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echo: rberrypi
to: A. DUMAS
from: THEO
date: 2020-08-25 13:20:00
subject: Re: True 64 bit vs 32 bit

A. Dumas  wrote:
> David Taylor  wrote:
> > Beta 64-bit installed and working without issue on one 4 GB RPi card here.
> > https://www.raspberrypi.org/forums/viewtopic.php?t=275370
>
> No hardware gpu acceleration, yet, so graphical desktop and browser
> probably quite slow, certainly for video. They removed MMAL in an update
> because it threw errors, which for some reason made VNC Server unable to
> run. Also no Mathematica.
>
> ("MMAL (Multimedia Abstraction Layer) is a C library designed by Broadcom
> for use with the Videocore IV GPU found on the Raspberry Pi. Providing an
> abstraction layer upon another C library "OpenMAX", MMAL exposes an API
> allowing developers to take images and record video from their Raspberry Pi
> which is easier to understand and consume.")

Ubuntu are shipping 64 bit images, as are other distros like Fedora.  I
don't know what level of support you get for Pi-specific features like
hardware acceleration - most of these are targeted at 'server' type
applications, although you can install a graphical desktop.

(I don't imagine NetBSD does much in the way of hardware acceleration either)

Theo

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