did the weston can use "mesa" for "opengles and egl" demands without libmali.so on MALI targets?

Pekka Paalanen ppaalanen at gmail.com
Tue Sep 25 08:52:21 UTC 2018

On Tue, 25 Sep 2018 09:28:27 +0800 (CST)
tugouxp <13824125580 at 163.com> wrote:

> hi folks:
>     my project take wayland as display server, weston working with
> libdrm-backend, the opegles and egl interface are provided by arm
> official provide "libmali.so" library.
> but now i want to test whether it can be worked that get rid of  mali
> library completely ,and use mesa library instead.  i am use the yocto
> build system and the compile process is very succefully, but when i
> tested the weston with  following command.
> weston --backend=drm-backend.so --tty=1 --idle-time=0 &
> it seems the weston crashed and cant  be launched,  this command
> works fine with "libmali" method, so it should not be the problem of
> mali .
> the output is very chaos by different threads log interrupted each
> other, thanks for your kindly help.


you can redirect stdout and stderr to a file. Printing to the terminal
stops working once Weston enters graphics mode. If you are launching
weston through a serial console, maybe it overflows and drops random
bytes - is your serial flow control correctly set up also for the
kernel console output?

It looks like you get kernel bug output too. A kernel bug is always a
kernel issue, so you would need to look into that first.

Also make sure that Weston is not somehow patched for Mali
specifically. I don't know if such patches exist, but if they do, we
can't support them.

This page seems to summarize the status of FOSS drivers:

See also the upcoming XDC presentation about Panfrost this week:

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