The DDK is not compatible with any of the Mali GPUs on the system

Technical Support
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I’m trying to run an EGLFS Gui app on a ubuntu server image built with Fenix script, with no modifications to source. Linux 5.3.

I’m getting:

ERROR: The DDK is not compatible with any of the Mali GPUs on the system.

The DDK was built for 0x860 r2p0 status range [0..15], but none of the GPUs matched:

Could not initialize egl display

This does not happen using official khadas image
Edge_Ubuntu-server-bionic_Linux-4.4_arm64_EMMC_V20190830.img

How do I fix this?

2

You are trying to use the Mali blob for the T860 chip in the Khadas Edge on a board which has a different Mali chip. If you tell which board, one of the Khadas staff can point you to the correct blob.

1 Like
3

Strange I just built this image straight from the latest fenix script!

Thank you!

I’m using an Edge-V

4

There is no GPU support for Linux 5.x in current stage.

5

Sounds odd. The mali blobs are not dependent on kernel version. The kbase driver is (and somewhat dependent on the age/version of the blob) but it appears to be working as it has detected the card and tries to load the blob, and that error message is the one I have seen when using the wrong blob (e.g. using T860 driver on T820 board). If you run the wrong kbase driver, you get different errors.

https://github.com/LibreELEC/mali-midgard <= working on 5.4rc. Driver is tweaked to only support midgard (else it will also detect bifrost chips - but bifrost really needs newer kbase).

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The support status should be documented somewhere, because the fenix script has the option to use mainline and no warning about unsupported/lacking drivers…

7

Recompiled the image with 4.4 kernel and now it works! Thanks!

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@numbqq what’s the reason for not supporting in 5.x kernels? LE has tested RK blobs on mainline kernels without problems; although we will switch RK3399 when we bump LE from 4.4 > 5.4 as it runs fine (for Kodi use) … and of course, because proprietary blobs suck :slight_smile:

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No other reasons, just haven’t tested on the mainline kernel. Seems it works fine, we will add support for the mainline kernel.

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Any expected dates? .

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I am also desperate trying get the GPU working.

Trying to get a weston with hardware acceleration.

I am a bit lost when it comes to how to configure graphic stack on linux.

But as far as I know I should be able to make it work using Panfrost with Mali860. Just did that https://panfrost.freedesktop.org/building-panfrost-mesa.html Did not work :frowning: I am at lost now.

Anyone knows if its possible to make this board work with gpu rendering?

12

Panfrost does not support Bifrost GPUs (yet) so you need to use the mali_kbase kernel driver (available from ARMs website as a last resort). I’m not sure if Khadas have the gbm-wayland blobs somewhere for download but you can find them linked on the Hardkernel wiki if not (same GPU as the N2, so same blob).

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Thanks for the reply Chewitt.

I think you are talking about the VIM3 (witch it cant have hardware acceleration until we get mainline). I am trying it on a EDGE V RK3399 with a Mali T860 Midgard 4.º gen.

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I have tested my code on VIM3L but it fails with message “Could not find DRM device!”… how can I fix this?

15

Any help with this? I can’t run my UI in VIM3L, no problems on EdgeV…

16

This has nothing to do with VIM3L.

Try image: https://dl.khadas.com/Firmware/VIM3L/Ubuntu/EMMC/VIM3L_Ubuntu-xfce-bionic_Linux-4.9_arm64_EMMC_V20190917.7z

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I know but this is another issue… I should open another thread.

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