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From: 77dab@tiscali.it
To: xenomai@xenomai.org
Subject: Re: Raspberry pi 4 second monitor problem on xeno3
Date: Mon, 28 Jun 2021 14:11:45 +0200	[thread overview]
Message-ID: <6bab10316f0b227ba253558b1ea667e4@tiscali.it> (raw)
In-Reply-To: <CALLqZ8QOZS9mJBsFcU6uZWVDOHXhC4QsYLstb7hxFOg1wf3C7w@mail.gmail.com>

  
kernel comes from here: 
https://github.com/thanhtam-h/rpi4-xeno3

One thing: even if desktop isn't extended to the second screen, and
xrandr sees only a 'default' screen 
if I give: 

cat /dev/random >
/dev/fb1  
the second screen gets filled.. 
it sounds odd to me, because
that means framebuffer is open and working. 
So, what's going on here?

Il 28.06.2021 13:33 Greg Gallagher ha scritto: 

> It's possible the
drivers aren't working in the kernel without ipipe, you'll want to
confirm that first. If you didn't compile the kernel yourself you'll
want to find the sources so you can debug.. 
> Greg
  


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  reply	other threads:[~2021-06-28 12:11 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-26 13:06 Raspberry pi 4 second monitor problem on xeno3 77dab
2021-06-26 13:09 ` Greg Gallagher
2021-06-28  8:29   ` 77dab
2021-06-28 11:33     ` Greg Gallagher
2021-06-28 12:11       ` 77dab [this message]
2021-06-28 12:17         ` Greg Gallagher
2021-06-28 13:01           ` 77dab
2021-06-28 13:49             ` Greg Gallagher
2021-06-28 15:38               ` 77dab

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