GBM application failed with error EGL_BAD_DISPLAY

[jeffycn]

GBM application failed with error EGL_BAD_DISPLAY

[JeffyCN]

??? the yocto sdk with chromium worked well for years...

[JeffyCN]

i was using this to build images:
https://github.com/JeffyCN/yocto-manifests

[namtrino]

The Chromium Wayland from https://github.com/JeffyCN/yocto-manifests can run.
But I was faced with two issues, poor video playback performance and it crashed randomly.

[JeffyCN]

video playback is at the best performance, it has hw dec and dma importing and gpu rendering. (using v4l2vda+v4l2-mpp plugin+mpp)

crash issue should related to chromium-wayland or chromium framework, you can report to chromium issue system or try different versions

chromium-x11 should work too.

gbm should be used in chromiumos, it requires more patches.

fydeos has chromiumos-like sdk for rk3399 and rk3588 using gbm, i don't have their patches.

[JeffyCN]

one guess would be using egl get platform display api to get egl gbm display, instead of the legacy egl get display api

[namtrino]

Hi, chromium gbm require EGL version 1.5 (current version is 1.4) . Is it possible to upload version 1.5 to public?

[JeffyCN]

it's almost impossible to upgrade it.

and i don't think it requires that, because the google do have chromebook with chromeos(chrome + gbm) for 3288 and 3399, and fydeos has chromiumos(chromium + gbm) for 3399/3588.

[namtrino]

I already tested with RK3399 with yocto-manifest.
It also failed EGL_BAD_DISPLAY.

[JeffyCN]

it's been tested by lots of people for years...

[JeffyCN]

FYI, i've heard they use mali with dummy platform + google's minigbm for chrome os/chromium os's ozone gbm

[namtrino]

Thank you for an information. I think I should study FydeOS with rockchip platform first.
Because look like they use mpp (https://github.com/openFyde/overlay-rock5b-openfyde/blob/main/sys-kernel/chromeos-kernel-5_10/files/012-add-virtual-v4l2-devices.patch).

BTW, I will closed this issue because meta-rockchip focus on wayland with linux gbm.