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RPi-Distro / chromium-browser

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Hardware accelerated Chromium on CM3+ does not render correctly #35

Closed JinShil closed 10 months ago

JinShil commented 2 years ago

For context, please see https://forums.raspberrypi.com/viewtopic.php?t=337558

Pi Hardware: CM3+ OS: Latest 32-bit Raspberry Pi OS Bullseye downloaded today Browser version: Chromium 101.0.4951.57 Built on Raspbian , running on Raspbian 11

View the graphics demo at https://pixijs.io/examples/#/demos-basic/blendmodes.js on any desktop PC as a reference for what it should look like.

On a CM3+, using dtoverlay=vc4-kms-v3d, and with Glamor enabled, the demo looks like this:

image

The speed at which the sprites move indicates the hardware acceleration pipeline is being utilized, but the graphics are just not rendered correctly.

Disabling Glamor, and adding command line arguments --use-gl=angle --use-angle=gl-egl --use-cmd-decoder=passthrough seems to work around the issue. The workaround does not work if Glamor is enabled, which is quite curious.

The demo functions correctly on the CM4.

XECDesign commented 2 years ago

@naushir

jasuarez commented 2 years ago

This is fixed in Mesa upstream.

XECDesign commented 2 years ago

@spl237 Can this be backported to our version?

JinShil commented 10 months ago

This is no longer an issue with the latest OS releases.