How is it not a bug when the kernel fails to boot when you use the
default setting?
There is a workaround for this problem which is to limit memory, but
there is still a crash. The Raspbian kernel doesn't crash -- it works.
That would suggest there is a problem here.
JW
-Original Message
We completed a test this morning with the modified pigpio library and
verified our applications can now read the GPIO signals once we removed
the PROT_EXEC flags from the library init code.
We will pursue getting a change in with the pigpio library separately.
--
You received this bug notificati
We are going to try editing the pigpio library and rebuilding it and
seeing if it works. There doesn't appear to be a clear requirement for
pigpio to rely on PROT_EXEC and it has been removed in the past.
Conversation about this is happening here:
https://github.com/joan2937/pigpio/issues/375
**
Qt responded and thinks cma-128 will work for our application.
I modified our Pi test unit to use the original Ubuntu 20.04 .dtbo file
and booted successfully when I used the dtoverlay=vc4-kms-v3d,cma-64
setting.
I will test our UI with this configuration early next week.
--
You received this b
OK, we will try CMA-128 not sure if it will matter for our
application since we aren't doing complex 3D rendering.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1889223
Title:
vc4-kms-v3d boot f
I will test that with the default .dtbo file and see if it works for us.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1889223
Title:
vc4-kms-v3d boot failure focal armhf preinstalled server
To man
I was able to confirm that if I started from a clean install of Ubuntu
20.04 I could copy the 18.04 .dtbo file per the workaround described
above and get the board to boot with the usercfg.txt / dtoverlay=vc4
-kms-v3d setting in place.
I was unable to make it work on my initial install, which I h
