opengl and drm on a pi 3b?

Gene Heskett gheskett at shentel.net
Thu Mar 16 22:42:26 UTC 2017


On Thursday 16 March 2017 13:55:44 Eric Anholt wrote:

> Gene Heskett <gheskett at shentel.net> writes:
> > Hello all, been a while since I rang your doorbell, greetings from
> > West Virginia;
> >
> > 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.
>
> That sounds like you're running your compositor in software rendering.

According to the Xorg.0.log, yes. But I've no idea how to fix that.

Thanks Eric.

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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