[Xquartz-dev] 2.3.3_rc1

Jack Howarth howarth at bromo.med.uc.edu
Mon Mar 9 09:01:10 PDT 2009


George,
   I surveyed the behavior of vmd-xplor on the two PowerPC machines
I have here at work. In both cases...

1) dual G4 QuickSilver with ATI Radeon 7500 running 10.5.6 and X.org 2.3.2.1 or 2.3.3-rc1
2) dual G5 PowerMac with ATI Radeon 9600 running 10.5.6 and X.org 2.3.2.1

...I found that vmd-xplor works fine but only shows Apple Software Rendering
for the OpenGL render as reported with the -nowin -debug flags. As I mentioned
before, I see the same behavior on a MacBook Pro with Radeon X1600 graphics
using either X.org 2.3.2.1 or 2.3.3-rc1. In both cases, vmd-xplor works
fine but the OpenGL render is Apple Software Rendering. Only in the case of
a 2008 MacPro with Radeon HD2600 do I see the vmd-xplor failures and only for
2.3.3-rc1 under 10.5.6.  The 2.3.2.1 Xorg doesn't have the problem however in
both cases hardware rendering is used rather than Apple Software Rendering.
So the first question is why doesn't most ATI hardware use hardware rendering
for vmd-xplor? The second question is what in the new GLX/DRI breaks the
hardware rendering on a HD2600.
                      Jack

On Sat, Mar 07, 2009 at 12:10:26AM -0700, George Peter Staplin wrote:
> Quoted Jack Howarth <howarth at bromo.med.uc.edu>:
>
>> Unless there is a bug in the vmd-xplor code (PPC)...
>>
>> http://vmd-xplor.cit.nih.gov/
>>
>> ...we have a regression with 2.3.3_rc1. I am certain
>> vmd-xplor was working okay with the previous 2.4.0
>> and 2.3.3 seeds but with this seed, 'vmd-xplor -nowin
>> -debug' outputs...
>>
>> X Error of failed request:  BadRequest (invalid request code or no   
>> such operation)
>>   Major opcode of failed request:  128 (Apple-DRI)
>>   Minor opcode of failed request:  2 ()
>>   Serial number of failed request:  40
>>   Current serial number in output stream:  40
>
> I will look into this.
>
>> instead of...
>>
>> Warning) Simple graphics mode: OpenGL 1.0, no extensions
>> Info) OpenGL renderer: ATI Radeon HD 2600 OpenGL Engine
>> Info)   Features:
>> Info)   GLSL rendering mode is NOT available.
>>
>> with a stock 10.5.6 installation.
>>             Jack
>> ps This is on a 2008 MacPro with Radeon HD2600.
>
> That seems odd.  OpenGL 1.0?  No extensions...  I will look into it.
>
> Thanks,
>
> George
> -- 
> http://people.freedesktop.org/~gstaplin/


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