description

[mmis1000]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:100.0) Gecko/20100101 Firefox/100.0

Steps to reproduce:

1. plug two monitor with vastly different refresh rate (160hz, 60hz)
2. open two firefox window, one on each monitor.
3. play video on both window. for example h264 test video

Actual results:

The video on monitor with lower refresh rate (60hz) blinks in very high frequency.

Note:
If you change the 160hz screen to 60, it works normally.
If you pause one of the videos, it works normally.
It breaks only if you plays both.

Expected results:

Both video plays normally.

Comment 1

[mmis1000]

This is probably a regression, it didn't happen few days ago.

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Audio/Video: Playback' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 3

[Alastor Wu [:alwu]]

(In reply to mmis1000 from comment #1)

This is probably a regression, it didn't happen few days ago.

It could be bug 1758601, could you try to turn off gfx.webrender.dcomp-video-overlay-win and gfx.webrender.dcomp-video-yuv-overlay-win to see if it helps? If not, would you mind to use mozregession to find out the culprit?

Thank you.

Comment 4

[mmis1000]

(In reply to Alastor Wu [:alwu] from comment #3)

(In reply to mmis1000 from comment #1)

This is probably a regression, it didn't happen few days ago.

It could be bug 1758601, could you try to turn off gfx.webrender.dcomp-video-overlay-win and gfx.webrender.dcomp-video-yuv-overlay-win to see if it helps? If not, would you mind to use mozregession to find out the culprit?

Thank you.

Seems disable gfx.webrender.dcomp-video-overlay-win alone is enough to stop the artifacts.

Comment 5

[Alastor Wu [:alwu]]

Per comment4, move to gfx component.

Comment 6

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1758601

Comment 7

[BugBot [:suhaib / :marco/ :calixte]]

:sotaro, since you are the author of the regressor, bug 1758601, could you take a look?
For more information, please visit auto_nag documentation.

Comment 8

[Sotaro Ikeda [:sotaro]]

mmis1000, can you attach about:support to this bug?

Comment 9

[Sotaro Ikeda [:sotaro]]

When I tried with with 2 displays(144hz, 60hz) on 2 Windows 11 PCs, the problem did not happen. It might be hardware specific problem.

Comment 10

[mmis1000]

Attachment: About support

It seems it only happen when frame drops (GPU max out). 
Play https://www.youtube.com/watch?v=VnLdOcDNTe0 at 4k60/2k60 And change around may help to reproduce it. 

And another situation is:
screen capture seems can't capture the flicking.

Comment 11

[mmis1000]

The video shot on my phone is flciking
While screen captured with shareX isn't
I am not really sure whether it is about system or hardware.
So I also upload my amd radeon software setting here

Phone: https://drive.google.com/file/d/1LfYpd39Hn0rSRENJl-VI_wrCyGAuKcS9/view?usp=sharing
Screen record: https://drive.google.com/file/d/11tzlxtFOXSlf8upT9MvCSySBZIgdVjzq/view?usp=sharing
Amd radeon setting: https://drive.google.com/file/d/11u4txEjrDhyUr0zI7dZwyJxp2tC6MjJA/view?usp=sharing

Comment 12

[Jeff Muizelaar [:jrmuizel]]

I've been interacting AMD about this issue.

Comment 13

[Bob Hood [:bhood]]

Assigning to Jeff since he's engaged with AMD about it.

Comment 14

[Kelsey Gilbert [:jgilbert]]

Ok, ready to try to repro on:

Display0	2560x1440@144Hz : AMD Radeon RX 6700 XT
Display1	1920x1080@60Hz : AMD Radeon RX 6700 XT

If I play the video from the #c0, it seems to play fine. If I fullscreen one on each monitor, I do get a single flash on the 144hz when I move my mouse from the 60hz to the 144hz display.

I will try the harder video from #c10 next.

