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Issue 869228 link

Starred by 2 users

Issue metadata

Status: Fixed
Owner:
Closed: Aug 13
Cc:
Components:
EstimatedDays: ----
NextAction: 2018-08-29
OS: Chrome
Pri: 1
Type: Bug

Blocking:
issue 839970



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Low-latency canvas not working on Kevin

Project Member Reported by tbuck...@chromium.org, Jul 31

Issue description

Version: 70.0.3505.0 canary
OS: 10922.0.0

1) Get a dev mode Kevin, enable experimental web features flag and tint gl flag
2) Go to https://codepen.io/miguelao/full/ejdRQX
3) Run `cat /sys/kernel/debug/dri/1/state | grep crtc-pos`

Output:
crtc-pos=0x0+0+0
crtc-pos=0x0+0+0
crtc-pos=2400x1600+0+0
crtc-pos=0x0+0+0
crtc-pos=0x0+0+0
crtc-pos=0x0+0+0
 
Also, note that on Kevin the listeners are passive by default. Therefore you need to set them like:

canvas.addEventListener("touchstart", function(e) {e.preventDefault();}, {passive: false});
Components: Blink>Canvas
Labels: LowLatency
Blocking: 839970
NextAction: 2018-08-29
Status: Fixed (was: Assigned)
https://codepen.io/miguelao/ZjJNNw turns into an overlay
on my Scarlet, as a result of the actions of crbug.com/839970,
so marking this as Fixed.  

tbuckley@ could you verify plz? Thx
The NextAction date has arrived: 2018-08-29

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