X-Authentication-Warning:	delorie.com: mail set sender to geda-user-bounces using -f
X-Recipient:	geda-user AT delorie DOT com
X-Cam-AntiVirus:	no malware found
X-Cam-SpamDetails:	not scanned
X-Cam-ScannerInfo:	http://www.cam.ac.uk/cs/email/scanner/
Date:	15 Nov 2012 19:06:54 +0000
From:	"Peter C.J. Clifton" <pcjc2 AT cam DOT ac DOT uk>
To:	geda-user AT delorie DOT com
Subject:	Re: [geda-user] PCB Viewport library
Message-ID:	<Prayer.1.3.5.1211151906540.19529@hermes-1.csi.cam.ac.uk>
In-Reply-To:	<CAOkiwatK5b+DRv5zis2egZ=DTQV6NhUCggEAgDm8mO8N8XPOsg@mail.gmail.com>
References:	<CAOkiwatK5b+DRv5zis2egZ=DTQV6NhUCggEAgDm8mO8N8XPOsg AT mail DOT gmail DOT com>
X-Mailer:	Prayer v1.3.5
Mime-Version:	1.0
Sender:	"Peter C.J. Clifton" <pcjc2 AT hermes DOT cam DOT ac DOT uk>
Reply-To:	geda-user AT delorie DOT com
Errors-To:	nobody AT delorie DOT com
X-Mailing-List:	geda-user AT delorie DOT com
X-Unsubscribes-To:	listserv AT delorie DOT com

On Nov 15 2012, JAMES HARIG wrote:

>Hello People,
>
>I'm starting to use gschem and pcb to do some example projects.  This is
>working really well on one box, but on another PC, the PCB viewport window
>hides everything.  For example, if I click the 'buffer' menu, the contents
>of the menu appear behind the viewport.
>
>I'm wondering if I have the wrong version of some driver.  Can someone tell
>me what graphics library/rendering engine PCB uses?


It uses OpenGL (for 2D acceleration), rendered inside a GtkGLExt widget. It 
sounds to me like your 3D driver may be causing problems.

Do you have any issues with other 3D software, or just PCB? What is your 
graphics card, distro and currently installed driver?

I had a machine here at work today which displayed PCB's viewport 
completely black until I upgraded the proprietary NVIDIA driver to the 
latest version.


Best wishes,

Peter Clifton

- Raw text -