Re: GLX not enabled under Xvfb on Leopard
Re: GLX not enabled under Xvfb on Leopard
- Subject: Re: GLX not enabled under Xvfb on Leopard
- From: Dan Tenenbaum <email@hidden>
- Date: Fri, 21 Dec 2012 12:15:48 -0800
Hi Jeremy,
Thanks for the reply.
On the "good" machine, the result is:
otool -l /usr/X11R6/bin/Xvfb |grep uuid
uuid 0xce 0xd3 0x4d 0xbe 0x52 0x09 0x34 0xe5
and on the "bad" machine:
otool -l /usr/X11R6/bin/Xvfb |grep uuid
uuid 0x2a 0xe1 0x6f 0x9e 0xd5 0x5a 0x54 0x34
I am not sure what accounts for the difference.
Where can I install this "working" version on my "bad" machine?
Thanks,
Dan
On Fri, Dec 21, 2012 at 11:50 AM, Jeremy Huddleston Sequoia
<email@hidden> wrote:
> It's not the version of XQuartz that is the issue. It's whether or not the Xvfb you are using supports GLX. I can't recall ever supporting GLX in Xvfb, but I may be wrong.
>
> What is the version of Xvfb that "works"? Did you maybe install it from another source? Can you do:
>
> which Xvfb
> otool -l /path/to/that/Xvfb | grep uuid
>
> On Dec 21, 2012, at 10:10 AM, Dan Tenenbaum <email@hidden> wrote:
>
>> Hi,
>>
>> I have two Leopard machines that are identical hardware-wise and both
>> running OS X 10.5.8.
>>
>> On one machine (the "good" machine) I have no problems, it's running
>> Xquartz 2.16.
>>
>> The other machine (the "bad" machine) is running Xquartz 2.6.3 (the
>> final version for Leopard) and that's where I have a problem.
>>
>> I have some code that needs to access GLX when running under Xvfb. The
>> code calls the glXQueryExtension() function and it returns False.
>> (specifically, the code I'm running is the R package 'rgl', and the
>> issue can be reproduced by installing rgl and then loading it with the
>> command 'library(rgl)').
>>
>> When I am logged in to the physical console, this code works OK, it's
>> just when I'm running under Xvfb that I have this problem.
>> Now on the 'good' machine, everything works fine. Since it is running
>> Xquartz 2.1.6, it would make sense to install that on the 'bad'
>> machine, but I could not find a binary of XQuartz 2.1.6. I also tried
>> installing 2.1.4 on the "bad" machine, which was the closest version I
>> could find, but that made no difference.
>>
>> I also tried:
>> - starting Xvfb with -x GLX
>> - starting Xvfb with a color depth of 8 instead of 16
>> - completely removing X11 per the FAQ of this list
>> (http://xquartz.macosforge.org/trac/wiki/X11-UsersFAQ, "Messed it up,
>> got confused, want to start over? (Leopard)") and then reinstalling
>> XQuartz
>>
>> None of these things worked, and yet the problem must be solvable
>> because there is another machine where it works.
>>
>> Hope someone can help. Let me know if there is any other information I
>> can provide.
>>
>> Thanks in advance,
>> Dan
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