new l-r-m for testing

Mario Limonciello superm1 at
Fri Dec 21 01:00:17 GMT 2007


I checked with AMD on this issue.  We should still be providing a
diversion.  Just because it works "right now", does not mean it will
continue to work.

-------- Original Message --------
Subject: 	Re: [Atilinuxbeta] [Fwd: Re: new l-r-m for testing]
Date: 	Thu, 20 Dec 2007 17:56:21 -0500
From: 	Tippett, Matthew
To: 	<recipients removed>


We did rebaseline against Mesa and so it is quite possible that a subset
of functionality may work.

However the OpenGL ABI specifies only a library name and a base set of
functions, but does not go so far as to define an architecture.

Mesa is just one architecture, and consequently we cannot guarantee that
we will maintain compatibility.  AMD's OpenGL implementation is
structured around a different set of requirements to the Mesa
implementation (WS performance, tuned to AMD hardware, etc vs generic
support, broad performance, multi-platform). 

If there was an intermediate library that incurred no cost to hand over
to a libGL backend, that would solve this issue.  But the underlying
issue is that OpenGL is defined at the library interface (and not the
implementation ) level, but distributions gather at an implementation level.

Regards... Matthew

-------- Original Message --------
Subject:        Re: new l-r-m for testing       
Date:   Thu, 20 Dec 2007 12:10:00 +0200 (EET)   
From:   Timo Aaltonen <tjaalton at> <mailto:tjaalton at>  
To:     ubuntu-devel at   
References:     <alpine.OSF.0.99.0711130851170.326334 at>
<mailto:alpine.OSF.0.99.0711130851170.326334 at> 
<alpine.OSF.0.99.0712200927011.326334 at>
<mailto:alpine.OSF.0.99.0712200927011.326334 at> 
<76715d500712200137n274d89ew3c9d5aaa55baef0c at>
<mailto:76715d500712200137n274d89ew3c9d5aaa55baef0c at>        

On Thu, 20 Dec 2007, Mario Limonciello wrote:

> I may have missed something here, but why is it not necessary to divert
> libGL anymore for fglrx?  I don't recall seeing any indications that
it was
> no longer being shipped with the driver?

It works just fine with mesa, and Debian did the same change before.
The benefits of it are obvious.


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Mario Limonciello
superm1 at

Mario Limonciello
superm1 at

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