opengl and drm on a pi 3b?
gheskett at shentel.net
Thu Mar 16 02:06:15 UTC 2017
Hello all, been a while since I rang your doorbell, greetings from West
I am in the process of converting an old lathe to cnc, and using a pi 3b
as the driver.
Doing some work on the configuration today, I got curious to see if the
features I was adding to the configuration were pushing the poor pi to
the point of exhaustion. Firing up htop, the various bits and pieces
that together make up linuxcnc, were a total of about 4 or 5% of the cpu
load. Compton, the x compositor, was burning something in the region of
165%, or a little over 1.5 of its 4 cores. It was also a few megabytes
into swap, so I rebooted it, after which compton was only using perhaps
35% of one core.
But my main reason for posting is to see if any progress is being made on
opengl and drm drivers for that bcm video the pi has. The display is
just slow enough to be noticeable. The machine its driving can move at
up to about 100 inches a minute, with bone breaking force, so it would
be a definite safety advantage if the video could keep up with the
machine in something resembling real time.
So what, if any, is the status of faster video drivers for the pi's that
use the bcm video?
Cheers, Gene Heskett
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
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