Comment 15

[Kelsey Gilbert [:jgilbert]]

I can't seem to repro this, even with #c10's video running from different timestamps in windows on the separate monitors.
However for the OP's displays, Display0 is the low-hz one:

      "Display0": "3840x2160@60Hz : AMD Radeon RX 6900 XT",
      "Display1": "3840x2160@160Hz : AMD Radeon RX 6900 XT",

I will try that.

Comment 16

[Kelsey Gilbert [:jgilbert]]

I do sometimes see a (random?) persistent rect "cut out" when I move another window on top of a playing video, in some cases. Not sure how to repro that.

Comment 17

[Kelsey Gilbert [:jgilbert]]

I can't seem to get my displays to change order. Changing primary display doesn't work, and even swapping ports and entirely restarting doesn't work.
Possible driver version bug?

Comment 18

[Kelsey Gilbert [:jgilbert]]

I will try to match driver versions.
jrmuizel to file bug for making whether we're hitting MPO more visible, because that might be a difference, actually due to monitors.

Comment 19

[Marco Castelluccio [:marco]]

Is this actually S2 given that it seems not so easy reproducible and only affects a specific gfx card?

Comment 20

[Paul Blinzer]

Tried to repro the issue without success on the recent publicly available Adrenalin drivers at https://support.amd.com with the 6900XTR configuration without success.
Ryzen 7 5800X
RX6900XT + Adrenalin 22.4.1
Windows 11 + Firefox v. 100.0

Displays:

LG 27GN950 (4k160Hz DP) + ASUS VG259QM (1080p60Hz DP/HDMI)
ASUS VG259QM (1080p240Hz DP) + ASUS VC239 (1080p60Hz HDMI)

can you please use the most recent drivers from support.amd.com and identify if the issue is still seen or what overlay related option to set in about:config to see the issue?

Comment 21

[mmis1000]

(In reply to Paul Blinzer from comment #20)

....
can you please use the most recent drivers from support.amd.com and identify if the issue is still seen or what overlay related option to set in about:config to see the issue?

Seems no longer reproducible with current driver and system (Radeon 22.4.2 & windows 11 1000.22000.652.0) even overload the firefox in setup like https://bugzilla.mozilla.org/show_bug.cgi?id=1759328#c11 . Probably fixed on amd's end or windows' end.

Comment 22

[Jeff Muizelaar [:jrmuizel]]

mmis1000 are you able to try downgrading to AMD driver version 30.0.14029.5006 (22.2.3) to see if you can still reproduce it?

Comment 23

[mmis1000]

(In reply to Jeff Muizelaar [:jrmuizel] from comment #22)

mmis1000 are you able to try downgrading to AMD driver version 30.0.14029.5006 (22.2.3) to see if you can still reproduce it?

Reproduced again with Radeon 22.2.3 + windows 11 1000.22000.652.0 , so it seems to be a AMD driver bug that already fixed in latest release.

Comment 24

[Bob Hood [:bhood]]

Since this sounds like it has been corrected by AMD, please consider resolving this report.

Comment 25

[Jeff Muizelaar [:jrmuizel]]

mmis1000 are you also able to try 22.3.1 to see if that driver has the fix as well?

Comment 26

[mmis1000]

(In reply to Jeff Muizelaar [:jrmuizel] from comment #25)

mmis1000 are you also able to try 22.3.1 to see if that driver has the fix as well?

Seems to work pretty normally

Comment 27

[mmis1000]

(In reply to Jeff Muizelaar [:jrmuizel] from comment #25)

mmis1000 are you also able to try 22.3.1 to see if that driver has the fix as well?

It seems the bug is back in Adrenalin 22.5.2 Optional. Do it need to reopen it? Or I should make a new one?

The symptom and workaround are exactly same as above as far as I can see (Overlay on video messed up, can be workaround by disable gfx.webrender.dcomp-video-overlay-win )

And it seems far more easier to reproduce this time (on my end). I wonder if other can reproduce it.

Comment 28

[Jeff Muizelaar [:jrmuizel]]

Can you open a new one?