Closed Bug 1535979 Opened 5 years ago Closed 4 years ago

Scrolling on cavesofqud.com not smooth

Categories

(Core :: Graphics: WebRender, defect, P2)

Product:
Core
Component:
Graphics: WebRender
Platform:
x86_64
Linux
Type:
defect

Tracking

()

Status:
RESOLVED FIXED
Tracking Flags:
Tracking Status
firefox67 --- affected

People

(Reporter: heftig, Unassigned)

References

(Blocks 2 open bugs,
URL
)

Details

Scrolling on http://www.cavesofqud.com/ is very janky.

The page seems to have two screen-sized fixed gradients that dominate the GPU time. One is a radial gradient producing the green background. The other one is a repeating linear gradient producing a scanline effect in front of the scrolling content.

Chromium scrolls this page smoothly.

Linux, GNOME on Wayland, Mesa DRI Intel(R) HD Graphics 530 (Skylake GT2) (i7-6820HK) and a UHD screen.

Blocks: wr-linux
Priority: -- → P2
Blocks: wr-intel-mvp
No longer blocks: wr-intel

We should check if this happens on Windows too. If not then it doesn't need to block wr-intel-mvp.

This is only really a problem for 4k

Blocks: wr-intel
No longer blocks: wr-intel-mvp

Jan, do you see this still?

Flags: needinfo?(jan.steffens)
Depends on: 1558106

In the meantime I've replaced my hardware: WQUXGA and a more powerful GPU: Mesa Intel(R) Iris(R) Plus Graphics (ICL GT2) (i7-1065G7).

It's smooth. GPU time is low (~4ms) and the workload is mostly Composite. Seems caching is working properly.

Status: NEW → RESOLVED
Closed: 4 years ago
Resolution: --- → FIXED
Flags: needinfo?(jan.steffens)
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